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  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug
  6. Denso IT16

Denso IT16 Spark Plug

Denso IT16 Spark Plug

Denso
Brand:Denso
Part Number: IT16
UPC: 042511053250
Weight: 0.09 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Denso IT16 Spark Plug for your vehicle. Buy now and secure your purchase online!

Increased performance with World's smallest Iridium Center Eletrode (0.4mm).

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Iridium Rhodium Alloy
Gap Size:
0.044 in.
Ground Configuration:
Standard
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Tapercut, U-Groove
Hex Size:
16.0 mm
Manufacturer Heat Range:
16
Reach:
18.00 mm
Resistance:
5000 ohms
Seat Type:
Tapered
Country of Origin:
JP

Select a vehicle to narrow Denso IT16 Spark Plug fitment info!

Last Updated: 11/07/2017

Years Vehicle Per Vehicle Fit NotesFitment Notes

1990

 

1989

 

1990

 

1989

 
Buick Century

3.3L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: N, GAS, FI, Natural
 

Buick Century



3.3L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: N, GAS, FI, Natural
6 Per Vehicle

1989

 

1988

 

1987

 

1989

 

1988

 

1987

 
Buick Century

2.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Custom, VIN: W, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick Century



2.8L V6 Gas OHV Iridium Power Spark Plug
Custom, VIN: W, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

1989

 

1988

 

1987

 

1989

 

1988

 

1987

 
Buick Century

2.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: W, GAS, FI, Natural
 

Buick Century



2.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: W, GAS, FI, Natural
6 Per Vehicle

1988

 

1987

 

1988

 

1987

 
Buick Century

2.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Estate Wagon, VIN: W, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick Century



2.8L V6 Gas OHV Iridium Power Spark Plug
Estate Wagon, VIN: W, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

1988

 

1987

 

1986

 

1988

 

1987

 

1986

 
Buick Century

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Buick Century



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
6 Per Vehicle

1996

 

1995

 

1994

 

1996

 

1995

 

1994

 
Buick Commercial Chassis

5.7L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: P, GAS, FI, Natural
 

Buick Commercial Chassis



5.7L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: P, GAS, FI, Natural
8 Per Vehicle

1990

 

1990

 
Buick Electra

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: C, GAS, FI, Natural
 

Buick Electra



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: C, GAS, FI, Natural
6 Per Vehicle

1988

 

1988

 
Buick Electra

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: C, GAS, FI, Natural
 

Buick Electra



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: C, GAS, FI, Natural
6 Per Vehicle

1987

 

1987

 
Buick Electra

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: 3, GAS, FI, Natural
 

Buick Electra



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: 3, GAS, FI, Natural
6 Per Vehicle

1987

 

1987

 
Buick Electra

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Park Avenue, VIN: 3, GAS, FI, Natural
 

Buick Electra



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Park Avenue, VIN: 3, GAS, FI, Natural
6 Per Vehicle

1987

 

1987

 
Buick Electra

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
T-Type, VIN: 3, GAS, FI, Natural
 

Buick Electra



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
T-Type, VIN: 3, GAS, FI, Natural
6 Per Vehicle

1986

 

1986

 
Buick Electra

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: B, GAS, FI, Natural
 

Buick Electra



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: B, GAS, FI, Natural
6 Per Vehicle

1986

 

1986

 
Buick Electra

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Park Avenue, VIN: B, GAS, FI, Natural
 

Buick Electra



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Park Avenue, VIN: B, GAS, FI, Natural
6 Per Vehicle

1986

 

1986

 
Buick Electra

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
T-Type, VIN: B, GAS, FI, Natural
 

Buick Electra



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
T-Type, VIN: B, GAS, FI, Natural
6 Per Vehicle

2009

 

2009

 
Buick LaCrosse

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
CX, VIN: 2, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick LaCrosse



3.8L V6 Gas OHV Iridium Power Spark Plug
CX, VIN: 2, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

2009

 

2009

 
Buick LaCrosse

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
CXL, VIN: 2, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick LaCrosse



