Champion Spark Plugs Spark Plug 401

Champion RS12YC Copper Plus Marine Spark Plugs

Champion marine spark plugs are quality OEM replacements. The Champion RS12YC 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 # 401

Frequently Asked Questions

• What is the Champion RS12YC Copper Plus Marine Spark Plug? The Champion RS12YC Copper Plus Marine Spark Plug is a quality OEM replacement designed for marine applications. It features a copper core electrode for increased conductivity and heat control and is designed to provide dependable performance while resisting overheating under heavy engine loads.
• How does the copper core electrode benefit the Champion RS12YC? The copper core electrode provides increased conductivity and allows for accurate control of the spark plug's heat range. This helps promote good overall wear and supports longer spark plug life while providing dependable performance.
• How does the Champion RS12YC resist corrosion? The Champion RS12YC features a patented TinTac and ULTRASEAL coated shell designed for maximum corrosion resistance. This construction is intended to provide protection against corrosion for dependable performance in marine applications.
• Does the Champion RS12YC provide EMI and RFI suppression? Yes. The Champion RS12YC features a patented SAC-9 semiconductor designed for maximum electromagnetic interference (EMI) and radio-frequency interference (RFI) suppression.
• What standards does the Champion RS12YC Copper Plus Marine Spark Plug meet? The Champion RS12YC Copper Plus Marine Spark Plug is built to ISO and SAE standards for proven performance. It combines a copper core electrode with corrosion-resistant shell coatings and a SAC-9 semiconductor for EMI and RFI suppression.
• What is the Champion part number for the RS12YC Marine Spark Plug? The Champion RS12YC Copper Plus Marine Spark Plug is identified as Champion Spark Plug number 401.