{"product_id":"champion-copper-plus-spark-plug-rj19hx-973","title":"Champion Copper Plus Spark Plug RJ19HX - 973","description":"\u003ch2 data-section-id=\"rmw5tv\" data-start=\"173\" data-end=\"187\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"188\" data-end=\"572\"\u003eThe \u003cstrong data-start=\"192\" data-end=\"234\"\u003eChampion Copper Plus Spark Plug RJ19HX\u003c\/strong\u003e is a dependable OE-type replacement spark plug designed for reliable ignition performance, solid heat control, and long service life in small engine applications. Built with Champion’s proven Copper Plus design, this plug helps support dependable starts, resist fouling, and maintain consistent overall wear in lawn and garden equipment.\u003c\/p\u003e\n\u003cp data-start=\"574\" data-end=\"952\"\u003eIts copper core construction helps provide accurate heat range control for longer life, while the flat seat, crush washer, and resistor design support proper fit and dependable operation. Built to \u003cstrong data-start=\"771\" data-end=\"796\"\u003eISO and SAE standards\u003c\/strong\u003e, the RJ19HX is a trusted replacement choice for walk-behind mowers and other outdoor power equipment that require durable, OE-style spark plug performance.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1d7mrtu\" data-start=\"954\" data-end=\"965\"\u003eFeatures\u003c\/h2\u003e\n\u003cul data-start=\"966\" data-end=\"2296\"\u003e\n\u003cli data-section-id=\"ephkkb\" data-start=\"966\" data-end=\"988\"\u003ePart number: \u003cstrong data-start=\"981\" data-end=\"988\"\u003e973\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8iy3ms\" data-start=\"989\" data-end=\"1012\"\u003ePlug type: \u003cstrong data-start=\"1002\" data-end=\"1012\"\u003eRJ19HX\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1quckws\" data-start=\"1013\" data-end=\"1045\"\u003eOE-type replacement spark plug\u003c\/li\u003e\n\u003cli data-section-id=\"vjypw9\" data-start=\"1046\" data-end=\"1121\"\u003eChampion \u003cstrong data-start=\"1057\" data-end=\"1072\"\u003eCopper Plus\u003c\/strong\u003e design for dependable performance and durability\u003c\/li\u003e\n\u003cli data-section-id=\"1v7x4va\" data-start=\"1122\" data-end=\"1167\"\u003eHelps resist fouling for reliable operation\u003c\/li\u003e\n\u003cli data-section-id=\"1g26908\" data-start=\"1168\" data-end=\"1249\"\u003eCopper core center electrode allows accurate heat range control for longer life\u003c\/li\u003e\n\u003cli data-section-id=\"16ob2li\" data-start=\"1250\" data-end=\"1281\"\u003eSuperior corrosion resistance\u003c\/li\u003e\n\u003cli data-section-id=\"1hao7bb\" data-start=\"1282\" data-end=\"1341\"\u003eBuilt to \u003cstrong data-start=\"1293\" data-end=\"1318\"\u003eISO and SAE standards\u003c\/strong\u003e for proven performance\u003c\/li\u003e\n\u003cli data-section-id=\"1vtmvwe\" data-start=\"1342\" data-end=\"1385\"\u003eCenter electrode tip material: \u003cstrong data-start=\"1375\" data-end=\"1385\"\u003eNickel\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8pyils\" data-start=\"1386\" data-end=\"1429\"\u003eGround electrode tip material: \u003cstrong data-start=\"1419\" data-end=\"1429\"\u003eNickel\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rvbsjq\" data-start=\"1430\" data-end=\"1474\"\u003eGround electrode core material: \u003cstrong data-start=\"1464\" data-end=\"1474\"\u003eNickel\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1i8ydld\" data-start=\"1475\" data-end=\"1527\"\u003eGround electrode material: \u003cstrong data-start=\"1504\" data-end=\"1527\"\u003eNickel Copper Alloy\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5rjk4a\" data-start=\"1528\" data-end=\"1562\"\u003eGround electrode quantity: \u003cstrong data-start=\"1557\" data-end=\"1562\"\u003e1\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jtqy4y\" data-start=\"1563\" data-end=\"1601\"\u003ePre-gap size: \u003cstrong data-start=\"1579\" data-end=\"1601\"\u003e0.030 in \/ 0.75 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1w1bd5d\" data-start=\"1602\" data-end=\"1638\"\u003eHex size: \u003cstrong data-start=\"1614\" data-end=\"1638\"\u003e0.813 in \/ 20.650 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1k4yssy\" data-start=\"1639\" data-end=\"1670\"\u003eInsulator height: \u003cstrong data-start=\"1659\" data-end=\"1670\"\u003e0.03 in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"c2o022\" data-start=\"1671\" data-end=\"1704\"\u003eManufacturer