Champion Marine Spark Plug UL77V #831 #831M 

Purchase is for one plug.  Plug may be card or box.

The spark plug is designed to withstand high temperatures and fits most small-engine brands and models.

• For use with small marine engines

• Champion copper plus small engine plugs resist fouling and provide superior corrosion resistance

• Feature a copper core electrode that provides increased conductivity and heat control while delivering good overall wear characteristics

• Semiconductor suppressor: Eliminates radio frequency interference

• Engineered to exceed OE designs and maximum durability

• Designed for easy starting

• Plug Type: UL77V

Seat Type: Gasket

Hex Size: 13/16 Inch (20 mm)

Thread Size:  14 mm

Plug Reach: 0.531 in  (13.5 mm)

Preset gap: 0.048 to 0.053 in

MPN: 831, 831M

UPC card: 03755156564 

UPC box 1 plug: 037551005147

USA domestic shipments are shipped USPS Ground Advantage Mail with Tracking