Powerhouse Products spark plug seat index washers properly index your spark plugs in the combustion chamber for piston dome clearance or for added power. These copper washers are offered in multi-thickness quantity packs for 14mm flat seat or taper seat plugs. Racers use them; why not you? Position your spark plugs for optimum spark and performance with Powerhouse Products seat index washers.

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Powerhouse Index Washer, Spark Plug Seat, 14mm, Tapered, Set of 30

Powerhouse Index Washer, Spark Plug Seat, 14mm, Tapered, Set of 30

$50.25

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