Original GM Spark Plugs

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Where Are Spark Plugs Located?

You will find spark plugs at the top of your engine's cylinder head. Once they "spark," a combination of fuel and air within your vehicle's engine will create the combustion that powers your vehicle.

When Should I Change My Spark Plugs?

If you're wondering when your spark plugs need to be replaced, the general recommendation in most owner's manuals is around 48,000 km. Of course, it's encouraged to check your owner's manual for more details. There are also warning signs you can look out for, which include:

  • Your vehicle isn't starting at all
  • There's a decrease in fuel economy
  • Your car is having a hard time accelerating
  • The Check Engine light is on
  • Engine misfires

Broken or worn-out spark plugs can damage your engine's cylinders. That's why it's important to conduct a vehicle inspection as soon as you can.

Install Genuine GM Spark Plugs | Order Today & Save

If you need to change your spark plugs, make sure to order OEM parts through our website. All the parts in our online catalog are going to fit your GM model, guaranteed. Please don't hesitate to reach out to us with your part-related questions.

Spark Plug
Part Number: 12556183
Description: Platinum. More Info
MSRP $20.97 CAD
$15.57 CAD
MSRP $20.97 CAD
$15.57 CAD
Spark Plug
Part Number: 12571533
Description: 4.4 & 4.6L, 4.6L. More Info
MSRP $20.44 CAD
$15.18 CAD
MSRP $20.44 CAD
$15.18 CAD
Spark Plug
Part Number: 12582002
Description: 3.5L. More Info
MSRP $36.36 CAD
$26.75 CAD
MSRP $36.36 CAD
$26.75 CAD
Spark Plug,
Part Number: 12621258
Replaces: 12563707, 12571164, 12609877
Description: Vendor:acdelco. Vendor #41-985. 6.0L. 5.3L. 6.2L without supercharger. Iridium. 6.0 & 6.2L. More Info
MSRP $19.15 CAD
$14.22 CAD
MSRP $19.15 CAD
$14.22 CAD
Spark Plug,
Part Number: 21025102
Replaces: 21021362, 21024774
MSRP $7.50 CAD
$6.59 CAD
MSRP $7.50 CAD
$6.59 CAD
Spark Plug
Part Number: 12650283
Other Names: F (S)Spark Plug More Names
Description: 3.0L. More Info
MSRP $20.12 CAD
$14.97 CAD
MSRP $20.12 CAD
$14.97 CAD
Spark Plug
Part Number: 12664824
Other Names: F (S)Spark Plug More Names
MSRP $36.90 CAD
$27.39 CAD
MSRP $36.90 CAD
$27.39 CAD
Spark Plug
Part Number: 12672175
Other Names: F (S)Spark Plug More Names
Description: 4.2L twin-turbo. More Info
MSRP $19.47 CAD
$14.46 CAD
MSRP $19.47 CAD
$14.46 CAD
Spark Plug Assembly
Part Number: 12680074
Replaces: 12627160
Description: Sedan, 2.5L, 2.0L turbo, 2.5L. More Info
MSRP $17.51 CAD
$13.02 CAD
MSRP $17.51 CAD
$13.02 CAD
Spark Plug,
Part Number: 12681664
Options: Left, Right
Replaces: 12568387, 12565030, 24504873, 25161444, 25330840
Description: Vendor:acdelco. Vendor #41-101. 3.4L. 3.5L. Iridium. 4.3L. Platinum. Vendor #41-921. 3.1L. 3.8L, without supercharged. More Info
MSRP $19.15 CAD
$14.22 CAD
MSRP $19.15 CAD
$14.22 CAD
Spark Plug
Part Number: 12688094
Other Names: F (S)Spark Plug More Names
Description: 2.7L turbo. 1.3L turbo. More Info
MSRP $22.21 CAD
$16.49 CAD
MSRP $22.21 CAD
$16.49 CAD
Spark Plug
Part Number: 19300382
Replaces: 19157983
Description: Standard. Vendor:acdelco. Vendor #R43TS. Cast Iron Cylinder Head. More Info
