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  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug
  6. NGK 7516

NGK 7516 Spark Plug

NGK 7516 Spark Plug Image 1
NGK 7516 Spark Plug Image 2
NGK 7516 Spark Plug

NGK
Brand:NGK
Part Number: 7516
UPC: 00087295175163
Weight: 0.04 lbs
Condition:New



On Sale:

$7.53

Availability:
2 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

Get the NGK 7516 Spark Plug for your vehicle. Buy now and secure your purchase online!

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Features and Benefits:

  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium's density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
  • SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Iridium
Electrical Terminal Type:
Non-Removable Nut
Ground Configuration:
Standard
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Taper Cut
Hex Size:
5/8 in.
Insulator Height:
55.00 mm
Manufacturer Heat Range:
5
Part Number:
YR5IX
Pre-Gap Size:
.040 in.
Reach:
.46 in.
Resistance:
5000.0 Ohm
Seat Type:
Tapered
Stock Number:
7516
Thread Diameter:
14.00 mm
Autolite #:
AP145DP2
Bosch #:
4206
Bosch #:
HR9APX
DENSO Auto Parts #:
5030
DENSO Auto Parts #:
T16R-U15
NGK #:
7516
Country of Origin:
JP

Manufacturer Warranty:

2 Months

Select a vehicle to narrow NGK 7516 Spark Plug fitment info!

Last Updated: 09/02/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes
Showing 100 fitments from page 6 of 9

1978

 

1977

 

1976

 

1978

 

1977

 

1976

 
GMC C25 Suburban

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25 Suburban



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1978

 

1977

 

1976

 

1978

 

1977

 

1976

 
GMC C25 Suburban

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C25 Suburban



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1975

 

1975

 
GMC C25 Suburban

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
w/o HEI
Gap 0.035
 

GMC C25 Suburban



4.8L L6 Gas OHV Iridium IX Spark Plug
w/o HEI
Gap 0.035

6 Per Vehicle

1975

 

1975

 
GMC C25 Suburban

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25 Suburban



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1975

 

1975

 
GMC C25 Suburban

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
w/o HEI
Gap 0.035
 

GMC C25 Suburban



7.4L V8 Gas OHV Iridium IX Spark Plug
w/o HEI
Gap 0.035

8 Per Vehicle

1974

 

1974

 
GMC C25/C2500 Pickup

4.8L L6 LPG OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



4.8L L6 LPG OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1974

 
GMC C25/C2500 Pickup

5.7L V8 LPG OHV
8
 
Iridium IX Spark Plug
Gap 0.030
 

GMC C25/C2500 Pickup



5.7L V8 LPG OHV Iridium IX Spark Plug
Gap 0.030

8 Per Vehicle

1974

 

1973

 

1974

 

1973

 
GMC C25/C2500 Pickup

4.1L L6 LPG OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



4.1L L6 LPG OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1973

 

1974

 

1973

 
GMC C25/C2500 Pickup

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
GMC C25/C2500 Pickup

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1974

 

1973

 

1972

 

1971

 
GMC C25/C2500 Pickup

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1974

 

1973

 

1972

 

1971

 

1970

 
GMC C25/C2500 Pickup

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1973

 

1972

 

1973

 

1972

 
GMC C25/C2500 Pickup

5.0L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



5.0L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
GMC C25/C2500 Pickup

5.7L V8 LPG OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



5.7L V8 LPG OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1972

 

1972

 
GMC C25/C2500 Pickup

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1970

 

1970

 
GMC C25/C2500 Pickup

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1970

 

1970

 
GMC C25/C2500 Pickup

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Pickup



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1974

 

1974

 
GMC C25/C2500 Suburban

4.8L L6 LPG OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



4.8L L6 LPG OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1974

 
GMC C25/C2500 Suburban

5.7L V8 Gas OHV,
5.7L V8 LPG OHV,
7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



5.7L V8 Gas OHV,
5.7L V8 LPG OHV,
7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1974

 

1973

 

1974

 

1973

 
GMC C25/C2500 Suburban

4.1L L6 LPG OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



4.1L L6 LPG OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
GMC C25/C2500 Suburban

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1974

 

1973

 

1972

 

1971

 

1970

 
GMC C25/C2500 Suburban

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1973

 

1972

 

1973

 

1972

 
GMC C25/C2500 Suburban

5.0L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



5.0L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1972

 

1972

 
GMC C25/C2500 Suburban

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1972

 

1971

 

1972

 

1971

 
GMC C25/C2500 Suburban

5.7L V8 Gas OHV,
5.7L V8 LPG OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



5.7L V8 Gas OHV,
5.7L V8 LPG OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1970

