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2003 GMC Sierra 1500 - Spark Plugs

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Champion Iridium Plug Number RS14WYPB5 Spark Plug - 9404

Part #:: 9404
Line:: CHP

2 Year LIMITED WARRANTY

Seat: Tapered

Thread Size: M14

Heat Range: 14

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ACDelco Professional Platinum Spark Plug - 41-962

Part #:: 41-962
Line:: ACD

100,000 Mile Limited Warranty

Seat: Tapered

Thread Size: M14-1.25

Heat Range: 14

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ACDelco Professional Platinum Spark Plug - 41-979

Part #:: 41-979
Line:: ACD

100,000 Mile Limited Warranty

Seat: Tapered

Thread Size: M14-1.25

Heat Range: 14

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ACDelco Rapidfire Platinum Spark Plug - 14

Part #:: 14
Line:: ACD

3 Year Limited Warranty

Seat: Tapered

Thread Size: M14

Heat Range: 14

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ACDelco Rapidfire Platinum Spark Plug - 6

Part #:: 6
Line:: ACD

3 Year Limited Warranty

Seat: Tapered

Thread Size: M14

Heat Range: 14

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Champion Platinum Power Plug Number RS14PMC4 Spark Plug - 3015

Part #:: 3015
Line:: CHP

3 Year Limited Warranty

Seat: Tapered

Thread Size: M14

Heat Range: 14