MSRP $5.77 CAD
$4.31 CAD
MSRP $5.77 CAD
$4.31 CAD
Superseded: 10/2013
Part Number: 19354416
Replaces: 19157992, 19300384
Description: 4.3L, 2003-2007. Optional. Vendor:acdelco. Standard. Vendor #R44LTS6. More Info
MSRP $5.48 CAD
$4.07 CAD
MSRP $5.48 CAD
$4.07 CAD
Spark Plug
Part Number: 19300874
Replaces: 19157982
Description: Standard. Vendor:acdelco. Vendor #R42TS. More Info
MSRP $7.45 CAD
$5.57 CAD
MSRP $7.45 CAD
$5.57 CAD
Spark Plug,
Part Number: 19301808
Replaces: 19244465, 19158032, 19208524
Description: Platinum. Vendor:acdelco. Vendor #41-906. More Info
MSRP $20.47 CAD
$15.21 CAD
MSRP $20.47 CAD
$15.21 CAD
Spark Plug Assembly (41-913)
Part Number: 19301811
Replaces: 19158035, 19244470, 19244471, 19301320, 19158040, 19208532, 25178637, 19208528
Description: 2.4L. Platinum. Vendor:acdelco. Vendor #41-913. More Info
MSRP $19.50 CAD
$14.48 CAD
MSRP $19.50 CAD
$14.48 CAD
Spark Plug
Part Number: 19354417
Replaces: 19158002, 19302723
Description: Conventional. Vendor:acdelco. More Info
MSRP $5.64 CAD
$4.22 CAD
MSRP $5.64 CAD
$4.22 CAD
Spark Plug,
Part Number: 19362247
Replaces: 19302726, 88901233, 5613796, 5614286
Description: Aluminum Cylinder Head. Vendor:bosch. Vendor #FR3LS. More Info
MSRP $5.04 CAD
$3.75 CAD
MSRP $5.04 CAD
$3.75 CAD
Spark Plug
Part Number: 19302741
Replaces: 19157996
Description: Optional. Vendor:acdelco. Vendor #cr43tsm. Standard. More Info
MSRP $5.78 CAD
$4.31 CAD
MSRP $5.78 CAD
$4.31 CAD
Spark Plug Assembly
Part Number: 19308034
Replaces: 19250973, 19250994, 88901031
Description: Platinum. More Info
MSRP $14.73 CAD
$10.97 CAD
MSRP $14.73 CAD
$10.97 CAD
Spark Plug Assembly
Part Number: 19354418
Replaces: 19157998, 19302729
Description: Optional. Vendor:acdelco. Vendor #r44ltsm. Standard. Vendor #r43ltse. More Info
MSRP $5.38 CAD
$4.01 CAD
MSRP $5.38 CAD
$4.01 CAD
Spark Plug,
Part Number: 19354429
Replaces: 19302724, 5614285, 5614167, 5614257, 91171719, 96068563
Description: Standard. Vendor:acdelco. Vendor #41-602. Vendor:NGK. Vendor #BKR6E. Vendor:nippon. Vendor #K20PR-U. More Info
MSRP $4.95 CAD
$3.71 CAD
MSRP $4.95 CAD
$3.71 CAD
Spark Plug Assembly
Part Number: 19355205
Replaces: 19158000, 19301655
MSRP $5.89 CAD
$4.40 CAD
MSRP $5.89 CAD
$4.40 CAD
Spark Plug
Part Number: 24425327
Description: 3.0L. More Info
MSRP $19.10 CAD
$14.21 CAD
MSRP $19.10 CAD
$14.21 CAD
Spark Plug
Part Number: 55486272
Description: 1.8L. More Info
MSRP $20.12 CAD
$14.97 CAD
MSRP $20.12 CAD
$14.97 CAD
Spark Plug
Part Number: 55564748
Description: 2.8L. More Info
MSRP $32.07 CAD
$25.53 CAD
MSRP $32.07 CAD
$25.53 CAD
Spark Plug
Part Number: 5613878
MSRP $4.64 CAD
$3.50 CAD
MSRP $4.64 CAD
$3.50 CAD
Spark Plug,
Part Number: 5613882
Replaces: 5613881
MSRP $5.00 CAD
$3.72 CAD
MSRP $5.00 CAD
$3.72 CAD
Superseded: 06/2013
Part Number: 19305821
Replaces: 19250972, 88901006, 19238465
Description: Platinum. Vendor:acdelco. Vendor #41-800. More Info
MSRP $9.85 CAD
$7.34 CAD
MSRP $9.85 CAD
$7.34 CAD
Spark Plug
Part Number: 88901021
Other Names: Spark Plug Pkg More Names
Description: Platinum. More Info
MSRP $16.46 CAD
$12.20 CAD
MSRP $16.46 CAD
$12.20 CAD
Spark Plug,
Part Number: 12578277
Replaces: 12561454
Description: Vendor:acdelco. Vendor #41-983. 8.1L. More Info
MSRP $18.69 CAD