 

1970

 
GMC C25/C2500 Suburban

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1970

 

1970

 
GMC C25/C2500 Suburban

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C25/C2500 Suburban



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1986

 

1986

 
GMC C2500

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C2500



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1986

 

1985

 

1986

 

1985

 
GMC C2500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
8th VIN Digit: M
 

GMC C2500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
8th VIN Digit: M

8 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
GMC C2500

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C2500



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1981

 

1985

 

1984

 

1983

 

1982

 

1981

 
GMC C2500

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C2500



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1984

 

1984

 
GMC C2500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: M
 

GMC C2500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: M

8 Per Vehicle

1983

 

1982

 

1981

 

1983

 

1982

 

1981

 
GMC C2500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C2500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1980

 

1980

 
GMC C2500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: L
 

GMC C2500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: L

8 Per Vehicle

1980

 

1980

 
GMC C2500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: M
 

GMC C2500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: M

8 Per Vehicle

1980

 

1979

 

1980

 

1979

 
GMC C2500

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C2500



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1979

 

1979

 
GMC C2500

5.7L V8 Gas OHV,
6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C2500



5.7L V8 Gas OHV,
6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1986

 

1985

 

1986

 

1985

 
GMC C2500 Suburban

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
8th VIN Digit: M
 

GMC C2500 Suburban



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
8th VIN Digit: M

8 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 
GMC C2500 Suburban

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C2500 Suburban



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1984

 

1984

 
GMC C2500 Suburban

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C2500 Suburban



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1984

 

1984

 
GMC C2500 Suburban

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: M
 

GMC C2500 Suburban



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: M

8 Per Vehicle

1983

 

1982

 

1981

 

1983

 

1982

 

1981

 
GMC C2500 Suburban

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C2500 Suburban



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1982

 

1981

 

1980

 

1979

 

1982

 

1981

 

1980

 

1979

 
GMC C2500 Suburban

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C2500 Suburban



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1980

 

1980

 
GMC C2500 Suburban

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: L
 

GMC C2500 Suburban



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: L

8 Per Vehicle

1980

 

1980

 
GMC C2500 Suburban

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: M
 

GMC C2500 Suburban



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: M

8 Per Vehicle

1980

 

1980

 
GMC C2500 Suburban

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C2500 Suburban



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1980

 

1979

 

1980

 

1979

 
GMC C2500 Suburban

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C2500 Suburban



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1979

 

1979

 
GMC C2500 Suburban

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C2500 Suburban



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1978

 

1978

 
GMC C35

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
Heavy Duty
 

GMC C35



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035
Heavy Duty

6 Per Vehicle

1978

 

1978

 
GMC C35

5.0L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C35



5.0L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1978

 

1977

 

1978

 

1977

 
GMC C35

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C35



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1978

 

1977

 

1976

 

1978

 

1977

 

1976

 
GMC C35

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1978

 

1977

 

1976

 

1978

 

1977

 

1976

 
GMC C35

6.6L V8 Gas OHV,
7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C35



6.6L V8 Gas OHV,
7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1975

 

1975

 
GMC C35

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
w/o HEI
Gap 0.035
 

GMC C35



4.8L L6 Gas OHV Iridium IX Spark Plug
w/o HEI
Gap 0.035

6 Per Vehicle

1975

 

1975

 
GMC C35

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1975

 

1975

 
GMC C35

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
w/o HEI
Gap 0.035
 

GMC C35



7.4L V8 Gas OHV Iridium IX Spark Plug
w/o HEI
Gap 0.035

8 Per Vehicle

1974

 

1974

 
GMC C35/C3500 Pickup

4.8L L6 LPG OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



4.8L L6 LPG OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1974

 
GMC C35/C3500 Pickup

5.7L V8 LPG OHV
8
 
Iridium IX Spark Plug
Gap 0.030
 

GMC C35/C3500 Pickup



5.7L V8 LPG OHV Iridium IX Spark Plug
Gap 0.030

8 Per Vehicle

1974

 

1973

 

1974

 

1973

 
GMC C35/C3500 Pickup

4.1L L6 LPG OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



4.1L L6 LPG OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1973

 

1974

 

1973

 
GMC C35/C3500 Pickup

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
GMC C35/C3500 Pickup

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1974

 

1973

 

1972

 

1971

 
GMC C35/C3500 Pickup

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1974

 

1973

 

1972

 

1971

 

1970

 

1974

 

1973

 

1972

 

1971

 

1970

 
GMC C35/C3500 Pickup

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1973

 

1972

 

1973

 

