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: 12637197
GM GM
Other Names: Iridium Spark Plug
Fits:
  • Chevrolet:
    • Spark,
    • Volt
MSRP $24.10 CAD
$17.91 CAD

Spark Plug

Part Number: 12679800
GM GM
Fits:
  • GMC:
    • C3500HD
MSRP $23.81 CAD
$17.73 CAD

Spark Plug - QTY 1

Part Number: 12680072
GM GM
Other Names: Iridium Spark Plug
Replaces: 12563707, 12571164, 12609877, 12621258
Description: Spark plugs are crucial components in internal combustion engines that generate the spark needed for ignition. It consists of a metal...
Fits:
  • Buick:
    • LaCrosse,
    • Rainier
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche,
    • Avalanche 1500,
    • Camaro,
    • Caprice,
    • Colorado,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • LCF 3500,
    • Silverado 1500,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • SS,
    • Suburban 1500,
    • Suburban 2500,
    • Suburban 3500 HD,
    • Tahoe
  • GMC:
    • Canyon,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H3,
    • H3T
  • Pontiac:
    • G8
MSRP $23.33 CAD
$17.28 CAD

Spark Plug

Part Number: 12680074
GM GM
Other Names: Iridium Spark Plug
Replaces: 12627160
Description: 2016-20, 2.5L. Sedan, 2.5L, 2.0L turbo, 2.5L.
Fits:
  • Buick:
    • Envision,
    • LaCrosse
  • Cadillac:
    • ATS
  • Chevrolet:
    • Blazer,
    • Colorado,
    • Impala,
    • Malibu,
    • Malibu Limited
  • GMC:
    • Acadia,
    • Canyon
MSRP $22.05 CAD
$16.41 CAD

Spark Plug

Part Number: 12680076
GM GM
Other Names: Iridium Spark Plug
Replaces: 12642791
Description: With twin-turbo.
Fits:
  • Cadillac:
    • CTS,
    • XTS
MSRP $23.23 CAD
$17.21 CAD

Spark Plug

Part Number: 12681655
GM GM
Other Names: Iridium Spark Plug
Replaces: 55564962, 55580961, 55585534
Description: 1.8L.
Fits:
  • Cadillac:
    • ELR
  • Chevrolet:
    • Cruze,
    • Cruze Limited,
    • Sonic,
    • Volt
MSRP $18.73 CAD
$13.91 CAD

Spark Plug

Part Number: 12681658
GM GM
Other Names: Iridium Spark Plug
Replaces: 12590701, 12617309, 12620540
Description: 2.4l. 3.0L. 2.0L turbocharged.
Fits:
  • Buick:
    • LaCrosse,
    • Regal,
    • Verano
  • Chevrolet:
    • Captiva Sport,
    • Cobalt,
    • Equinox,
    • HHR,
    • Impala,
    • Malibu
  • GMC:
    • Terrain
  • Pontiac:
    • Solstice
  • Saturn:
    • Sky
MSRP $25.33 CAD
$18.87 CAD

Spark Plug

Part Number: 12683541
GM GM
Other Names: Iridium Spark Plug
Replaces: 55490097
Description: With high output. 1.2L turbo. 1.5L turbo, ac delco markings. 1.4L, acdelco # 1267411. 1.4L, acdelco # 41-151. Vendor #41-156.
Fits:
  • Buick:
    • Cascada,
    • Encore,
    • Encore GX,
    • Envista
  • Chevrolet:
    • Cruze,
    • Equinox,
    • Malibu,
    • Trailblazer,
    • Trax
  • GMC:
    • Terrain
MSRP $20.09 CAD
$14.91 CAD

Spark Plug

Part Number: 12578277
GM GM
Replaces: 12561454
Description: Vendor:acdelco. Vendor #41-983. 8.1L.
Fits:
  • Chevrolet:
    • Avalanche 2500,
    • Express 3500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Suburban 2500
  • GMC:
    • Savana 3500,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Yukon XL 2500
MSRP $19.44 CAD
$14.45 CAD

Spark Plug

Part Number: 12688094
GM GM
Other Names: Iridium Spark Plug
Description: 2.7L turbo. 1.3L turbo.
Fits:
  • Buick:
    • Encore GX
  • Cadillac:
    • CT4
  • Chevrolet:
    • Colorado,
    • Silverado 1500,
    • Silverado 1500 LTD,
    • Trailblazer
  • GMC:
    • Canyon,
    • Sierra 1500,
    • Sierra 1500 Limited
MSRP $27.99 CAD
$20.78 CAD

Spark Plug

Part Number: 19418153
GM GM
Other Names: Conventional Spark Plug
Replaces: 19303160, 5614226
Fits:
  • GMC:
    • Syclone,
    • Typhoon
MSRP $7.06 CAD
$5.28 CAD

Spark Plug

Part Number: 19355205
GM GM
Other Names: Conventional Spark Plug
Replaces: 05614227, 19158000, 19301655, 5614224
Description: Standard.
Fits:
  • Buick:
    • Century,
    • Electra,
    • LeSabre,
    • Park Avenue,
    • Reatta,
    • Regal,
    • Riviera,
    • Skylark
  • Cadillac:
    • Commercial Chassis,
    • Eldorado,
    • Seville
  • Oldsmobile:
    • 98,
    • Cutlass Calais,
    • Cutlass Ciera,
    • Cutlass Cruiser,
    • Delta 88,
    • Toronado
  • Pontiac:
    • Bonneville
MSRP $7.40 CAD
$5.54 CAD

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