Champion RJ18YC Spark Plugs

Champion RJ18YC Copper Plus Marine Spark Plug

Champion marine spark plugs are quality OEM replacements. The Champion RF10C Spark Plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. These marine spark plugs are designed to resist overheating under heavy engine loads.

• Copper Plus for dependable performance
• Copper core electrode allows for accurate control of heat range for longer life
• Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
• Patented SAC-9 semiconductor for maximum EMI & RFI suppression.

Built to ISO and SAE standards for proven performance.

Champion Spark Plug # 58

Application:

• Indmar Marine
• 8 cyl. 350 Oldsmobile
• 8 cyl. 403 Oldsmobile
• 8 cyl. 455 Oldsmobile
• Volvo Penta
• 16A
• 16C

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