Genuine GM Spark Plugs

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Spark Plug Wire

GM 12173581

Cylinder 6. Express, savana. 4.3l. Individual wires. #6. Cylinder 8. Durable to help transfer high voltage pulses without damage

$23.84

MSRP $38.92

Save $15.08

38.7% Off

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Spark Plug Wire

GM 12666910

6.2L with supercharged. Durable to help transfer high voltage pulses without damage Manufactured to GM OE specification for fit, form,...

$19.29

MSRP $31.50

Save $12.21

38.8% Off

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Spark Plug Wire

GM 12731653

Express, savana. 4.8l. Caprice PPV. 6.0l. 6.2L without supercharger. 7.0L. Hummer H2. 10.5 long. Impala, Monte Carlo. 5.3l.

$40.56

MSRP $70.08

Save $29.52

42.1% Off

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Iridium Spark Plug

GM 12683541

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...

$10.55

MSRP $17.22

Save $6.67

38.7% Off

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RAPIDFIRE Spark Plug

GM 19308033

Rapid Fire. Vendor:acdelco. Vendor #14. 3.8L, without supercharged. 3.1L. Solid state suppressor, with two-piece glass and brass seal,...

$6.16

MSRP $10.06

Save $3.90

38.8% Off

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Spark Plug Wire

GM 12192474

Cylinder 1.

$11.28

MSRP $18.80

Save $7.52

40% Off

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Spark Plug (41-109)

GM 12681660

3.6L, without bi-fuel. 3.0L. 3.6L, without twin-turbo. 3.0, 3.6L. 3.6L, 2nd design. Iridium is the latest in spark plug technology and...

$10.34

MSRP $16.88

Save $6.54

38.7% Off

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Conventional Spark Plug

GM 19310656

Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps maximize plug durability In...

$2.40

MSRP $3.92

Save $1.52

38.8% Off

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Conventional Spark Plug

GM 19354418

Optional. Vendor:acdelco. Vendor #r44ltsm. Standard. Vendor #r43ltse. Black Onyx coating helps reduce corrosion Copper core provides...

$2.56

MSRP $4.18

Save $1.62

38.8% Off

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Conventional Spark Plug

GM 25186682

2009-11. Black Onyx coating helps reduce corrosion Copper core provides great heat transfer and helps maximize plug durability Ribbed...

$8.39

MSRP $13.70

Save $5.31

38.8% Off

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Spark Plug Wire

GM 89018055

Durable to help transfer high voltage pulses without damage

$26.11

MSRP $45.12

Save $19.01

42.1% Off

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RAPIDFIRE Spark Plug

GM 19323044

Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for...

$5.68

MSRP $9.28

Save $3.60

38.8% Off

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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

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.
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.