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2011 Buick LaCrosse - Spark Plugs

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NGK Iridium Plug Number LTR5IX-11 Spark Plug - 4344

Part #:: 4344
Line:: NGK

1 Year Limited Warranty

Seat: Tapered

Thread Size: M14-1.25

Heat Range: 5

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NGK Iridium Plug Number LTR6IX-11 Spark Plug - 6509

Part #:: 6509
Line:: NGK

1 Year Limited Warranty

Seat: Tapered

Thread Size: M14-1.25

Heat Range: 6