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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: 12681656
GM GM
Other Names: Spark Plug, 1268
Replaces: 55576026, 55585517
Description: 1.4L turbo. Without high output. 1.8L. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original...
Fits:
  • Buick:
    • Encore
  • Chevrolet:
    • Cruze,
    • Cruze Limited,
    • Sonic,
    • Trax
MSRP $17.70
$10.84

Iridium Spark Plug

Part Number: 19301814
GM GM
Other Names: Spark Plug, 6899
Replaces: 12565996, 19256624
Description: 3.6L, 1st design. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components Iridium...
Fits:
  • Buick:
    • LaCrosse,
    • Rendezvous
  • Cadillac:
    • CTS,
    • SRX,
    • STS
MSRP $17.02
$10.42

RAPIDFIRE Spark Plug

Part Number: 19308033
GM GM
Other Names: Spark Plug, 7202
Replaces: 19145295, 19238464, 19250971, 25332828
Description: Rapid Fire. Vendor:acdelco. Vendor #14. 3.8L, without supercharged. 3.1L. Solid state suppressor, with two-piece glass and brass seal,...
Fits:
  • Buick:
    • Century
  • Chevrolet:
    • Corvette
  • Pontiac:
    • Grand Prix
MSRP $9.78
$5.99

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

Conventional Spark Plug

Part Number: 19354421
GM GM
Other Names: Spark Plug, r42lts
Replaces: 19157987, 19301658, 5613531, 5613717
Description: Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps maximize plug durability In...
Fits:
  • Pontiac:
    • Firebird,
    • Grand Prix
MSRP $4.18
$2.56

Conventional Spark Plug

Part Number: 19355205
GM GM
Other Names: Spark Plug, r45lts6
Replaces: 05614227, 19158000, 19301655, 5614224
Description: Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps maximize plug durability In...
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 $4.18
$2.56

Spark Plug Wire

Part Number: 21024472
GM GM
Other Names: Wire
Description: Cylinder 1,4.
Fits:
  • Saturn:
    • SC1,
    • SL,
    • SL1,
    • SW1
MSRP $26.40
$15.84

Conventional Spark Plug

Part Number: 19310656
GM GM
Other Names: Spark Plug, r44tsx
Replaces: 19157993, 5613794, 5613935
Description: Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps maximize plug durability In...
Fits:
  • Buick:
    • Century,
    • Electra
  • Oldsmobile:
    • 98,
    • Cutlass Ciera
MSRP $3.92
$2.40

Conventional Spark Plug

Part Number: 19354427
GM GM
Other Names: Spark Plug, r44ts
Replaces: 19157994, 19301654, 5613191, 5613956
Description: Standard. Vendor:acdelco. Vendor #R44TS. Optional. Vendor #R44T8. Black Onyx coating helps reduce corrosion Copper core provides great...
Fits:
  • Buick:
    • Regal,
    • Riviera
  • Chevrolet:
    • Camaro,
    • Monte Carlo
  • Pontiac:
    • Firebird
MSRP $5.02
$3.07

Spark Plug Wire

Part Number: 12173581
GM GM
Other Names: Spark Plug Wire, 346w
Description: Cylinder 6. Express, savana. 4.3l. Individual wires. #6. Cylinder 8. Durable to help transfer high voltage pulses without damage
Fits:
  • Chevrolet:
    • Astro,
    • Blazer,
    • C2500,
    • C3500,
    • C3500HD,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • K2500 Pickup,
    • K3500 Pickup,
    • S10,
    • Silverado 1500,
    • Silverado 1500 Classic
  • GMC:
    • C2500 Pickup,
    • C3500 Pickup,
    • C3500HD,
    • Jimmy,
    • K2500 Pickup,
    • K3500 Pickup,
    • Safari,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sonoma
  • Oldsmobile:
    • Bravada
MSRP $37.98
$23.26

Spark Plug Wire

Part Number: 12192133
GM GM
Other Names: Spark Plug Wire, 349v
Description: Coil Stamped 12558693. All models. 4.8l, 5.3l, 6.0l. 10.5 long. Hummer H2. 10.5 long. Durable to help transfer high voltage pulses...
Fits:
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche 1500,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD,
    • Silverado 1500 HD Classic,
    • Silverado 2500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe
  • GMC:
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD,
    • Sierra 1500 HD Classic,
    • Sierra 2500,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2
MSRP $28.62
$17.53

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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