{"product_id":"champion-copper-plus-spark-plug-400","title":"Champion Copper Plus Spark Plug 400","description":"\u003ch2 data-section-id=\"rmw5tv\" data-start=\"216\" data-end=\"230\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"231\" data-end=\"607\"\u003eThe \u003cstrong data-start=\"235\" data-end=\"274\"\u003eChampion Copper Plus Spark Plug 400\u003c\/strong\u003e is engineered to deliver dependable ignition performance and reliable service life across a wide range of automotive, marine, and small engine applications. Featuring a \u003cstrong data-start=\"444\" data-end=\"476\"\u003ecopper core center electrode\u003c\/strong\u003e, this spark plug provides increased conductivity and accurate heat control to support consistent combustion and good overall wear.\u003c\/p\u003e\n\u003cp data-start=\"609\" data-end=\"984\"\u003eAs part of the \u003cstrong data-start=\"624\" data-end=\"661\"\u003eChampion Copper Plus Small Engine\u003c\/strong\u003e line, the \u003cstrong data-start=\"672\" data-end=\"681\"\u003eRV9YC\u003c\/strong\u003e is designed as an \u003cstrong data-start=\"700\" data-end=\"728\"\u003eOE-type replacement plug\u003c\/strong\u003e that resists fouling and provides durable ignition performance in demanding environments. Its copper core construction helps maintain proper heat range control for longer life, while \u003cstrong data-start=\"912\" data-end=\"945\"\u003esuperior corrosion resistance\u003c\/strong\u003e supports reliable operation over time.\u003c\/p\u003e\n\u003cp data-start=\"986\" data-end=\"1231\"\u003eBuilt to \u003cstrong data-start=\"995\" data-end=\"1020\"\u003eISO and SAE standards\u003c\/strong\u003e, this spark plug features a \u003cstrong data-start=\"1049\" data-end=\"1065\"\u003etapered seat\u003c\/strong\u003e, \u003cstrong data-start=\"1067\" data-end=\"1093\"\u003eremovable nut terminal\u003c\/strong\u003e, \u003cstrong data-start=\"1095\" data-end=\"1114\"\u003eresistor design\u003c\/strong\u003e, and a \u003cstrong data-start=\"1122\" data-end=\"1163\"\u003efactory pre-gap of 0.035 in (0.89 mm)\u003c\/strong\u003e for dependable installation and consistent replacement performance.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1d7mrtu\" data-start=\"1233\" data-end=\"1244\"\u003eFeatures\u003c\/h2\u003e\n\u003cul data-start=\"1245\" data-end=\"1650\"\u003e\n\u003cli data-section-id=\"1spuydi\" data-start=\"1245\" data-end=\"1320\"\u003e\n\u003cp data-start=\"1247\" data-end=\"1320\"\u003e\u003cstrong data-start=\"1247\" data-end=\"1279\"\u003eCopper core center electrode\u003c\/strong\u003e improves conductivity and heat control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10xx285\" data-start=\"1321\" data-end=\"1389\"\u003e\n\u003cp data-start=\"1323\" data-end=\"1389\"\u003e\u003cstrong data-start=\"1323\" data-end=\"1351\"\u003eOE-type replacement plug\u003c\/strong\u003e for dependable ignition performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1d40178\" data-start=\"1390\" data-end=\"1450\"\u003e\n\u003cp data-start=\"1392\" data-end=\"1450\"\u003e\u003cstrong data-start=\"1392\" data-end=\"1411\"\u003eResists fouling\u003c\/strong\u003e for more consistent engine operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"pe45yk\" data-start=\"1451\" data-end=\"1510\"\u003e\n\u003cp data-start=\"1453\" data-end=\"1510\"\u003e\u003cstrong data-start=\"1453\" data-end=\"1486\"\u003eSuperior corrosion resistance\u003c\/strong\u003e for long service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7l4ebr\" data-start=\"1511\" data-end=\"1572\"\u003e\n\u003cp data-start=\"1513\" data-end=\"1572\"\u003eBuilt to \u003cstrong data-start=\"1522\" data-end=\"1547\"\u003eISO