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Genuine GM Spark Plugs

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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

Buy from our store and take advantage of our reliable nationwide shipping! Questions? Let us know.

Iridium Spark Plug

Part Number: 12681658
GM GM
Other Names: Spark Plug, 1270
Replaces: 12590701, 12617309, 12620540
Description: 2.4l. 3.0L. 2.0L turbocharged. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original...
Fits:
  • Buick:
    • LaCrosse,
    • Regal,
    • Verano
  • Chevrolet:
    • Captiva Sport,
    • Cobalt,
    • Equinox,
    • HHR,
    • Impala,
    • Malibu
  • GMC:
    • Terrain
  • Pontiac:
    • Solstice
  • Saturn:
    • Sky
MSRP $16.46
$10.08

Iridium Spark Plug

Part Number: 12650283
GM GM
Other Names: Spark Plug, 1222
Description: 3.0L. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition...
Fits:
  • Cadillac:
    • CT5,
    • CT6
MSRP $17.06
$10.45

Spark Plug Wire

Part Number: 19351561
GM GM
Other Names: Wire, 351b
Replaces: 12192002, 12192357
Description: Cylinder 6.
Fits:
  • Cadillac:
    • Escalade
  • Chevrolet:
    • C2500,
    • C3500,
    • C3500HD,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • K2500 Pickup,
    • K3500 Pickup,
    • Tahoe
  • GMC:
    • C2500 Pickup,
    • C3500 Pickup,
    • C3500HD,
    • K2500 Pickup,
    • K3500 Pickup,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Yukon
$13.84

Spark Plug Wire

Part Number: 21024473
GM GM
Other Names: Wire
Description: Cylinder 2.
Fits:
  • Saturn:
    • SC1,
    • SL,
    • SL1,
    • SW1
MSRP $12.80
$7.68

Iridium Spark Plug

Part Number: 19185432
GM GM
Other Names: Spark Plug, 5201
Replaces: 88969636, 88969637, 88973522
Description: 2.4L. 1.8l with ho. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium...
Fits:
  • Pontiac:
    • Vibe
MSRP $14.28
$8.75

Iridium Spark Plug

Part Number: 19417055
GM GM
Other Names: Spark Plug, 9255
Description: 4.8, 5.3 & 6.0L. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium...
Fits:
  • Chevrolet:
    • Express 1500,
    • Express 2500,
    • Express 3500
  • GMC:
    • Savana 1500,
    • Savana 2500,
    • Savana 3500
MSRP $17.02
$10.42

Iridium Spark Plug

Part Number: 12637197
GM GM
Other Names: Spark Plug, 1192
Description: Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition...
Fits:
  • Chevrolet:
    • Spark,
    • Volt
MSRP $16.62
$10.18

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

Iridium Spark Plug

Part Number: 12681655
GM GM
Other Names: Spark Plug, 1267
Replaces: 55564962, 55580961, 55585534
Description: 1.8L. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium composition...
Fits:
  • Cadillac:
    • ELR
  • Chevrolet:
    • Cruze,
    • Cruze Limited,
    • Sonic,
    • Volt
MSRP $17.16
$10.51

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

Conventional Spark Plug

Part Number: 96130723
GM GM
Other Names: Spark Plug
Description: 2007-08. Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps maximize plug durability In...
Fits:
  • Chevrolet:
    • Aveo,
    • Aveo5
MSRP $13.52
$8.28

Spark Plug Wire

Part Number: 12192372
GM GM
Other Names: Wire
Description: Cylinder 4.
Fits:
  • Buick:
    • Century
  • Chevrolet:
    • Impala,
    • Lumina,
    • Malibu,
    • Monte Carlo,
    • Venture
  • Oldsmobile:
    • Alero,
    • Silhouette
  • Pontiac:
    • Grand Am,
    • Grand Prix,
    • Montana
$14.96

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