{"product_id":"champion-copper-plus-spark-plug-rf10c-part-number-129","title":"Champion Copper Plus Spark Plug RF10C – Part Number 129","description":"\u003cp data-start=\"137\" data-end=\"503\"\u003e\u003cstrong data-start=\"137\" data-end=\"153\"\u003eDescription:\u003c\/strong\u003e\u003cbr data-start=\"153\" data-end=\"156\"\u003eThe \u003cstrong data-start=\"160\" data-end=\"213\"\u003eChampion Copper Plus RF10C Spark Plug (Part #129)\u003c\/strong\u003e is engineered to deliver dependable ignition performance, consistent heat control, and long service life. Featuring a \u003cstrong data-start=\"332\" data-end=\"364\"\u003ecopper core center electrode\u003c\/strong\u003e, this spark plug provides improved conductivity and efficient heat dissipation to help maintain optimal firing conditions and reduce wear.\u003c\/p\u003e\n\u003cp data-start=\"505\" data-end=\"958\"\u003eAs part of the \u003cstrong data-start=\"520\" data-end=\"549\"\u003eChampion Copper Plus line\u003c\/strong\u003e, the RF10C is designed as a \u003cstrong data-start=\"578\" data-end=\"611\"\u003estandard OE-style replacement\u003c\/strong\u003e for many classic and heavy-duty automotive applications. Its \u003cstrong data-start=\"673\" data-end=\"692\"\u003eresistor design\u003c\/strong\u003e helps reduce ignition interference for smoother engine operation, while the \u003cstrong data-start=\"769\" data-end=\"805\"\u003ecorrosion-resistant construction\u003c\/strong\u003e ensures durability in demanding environments. Manufactured to \u003cstrong data-start=\"868\" data-end=\"893\"\u003eISO and SAE standards\u003c\/strong\u003e, it offers reliable performance across a wide range of vehicles.\u003c\/p\u003e\n\u003cp data-start=\"960\" data-end=\"1093\"\u003eWith a \u003cstrong data-start=\"967\" data-end=\"1014\"\u003etapered seat and non-removable terminal nut\u003c\/strong\u003e, the RF10C provides a secure installation and dependable ignition performance.\u003c\/p\u003e\n\u003cp data-start=\"1095\" data-end=\"1108\"\u003e\u003cstrong data-start=\"1095\" data-end=\"1108\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1110\" data-end=\"1508\"\u003e\n\u003cli data-section-id=\"35w7ye\" data-start=\"1110\" data-end=\"1174\"\u003e\n\u003cp data-start=\"1112\" data-end=\"1174\"\u003eCopper Plus design for dependable performance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xzx4ee\" data-start=\"1175\" data-end=\"1246\"\u003e\n\u003cp data-start=\"1177\" data-end=\"1246\"\u003eCopper core center electrode improves conductivity and heat control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"lbovjn\" data-start=\"1247\" data-end=\"1303\"\u003e\n\u003cp data-start=\"1249\" data-end=\"1303\"\u003eResistor design helps suppress ignition interference\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"so45rg\" data-start=\"1304\" data-end=\"1359\"\u003e\n\u003cp data-start=\"1306\" data-end=\"1359\"\u003eSuperior corrosion resistance for long service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1unlck2\" data-start=\"1360\" data-end=\"1414\"\u003e\n\u003cp data-start=\"1362\" data-end=\"1414\"\u003eAccurate heat range control helps extend plug life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"d7rqmf\" data-start=\"1415\" data-end=\"1472\"\u003e\n\u003cp data-start=\"1417\" data-end=\"1472\"\u003eBuilt to ISO and SAE standards for proven performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vcxg6r\" data-start=\"1473\" data-end=\"1508\"\u003e\n\u003cp data-start=\"1475\" data-end=\"1508\"\u003eOE-style replacement spark plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1510\" data-end=\"1537\"\u003e\u003cstrong data-start=\"1510\" data-end=\"1537\"\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1539\" data-end=\"2463\"\u003e\n\u003cli data-section-id=\"39d7i4\" data-start=\"1539\" data-end=\"1563\"\u003e\n\u003cp data-start=\"1541\" data-end=\"1563\"\u003e\u003cstrong data-start=\"1541\" data-end=\"1557\"\u003ePart number:\u003c\/strong\u003e 