Seller notes

Spark Plug Code: RA8HC Copper Plus spark plug has a copper core center electrode that allows for accurate control of heat range, optimizing performance, and longevity of the spark plug. Patented SAC-9 semi-conductor resistor for maximum and suppression. Patented Ultraseal coated shell for rust prevention. Plug Type: RA8HC. Seat Type: Gasket. Hex Size (Inch): 0.625. Hex Size (MM): 15.88. Thread Size (Inch): 0.472. Thread Size (MM): 12. Thread Reach (Inch): 0.75. Taper Diameter (Inch): 0.2. Instal...

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