Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
JOIN GEARS TO SAVE 5%
Shop All Brands Shop All Vehicles

  2. Auto Parts
  3. Ignition
  4. Secondary Ignition
  5. Spark Plug
  6. NGK 3689

NGK 3689 Spark Plug

NGK 3689 Spark Plug Image 1
NGK 3689 Spark Plug Image 2
NGK 3689 Spark Plug Image 3
NGK 3689 Spark Plug Image 4
NGK 3689 Spark Plug

NGK
Brand:NGK
Part Number: 3689
UPC: 00087295136898
Weight: 0.04 lbs
Condition:New



On Sale:

$7.18

Availability:
18 in Stock
Warehouse: US-1
Quantity:

Product Information

Description:

Get the NGK 3689 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:
53.00 mm
Manufacturer Heat Range:
6
Part Number:
TR6IX
Pre-Gap Size:
.040 in.
Reach:
.708 in.
Resistance:
5000.0 Ohm
Seat Type:
Tapered
Stock Number:
3689
Thread Diameter:
14.00 mm
ACDelco #:
12571165
ACDelco #:
41-104
ACDelco #:
41-105
ACDelco #:
41-106
ACDelco #:
41-107
ACDelco #:
41-108
ACDelco #:
41-812
ACDelco #:
41-950
ACDelco #:
92143446
Aston Martin #:
07-85126-PK
Bosch #:
9608
Bosch #:
H7LDCR
Bosch #:
HR6KII33X
DENSO Auto Parts #:
4714
DENSO Auto Parts #:
5326
DENSO Auto Parts #:
IT20
DENSO Auto Parts #:
IT20TT
DENSO Auto Parts #:
T20ERR-U
Ford #:
AGSF12FM1
Ford #:
AGSF22FM
Ford #:
AGSF22FM1
Ford #:
AWSF22FM
Ford #:
AWSF22PP
Ford #:
CGSF12YP
General Motors #:
12571165
General Motors #:
19301811
Mazda #:
ZZN2-18-110D
Mazda #:
ZZR1-18-100
Motorcraft #:
SP-405
Motorcraft #:
SP-471
Motorcraft #:
SP-500
Motorcraft #:
SP-536
NGK #:
3689
Torch #:
Q6RTP-11
Country of Origin:
JP

Manufacturer Warranty:

2 Months

Select a vehicle to narrow NGK 3689 Spark Plug fitment info!

Last Updated: 09/02/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

2000

 

2000

 
Aston Martin DB7

6.0L V12 Gas DOHC
12
 
Iridium IX Spark Plug
Gap 0.050
 

Aston Martin DB7



6.0L V12 Gas DOHC Iridium IX Spark Plug
Gap 0.050

12 Per Vehicle

2015

 

2014

 

2013

 

2012

 

2011

 

2010

 

2009

 

2015

 

2014

 

2013

 

2012

 

2011

 

2010

 

2009

 
Cadillac CTS

6.2L V8 Gas OHV Supercharged
8
 
Iridium IX Spark Plug
Gap 0.040
 

Cadillac CTS



6.2L V8 Gas OHV Supercharged Iridium IX Spark Plug
Gap 0.040

8 Per Vehicle

2015

 

2014

 

2015

 

2014

 
Chevrolet Camaro

7.0L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.040
 

Chevrolet Camaro



7.0L V8 Gas OHV Iridium IX Spark Plug
Gap 0.040

8 Per Vehicle

2015

 

2014

 

2013

 

2012

 

2015

 

2014

 

2013

 

2012

 
Chevrolet Camaro

6.2L V8 Gas OHV Supercharged
8
 
Iridium IX Spark Plug
Gap 0.040
 

Chevrolet Camaro



6.2L V8 Gas OHV Supercharged Iridium IX Spark Plug
Gap 0.040

8 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2013

 

2012

 

2011

 

2010

 

2009

 
Chevrolet Corvette

6.2L V8 Gas OHV Supercharged
8
 
Iridium IX Spark Plug
Gap 0.040
 

Chevrolet Corvette



6.2L V8 Gas OHV Supercharged Iridium IX Spark Plug
Gap 0.040

8 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 
Chevrolet Corvette

7.0L V8 Gas OHV
8
 
Iridium IX Spark Plug
Gap 0.040
 

Chevrolet Corvette



7.0L V8 Gas OHV Iridium IX Spark Plug
Gap 0.040

8 Per Vehicle

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 
Ford Crown Victoria

4.6L V8 Flex SOHC
8
 
Iridium IX Spark Plug
FFV and/or CNG Fuel Conversions
Gap 0.044
 

Ford Crown Victoria



4.6L V8 Flex SOHC Iridium IX Spark Plug
FFV and/or CNG Fuel Conversions
Gap 0.044

8 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
Ford Crown Victoria

4.6L V8 CNG SOHC
8
 
Iridium IX Spark Plug
Gap 0.044
 

Ford Crown Victoria



4.6L V8 CNG SOHC Iridium IX Spark Plug
Gap 0.044

8 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

2003

 

2002

 

2001

 

2000

 

