{"product_id":"champion-rn12yc-copper-plus-marine-spark-plug-cch404","title":"Champion RN12YC Copper Plus Marine Spark Plug, CCH404","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Champion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e CCH404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChampion Spark Plug Number:\u003c\/strong\u003e 404\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Copper Plus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrode Material:\u003c\/strong\u003e Copper core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShell Coating:\u003c\/strong\u003e TinTac and ULTRASEAL corrosion-resistant coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterference Suppression:\u003c\/strong\u003e SAC-9 semiconductor for EMI and RFI suppression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e Built to ISO and SAE standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Chrysler Inboard Spark Plugs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 037551000180\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.15 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Champion RN12YC Copper Plus Marine Spark Plug used for?\u003c\/strong\u003e 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the CCH404 spark plug resist corrosion?\u003c\/strong\u003e 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the electrode made of?\u003c\/strong\u003e 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this spark plug help with engine electrical interference?\u003c\/strong\u003e The CCH404 includes Champion's patented SAC-9 semiconductor, which provides maximum EMI and RFI suppression to reduce ignition interference with onboard electronics.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engine category is the Champion CCH404 spark plug intended for?\u003c\/strong\u003e The Champion RN12YC Copper Plus spark plug, CCH404, is categorized for Chrysler inboard marine engine applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Champion RN12YC a genuine Champion product?\u003c\/strong\u003e 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the CCH404 spark plug weigh?\u003c\/strong\u003e The Champion RN12YC Copper Plus Marine Spark Plug (CCH404) weighs 0.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy choose a Copper Plus spark plug over a standard plug?\u003c\/strong\u003e 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the RN12YC designed to handle heavy engine loads?\u003c\/strong\u003e Yes, the Champion CCH404 spark plug is specifically designed to resist overheating under heavy engine loads, which is common in marine applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Champion CCH404 spark plug?\u003c\/strong\u003e The Champion RN12YC Copper Plus Marine Spark Plug carries UPC 037551000180.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the CCH404 spark plug improve engine longevity?\u003c\/strong\u003e 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.\u003c\/p\u003e","brand":"Champion Spark Plugs","offers":[{"title":"Default Title","offer_id":49027463217371,"sku":"CHA-RN12YC","price":2.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/RN12YC__85376.1722500928.500.750.jpg?v=1785163562","url":"https:\/\/www.goodvibesmarina.com\/products\/champion-rn12yc-copper-plus-marine-spark-plug-cch404","provider":"Good Vibes Marina","version":"1.0","type":"link"}