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Spark Plugs

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Autolite Iridium Ultra Spark Plug - AI3924

Part #:: AI3924
Line:: ATO

Limited Lifetime Warranty

Seat: Gasket

Thread Size: M14

Heat Range: 9

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Autolite Iridium Ultra Spark Plug - AI5684

Part #:: AI5684
Line:: ATO

Limited Lifetime Warranty

Seat: Gasket

Thread Size: M12

Heat Range: 9

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NGK Iridium/Platinum Plug Number IMR9D-9H Spark Plug - 6544

Part #:: 6544
Line:: NGK

1 Year Limited Warranty

Seat: Gasket

Thread Size: M10-1.0

Heat Range: 9

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NGK Iridium Plug Number CR9EHI-9 Spark Plug - 6419

Part #:: 6419
Line:: NGK

1 Year Limited Warranty

Seat: Gasket

Thread Size: M10-1.0

Heat Range: 9

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NGK Laser Platinum Plug Number PMR9B Spark Plug - 4717

Part #:: 4717
Line:: NGK

1 Year Limited Warranty

Seat: Gasket

Thread Size: M10-1.0

Heat Range: 9

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ACDelco Professional Platinum Spark Plug - 41-812

Part #:: 41-812
Line:: ACD

100,000 Mile Limited Warranty

Seat: Tapered

Thread Size: M14

Heat Range: 9

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NGK Copper Plug Number CPR9EA-9 Spark Plug - 2308

Part #:: 2308
Line:: NGK

1 Year Limited Warranty

Seat: Gasket

Thread Size: M10-1.0

Heat Range: 9

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NGK Copper Plug Number ER9EH Spark Plug - 5869

Part #:: 5869
Line:: NGK

1 Year Limited Warranty

Seat: Gasket

Thread Size: M8-1.0

Heat Range: 9

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NGK Copper Plug Number LMAR9G Spark Plug - 92222

Part #:: 92222
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M10-1.0

Heat Range: 9

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NGK Copper Plug Number MR9K-9 Spark Plug - 97469

Part #:: 97469
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M10-1.0

Heat Range: 9

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Autolite Xtreme Sport Spark Plug - XS5224DP

Part #:: XS5224DP
Line:: ATO

2 Year LIMITED WARRANTY

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 9