3.8L V6 Gas OHV Iridium Power Spark Plug
CXL, VIN: 2, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

2009

 

2009

 
Buick LaCrosse

5.3L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Super, VIN: C, GAS, FI, Natural
 

Buick LaCrosse



5.3L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Super, VIN: C, GAS, FI, Natural
8 Per Vehicle

1987

 

1987

 
Buick LeSabre

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Buick LeSabre



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
6 Per Vehicle

1986

 

1986

 
Buick LeSabre

3.0L V6 Gas OHV
6
 
Iridium Power Spark Plug
Custom, VIN: L, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick LeSabre



3.0L V6 Gas OHV Iridium Power Spark Plug
Custom, VIN: L, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

1986

 

1986

 
Buick LeSabre

3.0L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: L, GAS, FI, Natural
 

Buick LeSabre



3.0L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: L, GAS, FI, Natural
6 Per Vehicle

1986

 

1986

 
Buick LeSabre

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Custom, VIN: B, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick LeSabre



3.8L V6 Gas OHV Iridium Power Spark Plug
Custom, VIN: B, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

1986

 

1986

 
Buick LeSabre

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: 3, GAS, FI, Natural
 

Buick LeSabre



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: 3, GAS, FI, Natural
6 Per Vehicle

1996

 

1995

 

1996

 

1995

 
Buick Park Avenue

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: K, GAS, FI, Natural
 

Buick Park Avenue



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: K, GAS, FI, Natural
6 Per Vehicle

1996

 

1995

 

1994

 

1993

 

1992

 

1996

 

1995

 

1994

 

1993

 

1992

 
Buick Park Avenue

3.8L V6 Gas OHV Supercharged
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Supercharged
 

Buick Park Avenue



3.8L V6 Gas OHV Supercharged Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Supercharged
6 Per Vehicle

1994

 

1993

 

1992

 

1994

 

1993

 

1992

 
Buick Park Avenue

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
 

Buick Park Avenue



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
6 Per Vehicle

2007

 

2007

 
Buick Rainier

5.3L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: M, GAS, FI, Natural
 

Buick Rainier



5.3L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: M, GAS, FI, Natural
8 Per Vehicle

1991

 

1991

 
Buick Reatta

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
 

Buick Reatta



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
6 Per Vehicle

1990

 

1989

 

1988

 

1990

 

1989

 

1988

 
Buick Reatta

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: C, GAS, FI, Natural
 

Buick Reatta



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: C, GAS, FI, Natural
6 Per Vehicle

1997

 

1997

 
Buick Regal

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: K, GAS, FI, Natural
 

Buick Regal



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: K, GAS, FI, Natural
6 Per Vehicle

1997

 

1997

 
Buick Regal

3.8L V6 Gas OHV Supercharged
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Supercharged
 

Buick Regal



3.8L V6 Gas OHV Supercharged Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Supercharged
6 Per Vehicle

1990

 

1990

 
Buick Regal

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
 

Buick Regal



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
6 Per Vehicle

1990

 

1989

 

1990

 

1989

 
Buick Regal

3.1L V6 Gas OHV
6
 
Iridium Power Spark Plug
Custom, VIN: T, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick Regal



3.1L V6 Gas OHV Iridium Power Spark Plug
Custom, VIN: T, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

1990

 

1989

 

1990

 

1989

 
Buick Regal

3.1L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: T, GAS, FI, Natural
 

Buick Regal



3.1L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: T, GAS, FI, Natural
6 Per Vehicle

1989

 

1988

 

1989

 

1988

 
Buick Regal

2.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Custom, VIN: W, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick Regal



2.8L V6 Gas OHV Iridium Power Spark Plug
Custom, VIN: W, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

1989

 

1988

 

1989

 

1988

 
Buick Regal

2.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: W, GAS, FI, Natural
 

Buick Regal



2.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Limited, VIN: W, GAS, FI, Natural
6 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1995

 

1999

 

1998

 

1997

 

1996

 

1995

 
Buick Riviera

3.8L V6 Gas OHV Supercharged
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Supercharged
 

