Seller notes

Spark Plug Code: J17LM 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: J17LM. Seat Type: Gasket. Hex Size (Inch): 0.813. Hex Size (MM): 20.65. Thread Size (Inch): 0.551. Thread Size (MM): 14. Thread Reach (Inch): 0.375. Taper Diameter (Inch): 0.36. Inst...

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