{"product_id":"autolite-double-platinum-spark-plug-app5243","title":"Autolite Double Platinum Spark Plug – APP5243","description":"\u003cp data-start=\"133\" data-end=\"478\"\u003e\u003cstrong data-start=\"133\" data-end=\"149\"\u003eDescription:\u003c\/strong\u003e\u003cbr data-start=\"149\" data-end=\"152\"\u003eThe Autolite APP5243 Double Platinum Spark Plug is designed to deliver reliable ignition performance, reduced misfires, and extended service life. Its platinum-to-platinum firing design features platinum pads on both the center and ground electrodes to minimize gap erosion and maintain consistent spark performance over time.\u003c\/p\u003e\n\u003cp data-start=\"480\" data-end=\"973\"\u003eThe copper core center electrode helps improve heat transfer, supporting proper operating temperatures and reducing fouling. A yttrium-enhanced ground electrode increases durability under high temperatures and engine pressures, making this spark plug well suited for distributorless ignition system (DIS) engines. The high alumina ceramic insulator provides excellent thermal conductivity and dielectric strength, while the multi-rib insulator helps prevent flash-over for consistent ignition.\u003c\/p\u003e\n\u003cp data-start=\"975\" data-end=\"1108\"\u003eAutolite double platinum spark plugs provide dependable performance and long service intervals for many gasoline engine applications.\u003c\/p\u003e\n\u003cp data-start=\"1110\" data-end=\"1123\"\u003e\u003cstrong data-start=\"1110\" data-end=\"1123\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1125\" data-end=\"1541\"\u003e\n\u003cli data-section-id=\"wryitx\" data-start=\"1125\" data-end=\"1215\"\u003e\n\u003cp data-start=\"1127\" data-end=\"1215\"\u003ePlatinum-to-platinum firing design helps reduce gap erosion and extend spark plug life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"50w2va\" data-start=\"1216\" data-end=\"1294\"\u003e\n\u003cp data-start=\"1218\" data-end=\"1294\"\u003eCopper core center electrode improves heat transfer and fouling resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6rdyyd\" data-start=\"1295\" data-end=\"1382\"\u003e\n\u003cp data-start=\"1297\" data-end=\"1382\"\u003eYttrium-enhanced ground electrode increases durability under high heat and pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9zul8h\" data-start=\"1383\" data-end=\"1458\"\u003e\n\u003cp data-start=\"1385\" data-end=\"1458\"\u003eHigh alumina ceramic insulator improves insulation and heat dissipation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1svf9sx\" data-start=\"1459\" data-end=\"1541\"\u003e\n\u003cp data-start=\"1461\" data-end=\"1541\"\u003eMulti-rib insulator helps prevent flash-over for reliable ignition performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1543\" data-end=\"1570\"\u003e\u003cstrong data-start=\"1543\" data-end=\"1570\"\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1572\" data-end=\"2328\"\u003e\n\u003cli data-section-id=\"ntyb53\" data-start=\"1572\" data-end=\"1596\"\u003e\n\u003cp data-start=\"1574\" data-end=\"1596\"\u003ePart number: APP5243\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t1nkhe\" data-start=\"1597\" data-end=\"1616\"\u003e\n\u003cp data-start=\"1599\" data-end=\"1616\"\u003eBrand: Autolite\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10px3jr\" data-start=\"1617\" data-end=\"1661\"\u003e\n\u003cp data-start=\"1619\" data-end=\"1661\"\u003eProduct type: Double platinum spark plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"x3vjbp\" data-start=\"1662\" data-end=\"1704\"\u003e\n\u003cp data-start=\"1664\" data-end=\"1704\"\u003eCenter electrode core material: Copper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ldp2q6\" data-start=\"1705\" data-end=\"1748\"\u003e\n\u003cp data-start=\"1707\" data-end=\"1748\"\u003eCenter electrode tip material: Platinum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3au8g6\" data-start=\"1749\" data-end=\"1791\"\u003e\n\u003cp data-start=\"1751\" data-end=\"1791\"\u003eGround electrode core material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1wgawxs\" data-start=\"1792\" data-end=\"1835\"\u003e\n\u003cp data-start=\"1794\" data-end=\"1835\"\u003eGround electrode tip material: Platinum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ibjk3h\" data-start=\"1836\" data-end=\"1868\"\u003e\n\u003cp data-start=\"1838\" data-end=\"1868\"\u003eGround configuration: Single\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"55pk7u\" data-start=\"1869\" data-end=\"1901\"\u003e\n\u003cp data-start=\"1871\" data-end=\"1901\"\u003eGround electrode quantity: 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"r5af6m\" data-start=\"1902\" data-end=\"1928\"\u003e\n\u003cp data-start=\"1904\" data-end=\"1928\"\u003eThread diameter: 14 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vqolju\" data-start=\"1929\" data-end=\"1951\"\u003e\n\u003cp data-start=\"1931\" data-end=\"1951\"\u003eSeat type: Tapered\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rfiaup\" data-start=\"1952\" data-end=\"1975\"\u003e\n\u003cp data-start=\"1954\" data-end=\"1975\"\u003eWasher included: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"110ct6o\" data-start=\"1976\" data-end=\"2006\"\u003e\n\u003cp data-start=\"1978\" data-end=\"2006\"\u003eReach: 17.25 mm (0.679 in)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5tphr9\" data-start=\"2007\" data-end=\"2026\"\u003e\n\u003cp data-start=\"2009\" data-end=\"2026\"\u003eHex size: 16 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"dujk1e\" data-start=\"2027\" data-end=\"2049\"\u003e\n\u003cp data-start=\"2029\" data-end=\"2049\"\u003eResistor type: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gwnm18\" data-start=\"2050\" data-end=\"2075\"\u003e\n\u003cp data-start=\"2052\" data-end=\"2075\"\u003eResistance: 4000 ohms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"73in25\" data-start=\"2076\" data-end=\"2114\"\u003e\n\u003cp data-start=\"2078\" data-end=\"2114\"\u003ePre-gap size: 1.1176 mm (0.044 in)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"e3s5kz\" data-start=\"2115\" data-end=\"2146\"\u003e\n\u003cp data-start=\"2117\" data-end=\"2146\"\u003eManufacturer heat range: 10\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sjdq26\" data-start=\"2147\" data-end=\"2178\"\u003e\n\u003cp data-start=\"2149\" data-end=\"2178\"\u003eInsulator material: Ceramic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3c37w7\" data-start=\"2179\" data-end=\"2216\"\u003e\n\u003cp data-start=\"2181\" data-end=\"2216\"\u003eCenter electrode design: Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sx1zuc\" data-start=\"2217\" data-end=\"2265\"\u003e\n\u003cp data-start=\"2219\" data-end=\"2265\"\u003eCenter electrode projection: Long projection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1b7wdfo\" data-start=\"2266\" data-end=\"2313\"\u003e\n\u003cp data-start=\"2268\" data-end=\"2313\"\u003eElectrical terminal type: Non-removable nut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vb0oei\" data-start=\"2314\" data-end=\"2328\"\u003e\n\u003cp data-start=\"2316\" data-end=\"2328\"\u003eSkirt: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AUTOLITE","offers":[{"title":"Default Title","offer_id":46280546910407,"sku":"ELE1924","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-03-11142247_f0cfbbad-641d-4014-9735-848c12852e50.png?v=1773267358","url":"https:\/\/mainstreeteshop.com\/products\/autolite-double-platinum-spark-plug-app5243","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}