and SAE standards\u003c\/strong\u003e for proven performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3bbr3f\" data-start=\"1573\" data-end=\"1650\"\u003e\n\u003cp data-start=\"1575\" data-end=\"1650\"\u003e\u003cstrong data-start=\"1575\" data-end=\"1612\"\u003eChampion Copper Plus Small Engine\u003c\/strong\u003e design for reliable replacement use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1652\" data-end=\"1669\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-start=\"1670\" data-end=\"2605\"\u003e\n\u003cli data-section-id=\"9ty3qu\" data-start=\"1670\" data-end=\"1689\"\u003e\n\u003cp data-start=\"1672\" data-end=\"1689\"\u003eBrand: Champion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jix0uq\" data-start=\"1690\" data-end=\"1710\"\u003e\n\u003cp data-start=\"1692\" data-end=\"1710\"\u003ePart Number: 400\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cxvbj7\" data-start=\"1711\" data-end=\"1731\"\u003e\n\u003cp data-start=\"1713\" data-end=\"1731\"\u003ePlug Type: RV9YC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"uv4fwr\" data-start=\"1732\" data-end=\"1785\"\u003e\n\u003cp data-start=\"1734\" data-end=\"1785\"\u003eClassification: Champion Copper Plus Small Engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9kxcai\" data-start=\"1786\" data-end=\"1822\"\u003e\n\u003cp data-start=\"1788\" data-end=\"1822\"\u003eGrade Type: Standard Replacement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qpht86\" data-start=\"1823\" data-end=\"1855\"\u003e\n\u003cp data-start=\"1825\" data-end=\"1855\"\u003ePart Description: Spark Plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1w81wf2\" data-start=\"1856\" data-end=\"1897\"\u003e\n\u003cp data-start=\"1858\" data-end=\"1897\"\u003eCenter Electrode Tip Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"42bjef\" data-start=\"1898\" data-end=\"1935\"\u003e\n\u003cp data-start=\"1900\" data-end=\"1935\"\u003eCenter Electrode Design: Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19wox35\" data-start=\"1936\" data-end=\"1974\"\u003e\n\u003cp data-start=\"1938\" data-end=\"1974\"\u003eCenter Electrode Diameter: 0.10 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tcgx5m\" data-start=\"1975\" data-end=\"2007\"\u003e\n\u003cp data-start=\"1977\" data-end=\"2007\"\u003eGround Electrode Quantity: 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"psgbmu\" data-start=\"2008\" data-end=\"2050\"\u003e\n\u003cp data-start=\"2010\" data-end=\"2050\"\u003eGround Electrode Core Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"es7l3k\" data-start=\"2051\" data-end=\"2092\"\u003e\n\u003cp data-start=\"2053\" data-end=\"2092\"\u003eGround Electrode Tip Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sunzm9\" data-start=\"2093\" data-end=\"2143\"\u003e\n\u003cp data-start=\"2095\" data-end=\"2143\"\u003eGround Electrode Material: Nickel Copper Alloy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4yhbn8\" data-start=\"2144\" data-end=\"2180\"\u003e\n\u003cp data-start=\"2146\" data-end=\"2180\"\u003ePre-Gap Size: 0.035 in \/ 0.89 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ur7zdr\" data-start=\"2181\" data-end=\"2215\"\u003e\n\u003cp data-start=\"2183\" data-end=\"2215\"\u003eHex Size: 0.625 in \/ 15.880 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"m3cn6f\" data-start=\"2216\" data-end=\"2245\"\u003e\n\u003cp data-start=\"2218\" data-end=\"2245\"\u003eInsulator Height: 0.06 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"16fr5p7\" data-start=\"2246\" data-end=\"2276\"\u003e\n\u003cp data-start=\"2248\" data-end=\"2276\"\u003eManufacturer Heat Range: 9\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1sl50u2\" data-start=\"2277\" data-end=\"2299\"\u003e\n\u003cp