Champion QL77JC4SP Copper Plus Marine Spark Plug Shop Pack 828S - 24 Count

The Champion QL77JC4SP (Stock #828S) is a professional shop pack containing 24 copper plus spark plugs designed specifically for marine, small engine, and powersports applications. This bulk packaging is ideal for professional installers, marine technicians, and equipment service shops.

Key Features:

• Copper core center electrode provides increased conductivity and superior heat control for extended wear
• Nickel alloy electrodes for durability and consistent performance
• Built-in resistor for maximum EMI suppression and electrical interference reduction
• Gasket seat design with 14mm thread diameter and 12.7mm (1/2") reach
• Pre-gapped to 0.028" - 0.033" (0.7mm - 0.84mm) for quick installation
• Heat range 77 for versatile applications
• Superior corrosion resistance and fouling prevention

Technical Specifications:

• Thread Size: 14mm x 1.25mm pitch
• Hex Size: 13/16" (20.6mm)
• Seat Type: Gasket
• Terminal Type: Solid, non-removable nut
• Resistor: Yes (inductive type)
• Torque Specs: 26-30 lb-ft (cast iron), 18-22 lb-ft (aluminum)

Built to ISO and SAE standards, these OE-type replacement spark plugs deliver dependable performance and durability. Fits Evinrude/Johnson, Mercury Marine, Mariner, OMC, Suzuki, Volvo Penta and Yamaha engines. Replaces OEM 0502180. Each shop pack includes 24 individually packaged plugs in protective styrofoam packaging.