129\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1773u1e\" data-start=\"1564\" data-end=\"1588\"\u003e\n\u003cp data-start=\"1566\" data-end=\"1588\"\u003e\u003cstrong data-start=\"1566\" data-end=\"1580\"\u003ePlug type:\u003c\/strong\u003e RF10C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1oa7aey\" data-start=\"1589\" data-end=\"1633\"\u003e\n\u003cp data-start=\"1591\" data-end=\"1633\"\u003e\u003cstrong data-start=\"1591\" data-end=\"1610\"\u003eClassification:\u003c\/strong\u003e Champion Copper Plus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"wrzwbe\" data-start=\"1634\" data-end=\"1674\"\u003e\n\u003cp data-start=\"1636\" data-end=\"1674\"\u003e\u003cstrong data-start=\"1636\" data-end=\"1651\"\u003eGrade type:\u003c\/strong\u003e Standard Replacement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6glo9i\" data-start=\"1675\" data-end=\"1711\"\u003e\n\u003cp data-start=\"1677\" data-end=\"1711\"\u003e\u003cstrong data-start=\"1677\" data-end=\"1698\"\u003ePart description:\u003c\/strong\u003e Spark Plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11w1f37\" data-start=\"1712\" data-end=\"1757\"\u003e\n\u003cp data-start=\"1714\" data-end=\"1757\"\u003e\u003cstrong data-start=\"1714\" data-end=\"1748\"\u003eCenter electrode tip material:\u003c\/strong\u003e Copper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13nkvqv\" data-start=\"1758\" data-end=\"1799\"\u003e\n\u003cp data-start=\"1760\" data-end=\"1799\"\u003e\u003cstrong data-start=\"1760\" data-end=\"1788\"\u003eCenter electrode design:\u003c\/strong\u003e Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1rch90g\" data-start=\"1800\" data-end=\"1842\"\u003e\n\u003cp data-start=\"1802\" data-end=\"1842\"\u003e\u003cstrong data-start=\"1802\" data-end=\"1832\"\u003eCenter electrode diameter:\u003c\/strong\u003e 0.11 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"62e7wx\" data-start=\"1843\" data-end=\"1897\"\u003e\n\u003cp data-start=\"1845\" data-end=\"1897\"\u003e\u003cstrong data-start=\"1845\" data-end=\"1875\"\u003eGround electrode material:\u003c\/strong\u003e Nickel copper alloy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tnugxy\" data-start=\"1898\" data-end=\"1944\"\u003e\n\u003cp data-start=\"1900\" data-end=\"1944\"\u003e\u003cstrong data-start=\"1900\" data-end=\"1935\"\u003eGround electrode core material:\u003c\/strong\u003e Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15q7wkw\" data-start=\"1945\" data-end=\"1990\"\u003e\n\u003cp data-start=\"1947\" data-end=\"1990\"\u003e\u003cstrong data-start=\"1947\" data-end=\"1981\"\u003eGround electrode tip material:\u003c\/strong\u003e Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ctw1ay\" data-start=\"1991\" data-end=\"2027\"\u003e\n\u003cp data-start=\"1993\" data-end=\"2027\"\u003e\u003cstrong data-start=\"1993\" data-end=\"2023\"\u003eGround electrode quantity:\u003c\/strong\u003e 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qdr473\" data-start=\"2028\" data-end=\"2068\"\u003e\n\u003cp data-start=\"2030\" data-end=\"2068\"\u003e\u003cstrong data-start=\"2030\" data-end=\"2047\"\u003ePre-gap size:\u003c\/strong\u003e 0.030 in \/ 0.78 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8h36c1\" data-start=\"2069\" data-end=\"2107\"\u003e\n\u003cp data-start=\"2071\" data-end=\"2107\"\u003e\u003cstrong data-start=\"2071\" data-end=\"2084\"\u003eHex size:\u003c\/strong\u003e 0.813 in \/ 20.650 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kmm9ay\" data-start=\"2108\" data-end=\"2134\"\u003e\n\u003cp data-start=\"2110\" data-end=\"2134\"\u003e\u003cstrong data-start=\"2110\" data-end=\"2124\"\u003eSeat type:\u003c\/strong\u003e Tapered\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bioko9\" data-start=\"2135\" data-end=\"2158\"\u003e\n\u003cp data-start=\"2137\" data-end=\"2158\"\u003e\u003cstrong data-start=\"2137\" data-end=\"2147\"\u003eReach:\u003c\/strong\u003e 0.429 