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Spark Plugs

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Autolite Iridium Ultra Spark Plug - AI5325

Part #:: AI5325
Line:: ATO

Limited Lifetime Warranty

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 10

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Autolite Iridium XP Spark Plug - XP5324

Part #:: XP5324
Line:: ATO

Limited Lifetime Warranty

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 11

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Autolite Double Platinum Spark Plug - APP5324

Part #:: APP5324
Line:: ATO

5 Year Limited Warranty

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 11

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Autolite Double Platinum Spark Plug - APP5325

Part #:: APP5325
Line:: ATO

5 Year Limited Warranty

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 10

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Autolite Platinum Spark Plug - AP5324

Part #:: AP5324
Line:: ATO

1 Year Limited Warranty

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 11

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Autolite Copper Core Spark Plug - 5325

Part #:: 5325
Line:: ATO

2 Year LIMITED WARRANTY

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 10

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Autolite Racing Hi-Performance Spark Plug - AR5324

Part #:: AR5324
Line:: ATO

1 Year Limited Warranty

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 11 To 375