Genuine GM Spark Plugs

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Spark Plug Wire Set

GM 19297033

Professional, premium aftermarket replacement This GM Genuine Part is designed, engineered, and tested to rigorous standards and is...

$57.58

MSRP $100.14

Save $42.56

42.5% Off

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Spark Plug Wire Set

GM 88862396

Professional, premium aftermarket replacement This GM Genuine Part is designed, engineered, and tested to rigorous standards and is...

$50.46

MSRP $87.18

Save $36.72

42.1% Off

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Spark Plug Wire Set

GM 88862391

Professional, premium aftermarket replacement This GM Genuine Part is designed, engineered, and tested to rigorous standards and is...

$40.47

MSRP $69.92

Save $29.45

42.1% Off

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Double Platinum Spark Plug

GM 19307142

One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine...

$7.95

MSRP $12.98

Save $5.03

38.8% Off

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Spark Plug Wire Set

GM 19170839

S-series. 2.8l. Durable to help transfer high voltage pulses without damage

$54.43

MSRP $94.06

Save $39.63

42.1% Off

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Spark Plug Wire Set

GM 19171857

All models. 7.4l. Express, savana. 7.4l. Durable to help transfer high voltage pulses without damage

$141.06

MSRP $246.18

Save $105.12

42.7% Off

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Spark Plug Wire Set

GM 19433890

S-series. 4.3l. Astro, Safari. 4.3l. 4.3L, 2003-2007. Express, savana. 4.3l. All models. 4.3l.

$135.82

MSRP $237.04

Save $101.22

42.7% Off

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Spark Plug Tube Seal

GM 12607600

3.6L. ATS. Spark plug shield seals.

$6.55

MSRP $9.39

Save $2.84

30.2% Off

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Double Platinum Spark Plug

GM 19307140

Platinum. Vendor:acdelco. Vendor #41-808. One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps...

$8.26

MSRP $13.48

Save $5.22

38.7% Off

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Spark Plug Wire Set

GM 89017320

Malibu, Malibu Maxx. 3.5l. Relay. Terraza, Uplander. 3.5l. Aztek, Rendezvous. 3.5l. 3.4L. G6. 3.5l,3.6l. Montana SV6. 3.5l. Durable to...

$109.12

MSRP $190.60

Save $81.48

42.7% Off

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Spark Plug Wire Kit

GM 19417604

Mfi. Grand Prix. 3.8l. LaCrosse. 3.8l. Sfi. Lucerne. 3.8l. 3.8L, all. 3.8L, without supercharger. 3.8L, with supercharged. Durable to...

$77.44

MSRP $134.67

Save $57.23

42.5% Off

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Spark Plug Wire Set

GM 19154584

All models. 5.0l, 5.7l. Durable to help transfer high voltage pulses without damage

$77.43

MSRP $134.66

Save $57.23

42.5% 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.