1999

 
Ford F-150

5.4L V8 Gas SOHC Supercharged
8
 
Iridium IX Spark Plug
Gap 0.044
 

Ford F-150



5.4L V8 Gas SOHC Supercharged Iridium IX Spark Plug
Gap 0.044

8 Per Vehicle

2004

 

2004

 
Ford F-150 Heritage

5.4L V8 Gas SOHC Supercharged
8
 
Iridium IX Spark Plug
Carryover Model
Gap 0.044
Num Eng Valves: 16
 

Ford F-150 Heritage



5.4L V8 Gas SOHC Supercharged Iridium IX Spark Plug
Carryover Model
Gap 0.044
Num Eng Valves: 16

8 Per Vehicle

2006

 

2005

 

2006

 

2005

 
Ford GT

5.4L V8 Gas DOHC Supercharged
8
 
Iridium IX Spark Plug
Gap 0.044
 

Ford GT



5.4L V8 Gas DOHC Supercharged Iridium IX Spark Plug
Gap 0.044

8 Per Vehicle

2014

 

2013

 

2014

 

2013

 
Ford Mustang

5.8L V8 Gas DOHC Supercharged
8
 
Iridium IX Spark Plug
Gap 0.036
 

Ford Mustang



5.8L V8 Gas DOHC Supercharged Iridium IX Spark Plug
Gap 0.036

8 Per Vehicle

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 

2012

 

2011

 

2010

 

2009

 

2008

 

2007

 
Ford Mustang

5.4L V8 Gas DOHC Supercharged
8
 
Iridium IX Spark Plug
Gap 0.044
 

Ford Mustang



5.4L V8 Gas DOHC Supercharged Iridium IX Spark Plug
Gap 0.044

8 Per Vehicle

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 
Ford Ranger

3.0L V6 Flex OHV
6
 
Iridium IX Spark Plug
Gap 0.044
 

Ford Ranger



3.0L V6 Flex OHV Iridium IX Spark Plug
Gap 0.044

6 Per Vehicle

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 
Ford Taurus

3.0L V6 Flex OHV
6
 
Iridium IX Spark Plug
Gap 0.044
 

Ford Taurus



3.0L V6 Flex OHV Iridium IX Spark Plug
Gap 0.044

6 Per Vehicle

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 
Lincoln Town Car

4.6L V8 Flex SOHC
8
 
Iridium IX Spark Plug
FFV and/or CNG Fuel Conversions
Gap 0.044
 

Lincoln Town Car



4.6L V8 Flex SOHC Iridium IX Spark Plug
FFV and/or CNG Fuel Conversions
Gap 0.044

8 Per Vehicle

2001

 

2000

 

1999

 

2001

 

2000

 

1999

 
Mazda B3000

3.0L V6 Flex OHV
6
 
Iridium IX Spark Plug
Gap 0.044
 

Mazda B3000



3.0L V6 Flex OHV Iridium IX Spark Plug
Gap 0.044

6 Per Vehicle

2011

 

2011

 
Mercury Grand Marquis

4.6L V8 Flex SOHC
8
 
Iridium IX Spark Plug
Gap 0.044
 

Mercury Grand Marquis



4.6L V8 Flex SOHC Iridium IX Spark Plug
Gap 0.044

8 Per Vehicle

2010

 

2009

 

2008

 

2007

 

2006

 

2010

 

2009

 

2008

 

2007

 

2006

 
Mercury Grand Marquis

4.6L V8 Flex SOHC
8
 
Iridium IX Spark Plug
FFV and/or CNG Fuel Conversions
Gap 0.044
 

Mercury Grand Marquis



4.6L V8 Flex SOHC Iridium IX Spark Plug
FFV and/or CNG Fuel Conversions
Gap 0.044

8 Per Vehicle

2005

 

2004

 

2003

 

2005

 

2004

 

2003

 
Mercury Sable

3.0L V6 Flex OHV
6
 
Iridium IX Spark Plug
Gap 0.044
 

Mercury Sable



3.0L V6 Flex OHV Iridium IX Spark Plug
Gap 0.044

6 Per Vehicle

2001

 

2001

 
Mercury Sable

3.0L V6 Flex OHV
6
 
Iridium IX Spark Plug
Gap 0.044
 

Mercury Sable



3.0L V6 Flex OHV Iridium IX Spark Plug
Gap 0.044

6 Per Vehicle

1989

 

1989

 
Pontiac Firebird

3.8L V6 Gas OHV Turbo
6
 
Iridium IX Spark Plug
Gap 0.045
 

Pontiac Firebird



3.8L V6 Gas OHV Turbo Iridium IX Spark Plug
Gap 0.045

6 Per Vehicle

1990

 

1989

 

1990

 

1989

 
Pontiac Grand Prix

3.1L V6 Gas OHV Turbo
6
 
Iridium IX Spark Plug
Gap 0.045
 

Pontiac Grand Prix



3.1L V6 Gas OHV Turbo Iridium IX Spark Plug
Gap 0.045

6 Per Vehicle

1971

 

1970

 

1969

 

1968

 

1971

 

1970

 

1969

 

1968

 
Rover 2000

2.0L L4 Gas SOHC
4
 
Iridium IX Spark Plug
Gap 0.032
 

Rover 2000



2.0L L4 Gas SOHC Iridium IX Spark Plug
Gap 0.032

4 Per Vehicle