Champion UL77V 831M Marine Spark Plug

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Champion UL77V 831M Marine Spark PlugThis part# has been discontinued. Champion 831 UL77V spark plug may be used as a replacement. Conventional spark plug with nickel alloy electro des. Copper core center electrode allows for increased conductivity and heat control. Product Specifications Shell Thread Diameter 14mm Thread Pitch 1.25mm Seat Type Gasket Reach 12.7mm (1/2") Hex Size 13/16" (21mm) Terminal Type Solid Center Electrode Material Nickel Type Standard Size 2.5mm Projection on-Projected Ground Electrode Material Nickel Type Surface Discharge Specifications Resistor No Heat Range 77 Torque Specs: Cast Iron: 26-30 lb. ft. Aluminum: 18-22 lb. ft. Show more