heat range: \u003cstrong data-start=\"1698\" data-end=\"1704\"\u003e19\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hkfrva\" data-start=\"1705\" data-end=\"1726\"\u003eSeat type: \u003cstrong data-start=\"1718\" data-end=\"1726\"\u003eFlat\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ypkvev\" data-start=\"1727\" data-end=\"1748\"\u003eReach: \u003cstrong data-start=\"1736\" data-end=\"1748\"\u003e0.375 in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1swtu7b\" data-start=\"1749\" data-end=\"1792\"\u003eThread diameter: \u003cstrong data-start=\"1768\" data-end=\"1792\"\u003e14.000 mm \/ 0.551 in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3onhv6\" data-start=\"1793\" data-end=\"1817\"\u003eResistor type: \u003cstrong data-start=\"1810\" data-end=\"1817\"\u003eYes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"dusrgf\" data-start=\"1818\" data-end=\"1844\"\u003eWasher included: \u003cstrong data-start=\"1837\" data-end=\"1844\"\u003eYes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"g8dtgv\" data-start=\"1845\" data-end=\"1869\"\u003eWasher type: \u003cstrong data-start=\"1860\" data-end=\"1869\"\u003eCrush\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jkmwaz\" data-start=\"1870\" data-end=\"1925\"\u003eClassification: \u003cstrong data-start=\"1888\" data-end=\"1925\"\u003eChampion Copper Plus Small Engine\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nb2evu\" data-start=\"1926\" data-end=\"1964\"\u003eGrade type: \u003cstrong data-start=\"1940\" data-end=\"1964\"\u003eStandard Replacement\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nioi10\" data-start=\"1965\" data-end=\"2014\"\u003eElectrical terminal type: \u003cstrong data-start=\"1993\" data-end=\"2014\"\u003eNon-Removable Nut\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18o5oq\" data-start=\"2015\" data-end=\"2034\"\u003eHex type: \u003cstrong data-start=\"2027\" data-end=\"2034\"\u003eHex\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1s56v1z\" data-start=\"2035\" data-end=\"2074\"\u003eCenter electrode design: \u003cstrong data-start=\"2062\" data-end=\"2074\"\u003eStandard\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1c2p00c\" data-start=\"2075\" data-end=\"2092\"\u003eIndexed: \u003cstrong data-start=\"2086\" data-end=\"2092\"\u003eNo\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18i6g0m\" data-start=\"2093\" data-end=\"2127\"\u003ePart description: \u003cstrong data-start=\"2113\" data-end=\"2127\"\u003eSpark Plug\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"x3qz9z\" data-start=\"2128\" data-end=\"2169\"\u003eCenter electrode diameter: \u003cstrong data-start=\"2157\" data-end=\"2169\"\u003e0.052 in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"b6eyd5\" data-start=\"2170\" data-end=\"2201\"\u003eInstalled height: \u003cstrong data-start=\"2190\" data-end=\"2201\"\u003e1.84 in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"197w1cg\" data-start=\"2202\" data-end=\"2237\"\u003eInsulator projection: \u003cstrong data-start=\"2226\" data-end=\"2237\"\u003e0.03 in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"166ye9o\" data-start=\"2238\" data-end=\"2267\"\u003eTaper diameter: \u003cstrong data-start=\"2256\" data-end=\"2267\"\u003e0.31 in\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"155ibey\" data-start=\"2268\" data-end=\"2296\"\u003eSubject to Prop 65: \u003cstrong data-start=\"2290\" data-end=\"2296\"\u003eNo\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"9cq2u\" data-start=\"2298\" data-end=\"2318\"\u003eEquipment Fitment\u003c\/h2\u003e\n\u003ch3 data-section-id=\"et6s1r\" data-start=\"2320\" data-end=\"2341\"\u003eBriggs \u0026amp; Stratton\u003c\/h3\u003e\n\u003cul data-start=\"2342\" data-end=\"2440\"\u003e\n\u003cli data-section-id=\"5iro3h\" data-start=\"2342\" data-end=\"2352\"\u003e\u003cstrong data-start=\"2344\" data-end=\"2352\"\u003eBase\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli 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SM\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHAMPION","offers":[{"title":"Default Title","offer_id":46423674552519,"sku":"ELE2065","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-04-17094817.png?v=1776444505","url":"https:\/\/mainstreeteshop.com\/products\/champion-copper-plus-spark-plug-rj19hx-973","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}