{"product_id":"champion-copper-plus-spark-plug-408","title":"Champion Copper Plus Spark Plug 408","description":"\u003ch2 data-section-id=\"rmw5tv\" data-start=\"239\" data-end=\"253\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"254\" data-end=\"615\"\u003eThe \u003cstrong data-start=\"258\" data-end=\"297\"\u003eChampion Copper Plus Spark Plug 408\u003c\/strong\u003e is engineered to deliver dependable ignition performance and long service life across a wide range of automotive and engine applications. Featuring a \u003cstrong data-start=\"448\" data-end=\"480\"\u003ecopper core center electrode\u003c\/strong\u003e, this spark plug provides increased conductivity and accurate heat control to support consistent combustion and reliable overall wear.\u003c\/p\u003e\n\u003cp data-start=\"617\" data-end=\"966\"\u003eAs part of the \u003cstrong data-start=\"632\" data-end=\"656\"\u003eChampion Copper Plus\u003c\/strong\u003e line, the \u003cstrong data-start=\"667\" data-end=\"677\"\u003eRS14YC\u003c\/strong\u003e is built for durable replacement performance with \u003cstrong data-start=\"728\" data-end=\"761\"\u003esuperior corrosion resistance\u003c\/strong\u003e and construction designed to meet \u003cstrong data-start=\"796\" data-end=\"821\"\u003eISO and SAE standards\u003c\/strong\u003e. The copper core design helps maintain proper heat range control for longer service life and stable engine operation in compatible applications.\u003c\/p\u003e\n\u003cp data-start=\"968\" data-end=\"1181\"\u003eWith a \u003cstrong data-start=\"975\" data-end=\"991\"\u003etapered seat\u003c\/strong\u003e, \u003cstrong data-start=\"993\" data-end=\"1012\"\u003eresistor design\u003c\/strong\u003e, and \u003cstrong data-start=\"1018\" data-end=\"1059\"\u003efactory pre-gap of 0.045 in (1.13 mm)\u003c\/strong\u003e, this spark plug is a dependable replacement option for select passenger vehicles, trucks, marine engines, and equipment.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1d7mrtu\" data-start=\"1183\" data-end=\"1194\"\u003eFeatures\u003c\/h2\u003e\n\u003cul data-start=\"1195\" data-end=\"1605\"\u003e\n\u003cli data-section-id=\"1spuydi\" data-start=\"1195\" data-end=\"1270\"\u003e\n\u003cp data-start=\"1197\" data-end=\"1270\"\u003e\u003cstrong data-start=\"1197\" data-end=\"1229\"\u003eCopper core center electrode\u003c\/strong\u003e improves conductivity and heat control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7l4ebr\" data-start=\"1271\" data-end=\"1332\"\u003e\n\u003cp data-start=\"1273\" data-end=\"1332\"\u003eBuilt to \u003cstrong data-start=\"1282\" data-end=\"1307\"\u003eISO and SAE standards\u003c\/strong\u003e for proven performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"qk3uah\" data-start=\"1333\" data-end=\"1410\"\u003e\n\u003cp data-start=\"1335\" data-end=\"1410\"\u003e\u003cstrong data-start=\"1335\" data-end=\"1359\"\u003eChampion Copper Plus\u003c\/strong\u003e design for dependable performance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"37gif5\" data-start=\"1411\" data-end=\"1474\"\u003e\n\u003cp data-start=\"1413\" data-end=\"1474\"\u003e\u003cstrong data-start=\"1413\" data-end=\"1446\"\u003eSuperior corrosion resistance\u003c\/strong\u003e for extended service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15em05z\" data-start=\"1475\" data-end=\"1536\"\u003e\n\u003cp data-start=\"1477\" data-end=\"1536\"\u003e\u003cstrong data-start=\"1477\" data-end=\"1508\"\u003eAccurate heat range control\u003c\/strong\u003e supports longer plug life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"eysdk3\" data-start=\"1537\" data-end=\"1605\"\u003e\n\u003cp