data-start=\"2279\" data-end=\"2299\"\u003eSeat Type: Tapered\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"csc27b\" data-start=\"2300\" data-end=\"2319\"\u003e\n\u003cp data-start=\"2302\" data-end=\"2319\"\u003eReach: 0.441 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ycvbgn\" data-start=\"2320\" data-end=\"2361\"\u003e\n\u003cp data-start=\"2322\" data-end=\"2361\"\u003eThread Diameter: 0.551 in \/ 14.000 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9nbfma\" data-start=\"2362\" data-end=\"2384\"\u003e\n\u003cp data-start=\"2364\" data-end=\"2384\"\u003eResistor Type: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jw434h\" data-start=\"2385\" data-end=\"2408\"\u003e\n\u003cp data-start=\"2387\" data-end=\"2408\"\u003eWasher Included: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2lg8h2\" data-start=\"2409\" data-end=\"2452\"\u003e\n\u003cp data-start=\"2411\" data-end=\"2452\"\u003eElectrical Terminal Type: Removable Nut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cf799m\" data-start=\"2453\" data-end=\"2470\"\u003e\n\u003cp data-start=\"2455\" data-end=\"2470\"\u003eHex Type: Hex\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nt2tzg\" data-start=\"2471\" data-end=\"2486\"\u003e\n\u003cp data-start=\"2473\" data-end=\"2486\"\u003eIndexed: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13yo1jo\" data-start=\"2487\" data-end=\"2516\"\u003e\n\u003cp data-start=\"2489\" data-end=\"2516\"\u003eInstalled Height: 2.20 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9uyfdh\" data-start=\"2517\" data-end=\"2550\"\u003e\n\u003cp data-start=\"2519\" data-end=\"2550\"\u003eInsulator Projection: 0.06 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6ig4c\" data-start=\"2551\" data-end=\"2578\"\u003e\n\u003cp data-start=\"2553\" data-end=\"2578\"\u003eTaper Diameter: 0.31 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"198zmx6\" data-start=\"2579\" data-end=\"2605\"\u003e\n\u003cp data-start=\"2581\" data-end=\"2605\"\u003eSubject to Prop 65: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1dixaz0\" data-start=\"2607\" data-end=\"2617\"\u003eFitment\u003c\/h2\u003e\n\u003cul data-start=\"2618\" data-end=\"3082\"\u003e\n\u003cli data-section-id=\"rtfhp1\" data-start=\"2618\" data-end=\"2763\"\u003e\n\u003cp data-start=\"2620\" data-end=\"2763\"\u003eFits a wide range of \u003cstrong data-start=\"2641\" data-end=\"2725\"\u003eBuick, Chevrolet, Excalibur, Ford, GMC, Oldsmobile, Pontiac, and Chrysler Marine\u003c\/strong\u003e automotive and marine applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"m57skb\" data-start=\"2764\" data-end=\"2951\"\u003e\n\u003cp data-start=\"2766\" data-end=\"2951\"\u003eAlso fits select \u003cstrong data-start=\"2783\" data-end=\"2906\"\u003eDaewoo, Volvo Penta, Crusader Marine, Mercruiser, Flagship Marine, Kodiak, Indmar Marine, Chris-Craft, PCM, and Hustler\u003c\/strong\u003e marine and industrial engine applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1x2qtrn\" data-start=\"2952\" data-end=\"3082\"\u003e\n\u003cp data-start=\"2954\" data-end=\"3082\"\u003ePreserve the full application table from the original source for exact \u003cstrong data-start=\"3025\" data-end=\"3081\"\u003eyear, make, model, engine, and quantity requirements\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHAMPION","offers":[{"title":"Default Title","offer_id":46285369213127,"sku":"ELE1966","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-03-12134121.png?v=1773347951","url":"https:\/\/mainstreeteshop.com\/products\/champion-copper-plus-spark-plug-400","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}