The Champion UL77V (Stock #831) is a conventional spark plug featuring nickel alloy electrodes and a copper core center electrode that provides increased conductivity and heat control for reliable overall wear. These Copper Plus small engine plugs resist fouling, provide superior corrosion resistance, and are designed for use with small marine engines. This CCH831S package is a convenient shop pack containing 24 individual spark plugs, ideal for marine repair shops, boat dealers, or fleet maintenance operations.
Key Specifications:
- Thread Diameter: 14mm (9/16")
- Thread Reach: 12.7mm (0.531")
- Seat Type: Gasket
- Hex Size: 21mm (13/16")
- Tip Configuration: Non-projected
- Terminal Type: Solid
- Configuration: Auxiliary gap
Cross-References:
OEM Numbers: 502195, 384771, 509926, 765892, 765849, 765912. Compatible replacements include AC Delco VB40FFM, Autolite 2892, Bosch W4AC, NGK BUHXW-1, Denso SF-10, and Motorcraft AVZKO.
This bulk shop pack offers excellent value for marine service professionals and provides consistent, dependable performance for Johnson/Evinrude, OMC, and other marine engine applications.
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