Buick Riviera



3.8L V6 Gas OHV Supercharged Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Supercharged
6 Per Vehicle

1997

 

1996

 

1995

 

1997

 

1996

 

1995

 
Buick Riviera

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: K, GAS, FI, Natural
 

Buick Riviera



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: K, GAS, FI, Natural
6 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
Buick Riviera

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
 

Buick Riviera



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
6 Per Vehicle

1990

 

1989

 

1988

 

1990

 

1989

 

1988

 
Buick Riviera

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: C, GAS, FI, Natural
 

Buick Riviera



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: C, GAS, FI, Natural
6 Per Vehicle

1987

 

1987

 
Buick Riviera

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Buick Riviera



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
6 Per Vehicle

1986

 

1986

 
Buick Riviera

3.8L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
 

Buick Riviera



3.8L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
6 Per Vehicle

1989

 

1988

 

1987

 

1989

 

1988

 

1987

 
Buick Skyhawk

2.0L l4 Gas OHV
4
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Natural
 

Buick Skyhawk



2.0L l4 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Natural
4 Per Vehicle

1988

 

1987

 

1988

 

1987

 
Buick Skyhawk

2.0L l4 Gas SOHC
4
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Natural
 

Buick Skyhawk



2.0L l4 Gas SOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 1, GAS, FI, Natural
4 Per Vehicle

1998

 

1998

 
Buick Skylark

2.4L l4 Gas DOHC
4
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: T, GAS, FI, Natural
 

Buick Skylark



2.4L l4 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: T, GAS, FI, Natural
4 Per Vehicle

1998

 

1998

 
Buick Skylark

3.1L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: M, GAS, FI, Natural
 

Buick Skylark



3.1L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: M, GAS, FI, Natural
6 Per Vehicle

1995

 

1995

 
Buick Skylark

2.3L l4 Gas DOHC
4
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: D, GAS, FI, Natural
 

Buick Skylark



2.3L l4 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: D, GAS, FI, Natural
4 Per Vehicle

1995

 

1994

 

1995

 

1994

 
Buick Skylark

3.1L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: M, GAS, FI, Natural
 

Buick Skylark



3.1L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: M, GAS, FI, Natural
6 Per Vehicle

1994

 

1994

 
Buick Skylark

2.3L l4 Gas SOHC
4
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Buick Skylark



2.3L l4 Gas SOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
4 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
Buick Skylark

3.3L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: N, GAS, FI, Natural
 

Buick Skylark



3.3L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: N, GAS, FI, Natural
6 Per Vehicle

1990

 

1990

 
Buick Skylark

3.3L V6 Gas OHV
6
 
Iridium Power Spark Plug
Custom, VIN: N, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick Skylark



3.3L V6 Gas OHV Iridium Power Spark Plug
Custom, VIN: N, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

1990

 

1990

 
Buick Skylark

3.3L V6 Gas OHV
6
 
Iridium Power Spark Plug
Gran Sport, VIN: N, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Buick Skylark



3.3L V6 Gas OHV Iridium Power Spark Plug
Gran Sport, VIN: N, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
6 Per Vehicle

1990

 

1990

 
Buick Skylark

3.3L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Luxury Edition, VIN: N, GAS, FI, Natural
 

Buick Skylark



3.3L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Luxury Edition, VIN: N, GAS, FI, Natural
6 Per Vehicle

1989

 

1989

 
Buick Skylark

3.3L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: N, GAS, FI, Natural
 

Buick Skylark



3.3L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: N, GAS, FI, Natural
6 Per Vehicle

1988

 

1987

 

1986

 

1988

 

1987

 

1986

 
Buick Skylark

3.0L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
 

Buick Skylark



3.0L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
6 Per Vehicle

1987

 

1986

 

1987

 

1986

 
Buick Somerset

3.0L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
 

Buick Somerset



3.0L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
6 Per Vehicle

1985

 

1985

 
Buick Somerset Regal

3.0L V6 Gas OHV
6
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
 

Buick Somerset Regal



3.0L V6 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: L, GAS, FI, Natural
6 Per Vehicle

