Champion RN12YC Copper Plus Marine Spark Plug, CCH404

The Champion RN12YC Copper Plus Marine Spark Plug (CCH404) is a marine-grade replacement spark plug built for dependable ignition performance under the heavy, sustained loads typical of inboard marine engines. It uses a copper core electrode that gives precise control over heat range, helping the plug run cooler and resist fouling for longer service life even under continuous heavy engine loads. The shell is finished with Champion's patented TinTac and ULTRASEAL coatings, which provide corrosion resistance in the humid, saltwater-exposed environments marine engines operate in. A patented SAC-9 semiconductor is built into the plug to suppress EMI and RFI interference, protecting onboard electronics and marine electronics from ignition noise. Every RN12YC Copper Plus plug is manufactured to ISO and SAE standards, so it delivers consistent, proven performance as an OEM-quality replacement. This spark plug is categorized for Chrysler inboard marine engine applications. Whether replacing a worn or fouled plug as routine maintenance or restoring lost performance and smooth idle, the Champion RN12YC Copper Plus Marine Spark Plug, part number CCH404, is a straightforward drop-in replacement for boat owners who want factory-grade ignition reliability on the water.

Specifications

• Brand: Champion
• Manufacturer Part Number: CCH404
• Champion Spark Plug Number: 404
• Type: Copper Plus
• Electrode Material: Copper core
• Shell Coating: TinTac and ULTRASEAL corrosion-resistant coating
• Interference Suppression: SAC-9 semiconductor for EMI and RFI suppression
• Standards Compliance: Built to ISO and SAE standards
• Category: Chrysler Inboard Spark Plugs
• UPC: 037551000180
• Weight: 0.15 pounds

Frequently Asked Questions

What is the Champion RN12YC Copper Plus Marine Spark Plug used for? The Champion RN12YC Copper Plus Marine Spark Plug, part number CCH404, is used as a replacement ignition spark plug for marine engines, delivering the spark that ignites the air-fuel mixture in the combustion chamber.

Does the CCH404 spark plug resist corrosion? Yes, the CCH404 has a shell finished with Champion's patented TinTac and ULTRASEAL coatings, which are designed to provide maximum corrosion resistance in a marine environment.

What material is the electrode made of? A copper core electrode is used in the Champion RN12YC (CCH404), which increases conductivity and allows for accurate control of heat range for longer plug life.

Will this spark plug help with engine electrical interference? The CCH404 includes Champion's patented SAC-9 semiconductor, which provides maximum EMI and RFI suppression to reduce ignition interference with onboard electronics.

What engine category is the Champion CCH404 spark plug intended for? The Champion RN12YC Copper Plus spark plug, CCH404, is categorized for Chrysler inboard marine engine applications.

Is the Champion RN12YC a genuine Champion product? Yes, the RN12YC Copper Plus Marine Spark Plug (CCH404) is manufactured by Champion and built to ISO and SAE standards for proven, OEM-quality performance.

How much does the CCH404 spark plug weigh? The Champion RN12YC Copper Plus Marine Spark Plug (CCH404) weighs 0.15 pounds.

Why choose a Copper Plus spark plug over a standard plug? Copper Plus construction, used in the Champion RN12YC (CCH404), uses a copper core electrode for more precise heat range control and better overall wear resistance than a standard non-Copper Plus plug.

Is the RN12YC designed to handle heavy engine loads? Yes, the Champion CCH404 spark plug is specifically designed to resist overheating under heavy engine loads, which is common in marine applications.

What is the UPC for the Champion CCH404 spark plug? The Champion RN12YC Copper Plus Marine Spark Plug carries UPC 037551000180.

Can the CCH404 spark plug improve engine longevity? The copper core electrode in the Champion RN12YC (CCH404) allows for accurate heat range control, which supports good overall wear and helps extend plug life under continuous marine use.