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Product Name INDEXING WASHER KIT 2-CYLINDER 8/PK Product Type Spark Plug Indexing Washer Kit Brand SP1 Part Number SM-01047 Condition NEW Description Indexed spark plugs align the open end of the electrode toward the intake port. The hottest flame meets the new fuel charge for a performance gain, increases fuel...

Product Name INDEXING WASHER KIT 3-CYLINDER 12/PK Product Type Spark Plug Indexing Washer Kit Brand SP1 Part Number SM-01048 Condition NEW Fitment Fits 14mm threaded spark plugs. Description Indexed spark plugs align the open end of the electrode toward the intake port. The hottest flame meets the new fuel charge...