1993

 

1993

 
Cadillac 60 Special

4.9L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
 

Cadillac 60 Special



4.9L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
8 Per Vehicle

1993

 

1993

 
Cadillac Allante

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac Allante



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

1992

 

1991

 

1990

 

1989

 

1992

 

1991

 

1990

 

1989

 
Cadillac Allante

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
 

Cadillac Allante



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
8 Per Vehicle

1988

 

1987

 

1988

 

1987

 
Cadillac Allante

4.1L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 7, GAS, FI, Natural
 

Cadillac Allante



4.1L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 7, GAS, FI, Natural
8 Per Vehicle

1996

 

1995

 

1996

 

1995

 
Cadillac Commercial Chassis

5.7L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: P, GAS, FI, Natural
 

Cadillac Commercial Chassis



5.7L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: P, GAS, FI, Natural
8 Per Vehicle

1992

 

1992

 
Cadillac Commercial Chassis

4.9L V8 Gas OHV
8
 
Iridium Power Spark Plug
Base, VIN: B, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Cadillac Commercial Chassis



4.9L V8 Gas OHV Iridium Power Spark Plug
Base, VIN: B, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
8 Per Vehicle

1991

 

1991

 
Cadillac Commercial Chassis

4.9L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
 

Cadillac Commercial Chassis



4.9L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
8 Per Vehicle

1990

 

1990

 
Cadillac Commercial Chassis

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Cadillac Commercial Chassis



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
8 Per Vehicle

1989

 

1988

 

1989

 

1988

 
Cadillac Commercial Chassis

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 5, GAS, FI, Natural
 

Cadillac Commercial Chassis



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 5, GAS, FI, Natural
8 Per Vehicle

1987

 

1986

 

1985

 

1987

 

1986

 

1985

 
Cadillac Commercial Chassis

4.1L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
 

Cadillac Commercial Chassis



4.1L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
8 Per Vehicle

1990

 

1990

 
Cadillac DeVille

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Cadillac DeVille



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
8 Per Vehicle

1989

 

1988

 

1989

 

1988

 
Cadillac DeVille

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 5, GAS, FI, Natural
 

Cadillac DeVille



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 5, GAS, FI, Natural
8 Per Vehicle

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 
Cadillac DeVille

4.1L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
 

Cadillac DeVille



4.1L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
8 Per Vehicle

2011

 

2011

 
Cadillac DTS

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
L, VIN: 6, GAS, Engine: LD8, FI, Natural
 

Cadillac DTS



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
L, VIN: 6, GAS, Engine: LD8, FI, Natural
8 Per Vehicle

2011

 

2011

 
Cadillac DTS

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Platinum, VIN: S, GAS, Engine: L37, FI, Natural
 

Cadillac DTS



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
Platinum, VIN: S, GAS, Engine: L37, FI, Natural
8 Per Vehicle

2011

 

2011

 
Cadillac DTS

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 6, GAS, Engine: LD8, FI, Natural
 

Cadillac DTS



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 6, GAS, Engine: LD8, FI, Natural
8 Per Vehicle

2009

 

2009

 
Cadillac DTS

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac DTS



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

2009

 

2009

 
Cadillac DTS

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: Y, GAS, FI, Natural
 

Cadillac DTS



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: Y, GAS, FI, Natural
8 Per Vehicle

2002

 

2002

 
Cadillac Eldorado

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac Eldorado



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

2000

 

2000

 
Cadillac Eldorado

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac Eldorado



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 
Cadillac Eldorado

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: Y, GAS, FI, Natural
 

Cadillac Eldorado



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: Y, GAS, FI, Natural
8 Per Vehicle

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 
Cadillac Eldorado

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac Eldorado



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
Cadillac Eldorado

4.9L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
 

Cadillac Eldorado



4.9L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
8 Per Vehicle

1990

 

1990

 
Cadillac Eldorado

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Cadillac Eldorado



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
8 Per Vehicle

1989

 

