{"product_id":"champion-copper-plus-spark-plug-344","title":"Champion Copper Plus Spark Plug 344","description":"\u003ch2 data-section-id=\"rmw5tv\" data-start=\"227\" data-end=\"241\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"242\" data-end=\"600\"\u003eThe \u003cstrong data-start=\"246\" data-end=\"285\"\u003eChampion Copper Plus Spark Plug 344\u003c\/strong\u003e is engineered to deliver dependable ignition performance and long service life in a wide range of automotive and marine applications. Featuring a \u003cstrong data-start=\"432\" data-end=\"464\"\u003ecopper core center electrode\u003c\/strong\u003e, this spark plug provides increased conductivity and accurate heat control to support efficient combustion and consistent overall wear.\u003c\/p\u003e\n\u003cp data-start=\"602\" data-end=\"958\"\u003eAs part of the \u003cstrong data-start=\"617\" data-end=\"641\"\u003eChampion Copper Plus\u003c\/strong\u003e line, the \u003cstrong data-start=\"652\" data-end=\"661\"\u003eRC9YC\u003c\/strong\u003e is built for reliable replacement performance with \u003cstrong data-start=\"713\" data-end=\"746\"\u003esuperior corrosion resistance\u003c\/strong\u003e and durable construction. The copper core design helps maintain proper heat range control for longer plug life, while the standard resistor configuration supports stable ignition operation in compatible engines.\u003c\/p\u003e\n\u003cp data-start=\"960\" data-end=\"1194\"\u003eBuilt to \u003cstrong data-start=\"969\" data-end=\"994\"\u003eISO and SAE standards\u003c\/strong\u003e, this spark plug includes a \u003cstrong data-start=\"1023\" data-end=\"1036\"\u003eflat seat\u003c\/strong\u003e, \u003cstrong data-start=\"1038\" data-end=\"1054\"\u003ecrush washer\u003c\/strong\u003e, \u003cstrong data-start=\"1056\" data-end=\"1082\"\u003eremovable nut terminal\u003c\/strong\u003e, and a \u003cstrong data-start=\"1090\" data-end=\"1131\"\u003efactory pre-gap of 0.035 in (0.89 mm)\u003c\/strong\u003e for dependable installation and consistent engine performance.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1d7mrtu\" data-start=\"1196\" data-end=\"1207\"\u003eFeatures\u003c\/h2\u003e\n\u003cul data-start=\"1208\" data-end=\"1623\"\u003e\n\u003cli data-section-id=\"1spuydi\" data-start=\"1208\" data-end=\"1283\"\u003e\n\u003cp data-start=\"1210\" data-end=\"1283\"\u003e\u003cstrong data-start=\"1210\" data-end=\"1242\"\u003eCopper core center electrode\u003c\/strong\u003e improves conductivity and heat control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"qk3uah\" data-start=\"1284\" data-end=\"1361\"\u003e\n\u003cp data-start=\"1286\" data-end=\"1361\"\u003e\u003cstrong data-start=\"1286\" data-end=\"1310\"\u003eChampion Copper Plus\u003c\/strong\u003e design for dependable performance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19f7e0r\" data-start=\"1362\" data-end=\"1423\"\u003e\n\u003cp data-start=\"1364\" data-end=\"1423\"\u003e\u003cstrong data-start=\"1364\" data-end=\"1397\"\u003eSuperior corrosion resistance\u003c\/strong\u003e for longer service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7l4ebr\" data-start=\"1424\" data-end=\"1485\"\u003e\n\u003cp data-start=\"1426\" data-end=\"1485\"\u003eBuilt to \u003cstrong data-start=\"1435\" data-end=\"1460\"\u003eISO and SAE standards\u003c\/strong\u003e for proven performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1o1xuii\" data-start=\"1486\" data-end=\"1558\"\u003e\n\u003cp data-start=\"1488\" data-end=\"1558\"\u003e\u003cstrong data-start=\"1488\" data-end=\"1519\"\u003eAccurate heat range control\u003c\/strong\u003e supports reliable ignition operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1mwiy7h\" data-start=\"1559\" data-end=\"1623\"\u003e\n\u003cp