1972

 
GMC C35/C3500 Pickup

5.0L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



5.0L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
GMC C35/C3500 Pickup

5.7L V8 LPG OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



5.7L V8 LPG OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1972

 

1972

 
GMC C35/C3500 Pickup

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1970

 

1970

 
GMC C35/C3500 Pickup

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1970

 

1970

 
GMC C35/C3500 Pickup

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C35/C3500 Pickup



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1986

 

1985

 

1986

 

1985

 
GMC C3500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C3500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 
GMC C3500

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C3500



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 
GMC C3500

4.8L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC C3500



4.8L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1984

 

1983

 

1982

 

1984

 

1983

 

1982

 
GMC C3500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C3500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1981

 

1981

 
GMC C3500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C3500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1980

 

1980

 
GMC C3500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C3500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1980

 

1979

 

1980

 

1979

 
GMC C3500

7.4L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C3500



7.4L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1979

 

1979

 
GMC C3500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: L
 

GMC C3500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: L

8 Per Vehicle

1979

 

1979

 
GMC C3500

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC C3500



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1991

 

1990

 

1991

 

1990

 
GMC C5000 Topkick

6L V8 Gas
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C5000 Topkick



6L V8 Gas Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1990

 

1989

 

1988

 

1987

 

1986

 

1990

 

1989

 

1988

 

1987

 

1986

 
GMC C6000

6L V8 Gas
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C6000



6L V8 Gas Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 
GMC C6000 Topkick

6L V8 Gas
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C6000 Topkick



6L V8 Gas Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1998

 

1997

 

1998

 

1997

 
GMC C6500 Topkick

6L V8 Gas
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C6500 Topkick



6L V8 Gas Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1990

 

1989

 

1988

 

1987

 

1986

 

1990

 

1989

 

1988

 

1987

 

1986

 
GMC C7000

6L V8 Gas
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C7000



6L V8 Gas Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 
GMC C7000 Topkick

6L V8 Gas
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C7000 Topkick



6L V8 Gas Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1998

 

1997

 

1998

 

1997

 
GMC C7500 Topkick

6L V8 Gas
8
 
Iridium IX Spark Plug
Gap 0.045
 

GMC C7500 Topkick



6L V8 Gas Iridium IX Spark Plug
Gap 0.045

8 Per Vehicle

1979

 

1978

 

1979

 

1978

 
GMC Caballero

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC Caballero



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1978

 

1978

 
GMC Caballero

5.0L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC Caballero



5.0L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1978

 

1977

 

1978

 

1977

 
GMC G15

5.0L V8 Gas OHV,
5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC G15



5.0L V8 Gas OHV,
5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1978

 

1977

 

1976

 

1978

 

1977

 

1976

 
GMC G15

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
Heavy Duty
 

GMC G15



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035
Heavy Duty

6 Per Vehicle

1976

 

1976

 
GMC G15

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: L
 

GMC G15



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty
8th VIN Digit: L

8 Per Vehicle

1976

 

1976

 
GMC G15

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC G15



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1975

 

1975

 
GMC G15

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC G15



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1974

 

1974

 
GMC G15/G1500 Van

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
w/o HEI
Gap 0.035
 

GMC G15/G1500 Van



5.7L V8 Gas OHV Iridium IX Spark Plug
w/o HEI
Gap 0.035

8 Per Vehicle

1974

 

1973

 

1972

 

1974

 

1973

 

1972

 
GMC G15/G1500 Van

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC G15/G1500 Van



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1973

 

1972

 

1973

 

1972

 
GMC G15/G1500 Van

5.0L V8 Gas
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC G15/G1500 Van



5.0L V8 Gas Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1973

 

1972

 

1971

 

1973

 

1972

 

1971

 
GMC G15/G1500 Van

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.035
 

GMC G15/G1500 Van



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.035

8 Per Vehicle

1970

 

1970

 
GMC G15/G1500 Van

4.1L L6 Gas OHV
6
 
Iridium IX Spark Plug
Gap 0.035
 

GMC G15/G1500 Van



4.1L L6 Gas OHV Iridium IX Spark Plug
Gap 0.035

6 Per Vehicle

1983

 

1982

 

1981

 

1980

 

1979

 

1983

 

1982

 

1981

 

1980

 

1979

 
GMC G1500

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC G1500



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1979

 

1979

 
GMC G1500

6.6L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC G1500



6.6L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle

1978

 

1977

 

1978

 

1977

 
GMC G25

5.7L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.045
Heavy Duty
 

GMC G25



5.7L V8 Gas OHV Iridium IX Spark Plug
Gap 0.045
Heavy Duty

8 Per Vehicle
See More Fitments on Page 7 - or - Select Your Vehicle Above


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