1988

 

1989

 

1988

 
Cadillac Eldorado

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 5, GAS, FI, Natural
 

Cadillac Eldorado



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 5, GAS, FI, Natural
8 Per Vehicle

1987

 

1986

 

1987

 

1986

 
Cadillac Eldorado

4.1L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
 

Cadillac Eldorado



4.1L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
8 Per Vehicle

1983

 

1982

 

1983

 

1982

 
Cadillac Eldorado

4.1L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
 

Cadillac Eldorado



4.1L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
8 Per Vehicle

1999

 

1999

 
Cadillac Escalade

5.7L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: R, GAS, FI, Natural
 

Cadillac Escalade



5.7L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: R, GAS, FI, Natural
8 Per Vehicle

1996

 

1995

 

1996

 

1995

 
Cadillac Fleetwood

5.7L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: P, GAS, FI, Natural
 

Cadillac Fleetwood



5.7L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: P, GAS, FI, Natural
8 Per Vehicle

1992

 

1991

 

1992

 

1991

 
Cadillac Fleetwood

4.9L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
 

Cadillac Fleetwood



4.9L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
8 Per Vehicle

1990

 

1990

 
Cadillac Fleetwood

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Cadillac Fleetwood



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
8 Per Vehicle

1989

 

1988

 

1989

 

1988

 
Cadillac Fleetwood

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 5, GAS, FI, Natural
 

Cadillac Fleetwood



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 5, GAS, FI, Natural
8 Per Vehicle

1987

 

1986

 

1987

 

1986

 
Cadillac Fleetwood

4.1L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
 

Cadillac Fleetwood



4.1L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 8, GAS, FI, Natural
8 Per Vehicle

1984

 

1983

 

1982

 

1984

 

1983

 

1982

 
Cadillac Fleetwood

4.1L V8 Gas OHV
8
 
Iridium Power Spark Plug
Brougham d'Elegance, VIN: 8, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Cadillac Fleetwood



4.1L V8 Gas OHV Iridium Power Spark Plug
Brougham d'Elegance, VIN: 8, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
8 Per Vehicle

1984

 

1983

 

1982

 

1984

 

1983

 

1982

 
Cadillac Fleetwood

4.1L V8 Gas OHV
8
 
Iridium Power Spark Plug
Brougham, VIN: 8, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
 

Cadillac Fleetwood



4.1L V8 Gas OHV Iridium Power Spark Plug
Brougham, VIN: 8, GAS, FI, Natural
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
8 Per Vehicle

2002

 

2002

 
Cadillac Seville

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac Seville



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

2000

 

1999

 

2000

 

1999

 
Cadillac Seville

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac Seville



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

2000

 

1999

 

1998

 

1997

 

2000

 

1999

 

1998

 

1997

 
Cadillac Seville

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: Y, GAS, FI, Natural
 

Cadillac Seville



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: Y, GAS, FI, Natural
8 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Cadillac Seville

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac Seville



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

1995

 

1995

 
Cadillac Seville

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: Y, GAS, FI, Natural
 

Cadillac Seville



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: Y, GAS, FI, Natural
8 Per Vehicle

1994

 

1993

 

1994

 

1993

 
Cadillac Seville

4.6L V8 Gas DOHC
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
 

Cadillac Seville



4.6L V8 Gas DOHC Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 9, GAS, FI, Natural
8 Per Vehicle

1993

 

1992

 

1991

 

1993

 

1992

 

1991

 
Cadillac Seville

4.9L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
 

Cadillac Seville



4.9L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: B, GAS, FI, Natural
8 Per Vehicle

1990

 

1990

 
Cadillac Seville

4.5L V8 Gas OHV
8
 
Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
 

Cadillac Seville



4.5L V8 Gas OHV Iridium Power Spark Plug
Iridium Pwr
Perf Upgrade w/World's Smallest Center Electrode (0.4 mm Dia) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir)
VIN: 3, GAS, FI, Natural
8 Per Vehicle
See More Fitments on Page 2 - or - Select Your Vehicle Above