$13.89 CAD
MSRP $18.69 CAD
$13.89 CAD
Spark Plug
Part Number: 12646780
Description: Coupe, 3.6L without twin-turbo. More Info
MSRP $18.36 CAD
$13.62 CAD
MSRP $18.36 CAD
$13.62 CAD
Spark Plug Assembly
Part Number: 21025103
Other Names: F (S)Spark Plug More Names
Replaces: 21024775
MSRP $6.73 CAD
$5.96 CAD
MSRP $6.73 CAD
$5.96 CAD
Spark Plug Assembly (41-119)
Part Number: 12681655
Replaces: 55564962, 55580961, 55585534
Description: 1.8L. More Info
MSRP $21.01 CAD
$15.57 CAD
MSRP $21.01 CAD
$15.57 CAD
Spark Plug Assembly
Part Number: 12681660
Replaces: 12622561
Description: 3.6L, without bi-fuel. 3.0L. 3.6L, without twin-turbo. 3.0, 3.6L. 3.6L, 2nd design. More Info
MSRP $17.52 CAD
$15.45 CAD
MSRP $17.52 CAD
$15.45 CAD
Spark Plug Assembly
Part Number: 12681663
Replaces: 12625058, 12598004
MSRP $18.75 CAD
$13.95 CAD
MSRP $18.75 CAD
$13.95 CAD
Spark Plug,
Part Number: 19185432
Other Names: F (S)Spark Plug More Names
Replaces: 88969636
Description: 2.4L. 1.8l with ho. More Info
MSRP $27.15 CAD
$20.16 CAD
MSRP $27.15 CAD
$20.16 CAD
Spark Plug,
Part Number: 19300872
Options: Left, Right
Replaces: 12597464
Description: Platinum. Vendor:acdelco. Vendor #41-990. 2.8 & 3.6L. 3.0 & 3.6L. 2nd Design. More Info
MSRP $20.97 CAD
$15.57 CAD
MSRP $20.97 CAD
$15.57 CAD
Spark Plug
Part Number: 19354430
Replaces: 19157991, 19300873
MSRP $5.02 CAD
$3.72 CAD
MSRP $5.02 CAD
$3.72 CAD
Superseded: 02/2014
Part Number: 19300875
Replaces: 19158029, 19158033, 19244463, 19244468, 19207828, 19208525
Description: Platinum. More Info
MSRP $17.99 CAD
$13.34 CAD
MSRP $17.99 CAD
$13.34 CAD
Spark Plug
Part Number: 19354422
Replaces: 19301656, 5613870
MSRP $4.95 CAD
$3.71 CAD
MSRP $4.95 CAD
$3.71 CAD
Spark Plug Assembly
Part Number: 19301812
Replaces: 19244472, 19208530, 25165715, 19158038
Description: Platinum. More Info
MSRP $17.25 CAD
$12.80 CAD
MSRP $17.25 CAD
$12.80 CAD
Superseded: 05/2015
Part Number: 19307139
Replaces: 19145283, 19250960, 19238452, 25164639
Description: Exc.Police. Exc.Taxi. Platinum. Vendor:acdelco. Vendor #CR43TS. More Info
MSRP $10.96 CAD
$8.12 CAD
MSRP $10.96 CAD
$8.12 CAD
Superseded: 10/2013
Part Number: 19308030
Replaces: 19145287, 19238456, 19250964, 25164643
Description: Rapid Fire. Vendor:acdelco. Vendor #5. More Info
MSRP $10.39 CAD
$7.70 CAD
MSRP $10.39 CAD
$7.70 CAD
Superseded: 05/2015
Part Number: 19308031
Replaces: 19238459, 19250967, 19145290, 25171347
Description: 2.4L. Rapid Fire. Vendor:acdelco. Vendor #8. More Info
MSRP $10.42 CAD
$7.73 CAD
MSRP $10.42 CAD
$7.73 CAD
Superseded: 11/2013
Part Number: 19308033
Replaces: 19250971, 19145295, 19238464, 25332828
Description: Rapid Fire. Vendor:acdelco. Vendor #14. 3.8L, without supercharged. 3.1L. More Info
MSRP $10.96 CAD
$8.12 CAD
MSRP $10.96 CAD
$8.12 CAD
Spark Plug
Part Number: 12680072
Description: 6.0L. Iridium. Vendor:acdelco. Vendor #41-985. More Info
MSRP $18.38 CAD
$13.62 CAD
MSRP $18.38 CAD
$13.62 CAD
Spark Plug Assembly (41-106)
Part Number: 12680075
Replaces: 12610767, 12787099
Description: 2.0L. More Info
MSRP $21.01 CAD
$15.63 CAD
MSRP $21.01 CAD
$15.63 CAD
Spark Plug
Part Number: 5613932
MSRP $4.56 CAD
$3.42 CAD
MSRP $4.56 CAD
$3.42 CAD

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