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Spark Plugs

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Autolite Iridium XP Spark Plug - XP5663

Part #:: XP5663
Line:: ATO

Limited Lifetime Warranty

Metallurgy: Iridium/Platinum

Center Electrode Tip Material: Iridium

Ground Electrode Tip Material: Platinum

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Autolite Copper Core Spark Plug - 4054

Part #:: 4054
Line:: ATO

1 Year Limited Warranty

Metallurgy: Copper

Center Electrode Tip Material: Nickel

Ground Electrode Tip Material: Nickel

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Autolite Copper Core Spark Plug - 4092

Part #:: 4092
Line:: ATO

1 Year Limited Warranty

Metallurgy: Copper

Center Electrode Tip Material: Nickel

Ground Electrode Tip Material: Nickel

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Autolite Copper Core Spark Plug - 4163

Part #:: 4163
Line:: ATO

2 Year LIMITED WARRANTY

Metallurgy: Copper

Center Electrode Tip Material: Nickel

Ground Electrode Tip Material: Nickel

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Autolite Racing Hi-Performance Spark Plug - AR4132

Part #:: AR4132
Line:: ATO

1 Year Limited Warranty

Metallurgy: Copper

Center Electrode Tip Material: Nickel

Ground Electrode Tip Material: Nickel

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Autolite Xtreme Sport Spark Plug - XS4092

Part #:: XS4092
Line:: ATO

2 Year LIMITED WARRANTY

Metallurgy: Iridium

Center Electrode Tip Material: Iridium

Ground Electrode Tip Material: Nickel

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Autolite Xtreme Sport Spark Plug - XS4163

Part #:: XS4163
Line:: ATO

1 Year Limited Warranty

Metallurgy: Iridium

Center Electrode Tip Material: Iridium

Ground Electrode Tip Material: Nickel

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Autolite Xtreme Sport Spark Plug - XS4163DP

Part #:: XS4163DP
Line:: ATO

2 Year LIMITED WARRANTY

Metallurgy: Iridium

Center Electrode Tip Material: Iridium

Ground Electrode Tip Material: Nickel