{"product_id":"butom-rc12yc-spark-plug-replacement-for-champion-rc12yc-direct-fit-for-small-engines-correct-thread-heat-range","title":"Butom RC12YC Spark Plug replacement for Champion RC12YC — direct-fit for small engines, correct thread \u0026 heat range","description":"\u003cp\u003e\u003cstrong\u003eButom RC12YC is a direct-fit ignition spark plug engineered to replace Champion RC12YC and a wide range of OEM spark plug part numbers for small engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your lawn mower, garden tractor, or small-engine equipment needs a reliable spark plug replacement, the Butom RC12YC offers the correct form and function for many popular machines. This plug is specified as a substitute for Champion RC12YC and compatible with several John Deere, Kohler, and other OEM part numbers, helping you restore consistent starting and operation when the original plug is worn or fouled.\u003c\/p\u003e\n\n\u003ch3\u003eWhich original part numbers does this spark plug replace?\u003c\/h3\u003e\n\u003cp\u003eThe Butom RC12YC is manufactured to match the thread, reach, and heat range common to the Champion RC12YC family so it fits interchangeably in equipment that accepts those specs. It lists compatibility with numerous OEM references to make cross-referencing easier when ordering parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for Champion RC12YC and JD M78543\u003c\/li\u003e\n  \u003cli\u003eCross-references: BS 491055, 491055S, 692051, 792015, 72347GS, 805015, 499608, 491055T, 694385, 5066\u003c\/li\u003e\n  \u003cli\u003eKohler-compatible codes: 25 132 12-S, 25 132 12-A, 24 132 01-S, 12 132 02-S, 12 132 02, and 531308128\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I confirm fit before I buy?\u003c\/h3\u003e\n\u003cp\u003eAlways verify the model and part number of your equipment to ensure compatibility; physical dimensions and thread specifications vary between plugs. If you still have the original plug, compare its markings and measurements to the Butom RC12YC specifications or consult your equipment manual.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck the original plug’s stamped part number and heat range\u003c\/li\u003e\n  \u003cli\u003eConfirm thread size and reach match your engine’s requirements\u003c\/li\u003e\n  \u003cli\u003eUse listed OEM cross-reference numbers to validate compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance can I expect from this replacement plug?\u003c\/h3\u003e\n\u003cp\u003eThe Butom RC12YC is designed for dependable ignition and predictable operation comparable to the original Champion specification. It helps restore starting reliability and steady running when installed correctly in compatible engines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores factory-fit ignition characteristics when matched properly\u003c\/li\u003e\n  \u003cli\u003eSupports consistent combustion and cranking performance\u003c\/li\u003e\n  \u003cli\u003eWorks across a range of small engines from lawn and garden equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and maintain the spark plug?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: remove the old plug, gap the new plug to the manufacturer’s recommended specification, and torque to the engine maker’s value. Routine inspection and replacement when fouled or worn keeps performance optimal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSet the electrode gap per your engine manual before installation\u003c\/li\u003e\n  \u003cli\u003eHand-start the thread, then tighten to the specified torque\u003c\/li\u003e\n  \u003cli\u003eInspect spark plug condition during seasonal service intervals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Butom RC12YC is aimed at homeowners, landscapers, and small-engine technicians who need a reliable, cost-effective replacement for Champion RC12YC and equivalent OEM plugs. If you maintain lawn mowers, garden tractors, pressure washers, or other small engines that refer to the listed part numbers, this plug is a practical spare or service part to keep equipment running smoothly. Always match model numbers and thread specifications before installation to ensure proper fit and safe operation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this plug compatible with Champion RC12YC?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Butom RC12YC is made as a direct replacement compatible with Champion RC12YC specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this for Kohler engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Possibly; it cross-references Kohler codes like 25 132 12-S and 531308128. Confirm your engine’s part number first.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Butom","offers":[{"title":"Default Title","offer_id":54192922886328,"sku":"B07F84H8XY","price":41.04,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0636\/7416\/files\/butom-rc12yc-front-packaging.jpg?v=1790554547","url":"https:\/\/canadianlawn.ca\/products\/butom-rc12yc-spark-plug-replacement-for-champion-rc12yc-direct-fit-for-small-engines-correct-thread-heat-range","provider":"Canadian Lawn","version":"1.0","type":"link"}