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1i8exyc\" data-start=\"2159\" data-end=\"2204\"\u003e\n\u003cp data-start=\"2161\" data-end=\"2204\"\u003e\u003cstrong data-start=\"2161\" data-end=\"2181\"\u003eThread diameter:\u003c\/strong\u003e 18.000 mm \/ 0.709 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ns4l6a\" data-start=\"2205\" data-end=\"2231\"\u003e\n\u003cp data-start=\"2207\" data-end=\"2231\"\u003e\u003cstrong data-start=\"2207\" data-end=\"2225\"\u003eResistor type:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"h5n4dt\" data-start=\"2232\" data-end=\"2259\"\u003e\n\u003cp data-start=\"2234\" data-end=\"2259\"\u003e\u003cstrong data-start=\"2234\" data-end=\"2254\"\u003eWasher included:\u003c\/strong\u003e No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vfrouc\" data-start=\"2260\" data-end=\"2311\"\u003e\n\u003cp data-start=\"2262\" data-end=\"2311\"\u003e\u003cstrong data-start=\"2262\" data-end=\"2291\"\u003eElectrical terminal type:\u003c\/strong\u003e Non-removable nut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15ruceb\" data-start=\"2312\" data-end=\"2347\"\u003e\n\u003cp data-start=\"2314\" data-end=\"2347\"\u003e\u003cstrong data-start=\"2314\" data-end=\"2342\"\u003eManufacturer heat range:\u003c\/strong\u003e 10\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3trmj0\" data-start=\"2348\" data-end=\"2367\"\u003e\n\u003cp data-start=\"2350\" data-end=\"2367\"\u003e\u003cstrong data-start=\"2350\" data-end=\"2362\"\u003eIndexed:\u003c\/strong\u003e No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"pc9sr7\" data-start=\"2368\" data-end=\"2401\"\u003e\n\u003cp data-start=\"2370\" data-end=\"2401\"\u003e\u003cstrong data-start=\"2370\" data-end=\"2391\"\u003eInstalled height:\u003c\/strong\u003e 2.27 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vf3pca\" data-start=\"2402\" data-end=\"2432\"\u003e\n\u003cp data-start=\"2404\" data-end=\"2432\"\u003e\u003cstrong data-start=\"2404\" data-end=\"2423\"\u003eTaper diameter:\u003c\/strong\u003e 0.4 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"g25mbu\" data-start=\"2433\" data-end=\"2463\"\u003e\n\u003cp data-start=\"2435\" data-end=\"2463\"\u003e\u003cstrong data-start=\"2435\" data-end=\"2458\"\u003eSubject to Prop 65:\u003c\/strong\u003e No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2465\" data-end=\"2583\"\u003e\u003cstrong data-start=\"2465\" data-end=\"2477\"\u003eFitment:\u003c\/strong\u003e\u003cbr data-start=\"2477\" data-end=\"2480\"\u003eThe RF10C spark plug fits a wide range of classic and heavy-duty vehicles including select models from:\u003c\/p\u003e\n\u003cul data-start=\"2585\" data-end=\"2793\"\u003e\n\u003cli data-section-id=\"1xxlxq5\" data-start=\"2585\" data-end=\"2669\"\u003e\n\u003cp data-start=\"2587\" data-end=\"2669\"\u003e\u003cstrong data-start=\"2587\" data-end=\"2596\"\u003eDodge\u003c\/strong\u003e – D100, D200, D250, D300, D350, Ram 3500, W100, W200, W250, W300, W350\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"mmglyu\" data-start=\"2670\" data-end=\"2793\"\u003e\n\u003cp data-start=\"2672\" data-end=\"2793\"\u003e\u003cstrong data-start=\"2672\" data-end=\"2680\"\u003eFord\u003c\/strong\u003e – Econoline, E-Series vans, F-100, F-250, F-350, F-500, F-600, F-700, Ranchero, Del Rio Wagon, P-Series trucks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2795\" data-end=\"3013\"\u003eThese applications include engines such as \u003cstrong data-start=\"2838\" data-end=\"2926\"\u003eFord 240\/300 inline-six, Ford FE-series V8 engines, and Dodge 318 and 360 V8 engines\u003c\/strong\u003e, among others. Always confirm compatibility with your vehicle’s engine specifications.\u003c\/p\u003e","brand":"CHAMPION","offers":[{"title":"Default Title","offer_id":46280891662535,"sku":"ELE1938","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-03-11170013.png?v=1773273486","url":"https:\/\/mainstreeteshop.com\/products\/champion-copper-plus-spark-plug-rf10c-part-number-129","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}