data-start=\"1539\" data-end=\"1605\"\u003e\u003cstrong data-start=\"1539\" data-end=\"1558\"\u003eResistor design\u003c\/strong\u003e helps maintain reliable ignition performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1607\" data-end=\"1624\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-start=\"1625\" data-end=\"2553\"\u003e\n\u003cli data-section-id=\"9ty3qu\" data-start=\"1625\" data-end=\"1644\"\u003e\n\u003cp data-start=\"1627\" data-end=\"1644\"\u003eBrand: Champion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jix7kq\" data-start=\"1645\" data-end=\"1665\"\u003e\n\u003cp data-start=\"1647\" data-end=\"1665\"\u003ePart Number: 408\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xswkxm\" data-start=\"1666\" data-end=\"1687\"\u003e\n\u003cp data-start=\"1668\" data-end=\"1687\"\u003ePlug Type: RS14YC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"iqia62\" data-start=\"1688\" data-end=\"1728\"\u003e\n\u003cp data-start=\"1690\" data-end=\"1728\"\u003eClassification: Champion Copper Plus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9kxcai\" data-start=\"1729\" data-end=\"1765\"\u003e\n\u003cp data-start=\"1731\" data-end=\"1765\"\u003eGrade Type: Standard Replacement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qpht86\" data-start=\"1766\" data-end=\"1798\"\u003e\n\u003cp data-start=\"1768\" data-end=\"1798\"\u003ePart Description: Spark Plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1w81wf2\" data-start=\"1799\" data-end=\"1840\"\u003e\n\u003cp data-start=\"1801\" data-end=\"1840\"\u003eCenter Electrode Tip Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"42bjef\" data-start=\"1841\" data-end=\"1878\"\u003e\n\u003cp data-start=\"1843\" data-end=\"1878\"\u003eCenter Electrode Design: Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19wox35\" data-start=\"1879\" data-end=\"1917\"\u003e\n\u003cp data-start=\"1881\" data-end=\"1917\"\u003eCenter Electrode Diameter: 0.10 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tcgx5m\" data-start=\"1918\" data-end=\"1950\"\u003e\n\u003cp data-start=\"1920\" data-end=\"1950\"\u003eGround Electrode Quantity: 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"psgbmu\" data-start=\"1951\" data-end=\"1993\"\u003e\n\u003cp data-start=\"1953\" data-end=\"1993\"\u003eGround Electrode Core Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"es7l3k\" data-start=\"1994\" data-end=\"2035\"\u003e\n\u003cp data-start=\"1996\" data-end=\"2035\"\u003eGround Electrode Tip Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sunzm9\" data-start=\"2036\" data-end=\"2086\"\u003e\n\u003cp data-start=\"2038\" data-end=\"2086\"\u003eGround Electrode Material: Nickel Copper Alloy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rrg4fl\" data-start=\"2087\" data-end=\"2123\"\u003e\n\u003cp data-start=\"2089\" data-end=\"2123\"\u003ePre-Gap Size: 0.045 in \/ 1.13 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ur7zdr\" data-start=\"2124\" data-end=\"2158\"\u003e\n\u003cp data-start=\"2126\" data-end=\"2158\"\u003eHex Size: 0.625 in \/ 15.880 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"m3cn6f\" data-start=\"2159\" data-end=\"2188\"\u003e\n\u003cp data-start=\"2161\" data-end=\"2188\"\u003eInsulator Height: 0.06 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1eukqmf\" data-start=\"2189\" data-end=\"2220\"\u003e\n\u003cp data-start=\"2191\" data-end=\"2220\"\u003eManufacturer Heat Range: 14\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1sl50u2\" data-start=\"2221\" data-end=\"2243\"\u003e\n\u003cp data-start=\"2223\" data-end=\"2243\"\u003eSeat