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Genuine GM Spark Plugs

What Causes Spark Plugs to Wear Out?

Spark plugs wear out over time due to various factors. Repeated sparking and exposure to combustion byproducts cause natural wear, leading to electrode and insulator deterioration. Carbon deposits from combustion can accumulate on the spark plug electrodes, reducing their effectiveness. Overheating, incorrect gaps, fuel additives and contaminants, and long service intervals can also contribute to spark plug wear. To prevent premature wear, regular inspections, proper maintenance, and using the correct spark plugs are crucial. If you notice poor engine performance, replacing the spark plugs may be necessary.

Other Interior Parts

  1. Starters

    The starter plays a crucial role in initiating the engine's ignition process. When the ignition key is turned, starters quickly engage, cranking the engine into life by meshing with the flywheel.

  2. Alternators

    Alternators convert mechanical energy into electrical power. They are mounted within the engine, and they produce a steady stream of electricity to recharge the battery and power various vehicle systems.

Get Factory GM Spark Plugs at Gateway Parts Online

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Spark Plug (41-114)

Part Number: 12622441
GM GM
Other Names: Spark Plug, 1156
Description: The GM Spark Plug (part number 12622441, also labeled 41-114) is designed to deliver consistent ignition performance in a wide range of...
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV
  • Chevrolet:
    • Camaro,
    • Corvette,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • LCF 3500,
    • LCF 3500HG,
    • Silverado 1500,
    • Silverado 1500 LD,
    • Silverado 1500 LTD,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • Suburban,
    • Tahoe
  • GMC:
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 1500 Limited,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL
MSRP $16.88
$10.34

Iridium Spark Plug

Part Number: 12622442
GM GM
Other Names: Spark Plug, 1157
Description: Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition...
Fits:
  • Chevrolet:
    • Corvette
MSRP $35.76
$21.90

Iridium Spark Plug

Part Number: 12662396
GM GM
Other Names: Spark Plug, 1230
Description: Coupe, 3.6L with twin-turbo. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original...
Fits:
  • Cadillac:
    • ATS,
    • CT4,
    • CTS,
    • XTS
MSRP $17.00
$10.41

Iridium Spark Plug

Part Number: 12672175
GM GM
Other Names: Spark Plug, 41104ip
Description: 4.2L twin-turbo. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium...
Fits:
  • Cadillac:
    • CT6
  • Chevrolet:
    • Corvette
MSRP $16.62
$10.18

Spark Plug (41-110)

Part Number: 12680072
GM GM
Other Names: Spark Plug, 1252
Replaces: 12563707, 12571164, 12609877, 12621258
Description: 6.0L. Iridium. Vendor:acdelco. Vendor #41-985. Iridium is the latest in spark plug technology and is an exact replacement for vehicles'...
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 $16.46
$10.08

Iridium Spark Plug

Part Number: 12680074
GM GM
Other Names: Spark Plug, 1254
Replaces: 12627160
Description: Sedan, 2.5L, 2.0L turbo, 2.5L. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original...
Fits:
  • Buick:
    • Envision,
    • LaCrosse
  • Cadillac:
    • ATS
  • Chevrolet:
    • Blazer,
    • Colorado,
    • Impala,
    • Malibu,
    • Malibu Limited
  • GMC:
    • Acadia,
    • Canyon
MSRP $17.06
$10.45

Iridium Spark Plug

Part Number: 12680075
GM GM
Other Names: Spark Plug, 1255
Replaces: 12610767, 12787099
Description: 2.0L. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition...
Fits:
  • Chevrolet:
    • Cobalt
  • Saturn:
    • Ion
MSRP $14.56
$8.92

Iridium Spark Plug

Part Number: 12681662
GM GM
Other Names: Spark Plug, 1274
Replaces: 12591131
Description: 3.5L. 3.9L. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium...
Fits:
  • Buick:
    • Lucerne,
    • Terraza
  • Chevrolet:
    • Impala,
    • Malibu,
    • Monte Carlo,
    • Uplander
  • Pontiac:
    • G6,
    • Montana
  • Saturn:
    • Aura,
    • Relay,
    • Vue
MSRP $20.28
$12.42

Spark Plug (41-101)

Part Number: 12681664
GM GM
Other Names: Spark Plug, 1276
Replaces: 12565030, 12567878, 12568387, 25161444, 25330840
Description: 3.1L. 3.5L. 3.4L. Iridium. 4.3L, 2008-2014. 3.8L, without supercharged. AC Delco 41-101
Fits:
  • Buick:
    • Century,
    • LaCrosse,
    • LeSabre,
    • Lucerne,
    • Park Avenue,
    • Regal,
    • Rendezvous,
    • Riviera,
    • Terraza
  • Chevrolet:
    • Camaro,
    • Equinox,
    • Express 1500,
    • Impala,
    • Lumina,
    • Malibu,
    • Monte Carlo,
    • Silverado 1500,
    • Uplander,
    • Venture
  • GMC:
    • Savana 1500,
    • Sierra 1500
  • Oldsmobile:
    • 88,
    • 98,
    • Alero,
    • Intrigue,
    • LSS,
    • Regency,
    • Silhouette
  • Pontiac:
    • Aztek,
    • Bonneville,
    • Firebird,
    • G6,
    • Grand Am,
    • Grand Prix,
    • Montana,
    • Torrent
  • Saturn:
    • Relay
MSRP $16.46
$10.08

Iridium Spark Plug

Part Number: 12683541
GM GM
Other Names: Spark Plug, 1279
Replaces: 55490097
Description: With high output. 1.5L turbo, ac delco markings. 1.2L turbo. 1.4L, acdelco # 1267411. 1.4L, acdelco # 41-151. Vendor #41-156. Iridium is...
Fits:
  • Buick:
    • Cascada,
    • Encore,
    • Encore GX,
    • Envista
  • Chevrolet:
    • Cruze,
    • Equinox,
    • Malibu,
    • Trailblazer,
    • Trax
  • GMC:
    • Terrain
MSRP $16.80
$10.29

Conventional Spark Plug

Part Number: 05614168
GM GM
Other Names: Spark Plug, r43tsk
Description: Optional. Vendor:acdelco. Vendor #R43TSK. Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps...
Fits:
  • Chevrolet:
    • Camaro,
    • S10,
    • S10 Blazer
  • GMC:
    • Jimmy S15,
    • S15,
    • Sonoma
  • Pontiac:
    • Firebird
MSRP $2.90
$1.78

Conventional Spark Plug

Part Number: 19302728
GM GM
Other Names: Spark Plug, r44ltsm6
Replaces: 19158001, 5614283
Description: Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps maximize plug durability Ribbed...
Fits:
  • Buick:
    • Century,
    • Regal,
    • Skylark
  • Chevrolet:
    • Beretta,
    • Corsica,
    • Lumina,
    • Monte Carlo
  • Oldsmobile:
    • Achieva,
    • Cutlass Ciera,
    • Cutlass Cruiser,
    • Cutlass Supreme
  • Pontiac:
    • Grand Am,
    • Grand Prix
MSRP $3.00
$1.84

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