data-start=\"1561\" data-end=\"1623\"\u003e\u003cstrong data-start=\"1561\" data-end=\"1580\"\u003eResistor design\u003c\/strong\u003e helps maintain stable engine performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1625\" data-end=\"1642\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-start=\"1643\" data-end=\"2585\"\u003e\n\u003cli data-section-id=\"9ty3qu\" data-start=\"1643\" data-end=\"1662\"\u003e\n\u003cp data-start=\"1645\" data-end=\"1662\"\u003eBrand: Champion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jjky6t\" data-start=\"1663\" data-end=\"1683\"\u003e\n\u003cp data-start=\"1665\" data-end=\"1683\"\u003ePart Number: 344\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"r2cdg6\" data-start=\"1684\" data-end=\"1704\"\u003e\n\u003cp data-start=\"1686\" data-end=\"1704\"\u003ePlug Type: RC9YC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"iqia62\" data-start=\"1705\" data-end=\"1745\"\u003e\n\u003cp data-start=\"1707\" data-end=\"1745\"\u003eClassification: Champion Copper Plus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9kxcai\" data-start=\"1746\" data-end=\"1782\"\u003e\n\u003cp data-start=\"1748\" data-end=\"1782\"\u003eGrade Type: Standard Replacement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qpht86\" data-start=\"1783\" data-end=\"1815\"\u003e\n\u003cp data-start=\"1785\" data-end=\"1815\"\u003ePart Description: Spark Plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"suotmr\" data-start=\"1816\" data-end=\"1857\"\u003e\n\u003cp data-start=\"1818\" data-end=\"1857\"\u003eCenter Electrode Tip Material: Copper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"42bjef\" data-start=\"1858\" data-end=\"1895\"\u003e\n\u003cp data-start=\"1860\" data-end=\"1895\"\u003eCenter Electrode Design: Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19wox35\" data-start=\"1896\" data-end=\"1934\"\u003e\n\u003cp data-start=\"1898\" data-end=\"1934\"\u003eCenter Electrode Diameter: 0.10 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tcgx5m\" data-start=\"1935\" data-end=\"1967\"\u003e\n\u003cp data-start=\"1937\" data-end=\"1967\"\u003eGround Electrode Quantity: 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"psgbmu\" data-start=\"1968\" data-end=\"2010\"\u003e\n\u003cp data-start=\"1970\" data-end=\"2010\"\u003eGround Electrode Core Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"es7l3k\" data-start=\"2011\" data-end=\"2052\"\u003e\n\u003cp data-start=\"2013\" data-end=\"2052\"\u003eGround Electrode Tip Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sunzm9\" data-start=\"2053\" data-end=\"2103\"\u003e\n\u003cp data-start=\"2055\" data-end=\"2103\"\u003eGround Electrode Material: Nickel Copper Alloy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4yhbn8\" data-start=\"2104\" data-end=\"2140\"\u003e\n\u003cp data-start=\"2106\" data-end=\"2140\"\u003ePre-Gap Size: 0.035 in \/ 0.89 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ur7zdr\" data-start=\"2141\" data-end=\"2175\"\u003e\n\u003cp data-start=\"2143\" data-end=\"2175\"\u003eHex Size: 0.625 in \/ 15.880 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"m3cn6f\" data-start=\"2176\" data-end=\"2205\"\u003e\n\u003cp data-start=\"2178\" data-end=\"2205\"\u003eInsulator Height: 0.06 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"16fr5p7\" data-start=\"2206\" data-end=\"2236\"\u003e\n\u003cp data-start=\"2208\" data-end=\"2236\"\u003eManufacturer Heat Range: 9\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"12ns31y\" data-start=\"2237\" data-end=\"2256\"\u003e\n\u003cp data-start=\"2239\" data-end=\"2256\"\u003eSeat Type: Flat\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"palr3o\" data-start=\"2257\" data-end=\"2275\"\u003e\n\u003cp data-start=\"2259\" data-end=\"2275\"\u003eReach: 