Type: Tapered\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13v50m9\" data-start=\"2244\" data-end=\"2263\"\u003e\n\u003cp data-start=\"2246\" data-end=\"2263\"\u003eReach: 0.689 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ycvbgn\" data-start=\"2264\" data-end=\"2305\"\u003e\n\u003cp data-start=\"2266\" data-end=\"2305\"\u003eThread Diameter: 0.551 in \/ 14.000 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9nbfma\" data-start=\"2306\" data-end=\"2328\"\u003e\n\u003cp data-start=\"2308\" data-end=\"2328\"\u003eResistor Type: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jw434h\" data-start=\"2329\" data-end=\"2352\"\u003e\n\u003cp data-start=\"2331\" data-end=\"2352\"\u003eWasher Included: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9kzcjo\" data-start=\"2353\" data-end=\"2400\"\u003e\n\u003cp data-start=\"2355\" data-end=\"2400\"\u003eElectrical Terminal Type: Non-Removable Nut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cf799m\" data-start=\"2401\" data-end=\"2418\"\u003e\n\u003cp data-start=\"2403\" data-end=\"2418\"\u003eHex Type: Hex\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nt2tzg\" data-start=\"2419\" data-end=\"2434\"\u003e\n\u003cp data-start=\"2421\" data-end=\"2434\"\u003eIndexed: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1wvxtmb\" data-start=\"2435\" data-end=\"2464\"\u003e\n\u003cp data-start=\"2437\" data-end=\"2464\"\u003eInstalled Height: 2.05 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9uyfdh\" data-start=\"2465\" data-end=\"2498\"\u003e\n\u003cp data-start=\"2467\" data-end=\"2498\"\u003eInsulator Projection: 0.06 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gel3q1\" data-start=\"2499\" data-end=\"2526\"\u003e\n\u003cp data-start=\"2501\" data-end=\"2526\"\u003eTaper Diameter: 0.25 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"198zmx6\" data-start=\"2527\" data-end=\"2553\"\u003e\n\u003cp data-start=\"2529\" data-end=\"2553\"\u003eSubject to Prop 65: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1dixaz0\" data-start=\"2555\" data-end=\"2565\"\u003eFitment\u003c\/h2\u003e\n\u003cul data-start=\"2566\" data-end=\"3055\"\u003e\n\u003cli data-section-id=\"11zwnq9\" data-start=\"2566\" data-end=\"2750\"\u003e\n\u003cp data-start=\"2568\" data-end=\"2750\"\u003eFits a wide range of \u003cstrong data-start=\"2589\" data-end=\"2675\"\u003eBuick, Chevrolet, Ford, Mazda, Mercedes-Benz, Mercury, Oldsmobile, Pontiac, Saturn\u003c\/strong\u003e, and select \u003cstrong data-start=\"2688\" data-end=\"2734\"\u003eCrusader Marine, John Deere, and Cub Cadet\u003c\/strong\u003e applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1pmxrzg\" data-start=\"2751\" data-end=\"2924\"\u003e\n\u003cp data-start=\"2753\" data-end=\"2924\"\u003eCommon applications include select \u003cstrong data-start=\"2788\" data-end=\"2841\"\u003eGM 2.2L L4, 3.5L V6, 3.8L V6, and 3.9L V6 engines\u003c\/strong\u003e, along with select \u003cstrong data-start=\"2861\" data-end=\"2921\"\u003eFord 2.3L L4, 2.8L\/2.9L V6, 3.8L V6, and 5.8L V8 engines\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1x2qtrn\" data-start=\"2925\" data-end=\"3055\"\u003e\n\u003cp data-start=\"2927\" data-end=\"3055\"\u003ePreserve the full application table fro\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHAMPION","offers":[{"title":"Default Title","offer_id":46285646594247,"sku":"ELE1974","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-03-12143156.png?v=1773350986","url":"https:\/\/mainstreeteshop.com\/products\/champion-copper-plus-spark-plug-408","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}