SPI-SPORT PART SM-01048 SPARK PLUG INDEXING WASHER 12 PIECE SET. The vendor part number is SM-01048. Read title to know what you are getting. Catalog descrition� 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, increased mileage and plug life *Gold washers- .75 mm *Silver washers- 1.00 mm *Purple washers - 1.25mm *Red washers- 1.60mm *12 Pieces
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