Genuine GM Spark Plugs

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Double Platinum Spark Plug

GM 19307136

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

$9.41

MSRP $15.30

Save $5.89

38.5% Off

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Double Platinum Spark Plug

GM 19313639

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

$10.34

MSRP $16.80

Save $6.46

38.5% Off

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Spark Plug Wire Set

GM 88862443

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

$53.09

MSRP $88.66

Save $35.57

40.1% Off

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Spark Plug Wire Set

Motorcraft WR-5938

Backed by the Motorcraft Service Parts Warranty which offers 2 years, unlimited mileage, limited labor cost and no commercial exceptions....

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$71.91

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Spark Plug Wire Set

Motorcraft WR-4110

Genuine Motorcraft Spark Plug Wire Set, part number WR-4110. This Motorcraft spark plug wire set converts battery voltage into the high...

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$38.52

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Spark Plug Wire Set

Motorcraft WR-5934

Genuine Motorcraft Spark Plug Wire Set, part number WR-5934. This Motorcraft spark plug wire set converts battery voltage into the high...

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$75.97

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Spark Plug Wire Kit

GM 19417608

All models. 4.3l. 6 cylinder. Durable to help transfer high voltage pulses without damage

$112.67

MSRP $190.15

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40.7% Off

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Spark Plug Wire Set

GM 19154575

All models. 5.7l. G10-30 vans. 5.0l. All models. 5.0l. G10-30 vans. 5.7l. Durable to help transfer high voltage pulses without damage

$68.26

MSRP $114.72

Save $46.46

40.5% Off

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Spark Plug Wire Set

GM 12073930

Durable to help transfer high voltage pulses without damage

$68.43

MSRP $115.00

Save $46.57

40.5% Off

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Spark Plug Wire Set

GM 19154583

All models. 4.3l. S-series. 4.3l. Astro, Safari. 4.3l. 6 cylinder, 1985-95. Durable to help transfer high voltage pulses without damage

$64.12

MSRP $107.76

Save $43.64

40.5% Off

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Double Platinum Spark Plug

GM 19301808

Platinum. Vendor:acdelco. Vendor #41-906. One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps...

$10.42

MSRP $16.94

Save $6.52

38.5% Off

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Spark Plug Wire Set

GM 12043728

Durable to help transfer high voltage pulses without damage

$81.02

MSRP $136.16

Save $55.14

40.5% 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.