0.75 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ycvbgn\" data-start=\"2276\" data-end=\"2317\"\u003e\n\u003cp data-start=\"2278\" data-end=\"2317\"\u003eThread Diameter: 0.551 in \/ 14.000 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9nbfma\" data-start=\"2318\" data-end=\"2340\"\u003e\n\u003cp data-start=\"2320\" data-end=\"2340\"\u003eResistor Type: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gsl5i7\" data-start=\"2341\" data-end=\"2365\"\u003e\n\u003cp data-start=\"2343\" data-end=\"2365\"\u003eWasher Included: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ygep3j\" data-start=\"2366\" data-end=\"2388\"\u003e\n\u003cp data-start=\"2368\" data-end=\"2388\"\u003eWasher Type: Crush\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2lg8h2\" data-start=\"2389\" data-end=\"2432\"\u003e\n\u003cp data-start=\"2391\" data-end=\"2432\"\u003eElectrical Terminal Type: Removable Nut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cf799m\" data-start=\"2433\" data-end=\"2450\"\u003e\n\u003cp data-start=\"2435\" data-end=\"2450\"\u003eHex Type: Hex\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nt2tzg\" data-start=\"2451\" data-end=\"2466\"\u003e\n\u003cp data-start=\"2453\" data-end=\"2466\"\u003eIndexed: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1my9nat\" data-start=\"2467\" data-end=\"2496\"\u003e\n\u003cp data-start=\"2469\" data-end=\"2496\"\u003eInstalled Height: 1.99 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9uyfdh\" data-start=\"2497\" data-end=\"2530\"\u003e\n\u003cp data-start=\"2499\" data-end=\"2530\"\u003eInsulator Projection: 0.06 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1f42kij\" data-start=\"2531\" data-end=\"2558\"\u003e\n\u003cp data-start=\"2533\" data-end=\"2558\"\u003eTaper Diameter: 0.27 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"198zmx6\" data-start=\"2559\" data-end=\"2585\"\u003e\n\u003cp data-start=\"2561\" data-end=\"2585\"\u003eSubject to Prop 65: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1dixaz0\" data-start=\"2587\" data-end=\"2597\"\u003eFitment\u003c\/h2\u003e\n\u003cul data-start=\"2598\" data-end=\"3131\"\u003e\n\u003cli data-section-id=\"7ehgve\" data-start=\"2598\" data-end=\"2893\"\u003e\n\u003cp data-start=\"2600\" data-end=\"2893\"\u003eFits a wide range of \u003cstrong data-start=\"2621\" data-end=\"2877\"\u003eAlfa Romeo, Aston Martin, Audi, Buick, Chevrolet, Chrysler, Dodge, Geo, Hyundai, INFINITI, Jaguar, Jeep, Kia, Lexus, Lotus, Maybach, Mercedes-Benz, Mitsubishi, Oldsmobile, Peugeot, Plymouth, Pontiac, Porsche, Saab, Suzuki, Toyota, Volkswagen, and Volvo\u003c\/strong\u003e applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3jldmt\" data-start=\"2894\" data-end=\"3000\"\u003e\n\u003cp data-start=\"2896\" data-end=\"3000\"\u003eAlso fits select \u003cstrong data-start=\"2913\" data-end=\"2932\"\u003eSuzuki outboard\u003c\/strong\u003e, \u003cstrong data-start=\"2934\" data-end=\"2948\"\u003eMercruiser\u003c\/strong\u003e, \u003cstrong data-start=\"2950\" data-end=\"2961\"\u003eJohnson\u003c\/strong\u003e, and \u003cstrong data-start=\"2967\" data-end=\"2977\"\u003eYamaha\u003c\/strong\u003e marine applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1x2qtrn\" data-start=\"3001\" data-end=\"3131\"\u003e\n\u003cp data-start=\"3003\" data-end=\"3131\"\u003ePreserve the full application table from the original source for exact \u003cstrong data-start=\"3074\" data-end=\"3130\"\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":46285349748935,"sku":"ELE1963","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-03-12133305.png?v=1773347456","url":"https:\/\/mainstreeteshop.com\/products\/champion-copper-plus-spark-plug-344","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}