{"product_id":"autolite-double-platinum-spark-plug-app3924","title":"Autolite Double Platinum Spark Plug – APP3924","description":"\u003cp data-start=\"133\" data-end=\"499\"\u003e\u003cstrong data-start=\"133\" data-end=\"149\"\u003eDescription:\u003c\/strong\u003e\u003cbr data-start=\"149\" data-end=\"152\"\u003eThe Autolite APP3924 Double Platinum Spark Plug is designed to deliver reliable ignition performance, reduced misfires, and extended service life. Featuring a platinum-to-platinum firing design with platinum pads on both the center and ground electrodes, this spark plug helps minimize gap erosion and maintain consistent spark delivery over time.\u003c\/p\u003e\n\u003cp data-start=\"501\" data-end=\"980\"\u003eA copper core center electrode enhances heat transfer, helping maintain optimal operating temperatures and reducing fouling. The yttrium-enhanced ground electrode improves durability under high temperatures and pressure, making it ideal 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 dependable ignition performance.\u003c\/p\u003e\n\u003cp data-start=\"982\" data-end=\"1129\"\u003eAutolite double platinum spark plugs are engineered to provide long-lasting durability and reliable ignition for many gasoline engine applications.\u003c\/p\u003e\n\u003cp data-start=\"1131\" data-end=\"1144\"\u003e\u003cstrong data-start=\"1131\" data-end=\"1144\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1146\" data-end=\"1560\"\u003e\n\u003cli data-section-id=\"1gu1t7j\" data-start=\"1146\" data-end=\"1229\"\u003e\n\u003cp data-start=\"1148\" data-end=\"1229\"\u003ePlatinum-to-platinum firing design reduces gap erosion and extends service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"50w2va\" data-start=\"1230\" data-end=\"1308\"\u003e\n\u003cp data-start=\"1232\" data-end=\"1308\"\u003eCopper core center electrode improves heat transfer and fouling resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1k8ep57\" data-start=\"1309\" data-end=\"1395\"\u003e\n\u003cp data-start=\"1311\" data-end=\"1395\"\u003eYttrium-enhanced ground electrode improves durability under high heat and pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ipuruc\" data-start=\"1396\" data-end=\"1475\"\u003e\n\u003cp data-start=\"1398\" data-end=\"1475\"\u003eHigh alumina ceramic insulator enhances insulation and thermal conductivity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"pm8255\" data-start=\"1476\" data-end=\"1560\"\u003e\n\u003cp data-start=\"1478\" data-end=\"1560\"\u003eMulti-rib insulator helps prevent flash-over for consistent ignition performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1562\" data-end=\"1589\"\u003e\u003cstrong data-start=\"1562\" data-end=\"1589\"\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1591\" data-end=\"2319\"\u003e\n\u003cli data-section-id=\"pdn4a3\" data-start=\"1591\" data-end=\"1615\"\u003e\n\u003cp data-start=\"1593\" data-end=\"1615\"\u003ePart number: APP3924\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t1nkhe\" data-start=\"1616\" data-end=\"1635\"\u003e\n\u003cp data-start=\"1618\" data-end=\"1635\"\u003eBrand: Autolite\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10px3jr\" data-start=\"1636\" data-end=\"1680\"\u003e\n\u003cp data-start=\"1638\" data-end=\"1680\"\u003eProduct type: Double platinum spark plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"x3vjbp\" data-start=\"1681\" data-end=\"1723\"\u003e\n\u003cp data-start=\"1683\" data-end=\"1723\"\u003eCenter electrode core material: Copper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ldp2q6\" data-start=\"1724\" data-end=\"1767\"\u003e\n\u003cp data-start=\"1726\" data-end=\"1767\"\u003eCenter electrode tip material: Platinum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3au8g6\" data-start=\"1768\" data-end=\"1810\"\u003e\n\u003cp data-start=\"1770\" data-end=\"1810\"\u003eGround electrode core material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1wgawxs\" data-start=\"1811\" data-end=\"1854\"\u003e\n\u003cp data-start=\"1813\" data-end=\"1854\"\u003eGround electrode tip material: Platinum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ibjk3h\" data-start=\"1855\" data-end=\"1887\"\u003e\n\u003cp data-start=\"1857\" data-end=\"1887\"\u003eGround configuration: Single\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"55pk7u\" data-start=\"1888\" data-end=\"1920\"\u003e\n\u003cp data-start=\"1890\" data-end=\"1920\"\u003eGround electrode quantity: 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"r5af6m\" data-start=\"1921\" data-end=\"1947\"\u003e\n\u003cp data-start=\"1923\" data-end=\"1947\"\u003eThread diameter: 14 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"163h8t2\" data-start=\"1948\" data-end=\"1967\"\u003e\n\u003cp data-start=\"1950\" data-end=\"1967\"\u003eSeat type: Flat\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gbvvjz\" data-start=\"1968\" data-end=\"1992\"\u003e\n\u003cp data-start=\"1970\" data-end=\"1992\"\u003eWasher included: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"palr3o\" data-start=\"1993\" data-end=\"2011\"\u003e\n\u003cp data-start=\"1995\" data-end=\"2011\"\u003eReach: 0.75 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5tphr9\" data-start=\"2012\" data-end=\"2031\"\u003e\n\u003cp data-start=\"2014\" data-end=\"2031\"\u003eHex size: 16 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"dujk1e\" data-start=\"2032\" data-end=\"2054\"\u003e\n\u003cp data-start=\"2034\" data-end=\"2054\"\u003eResistor type: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gwnm18\" data-start=\"2055\" data-end=\"2080\"\u003e\n\u003cp data-start=\"2057\" data-end=\"2080\"\u003eResistance: 4000 ohms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ymlhoi\" data-start=\"2081\" data-end=\"2107\"\u003e\n\u003cp data-start=\"2083\" data-end=\"2107\"\u003ePre-gap size: 0.044 in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17h5ouz\" data-start=\"2108\" data-end=\"2138\"\u003e\n\u003cp data-start=\"2110\" data-end=\"2138\"\u003eManufacturer heat range: 9\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sjdq26\" data-start=\"2139\" data-end=\"2170\"\u003e\n\u003cp data-start=\"2141\" data-end=\"2170\"\u003eInsulator material: Ceramic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3c37w7\" data-start=\"2171\" data-end=\"2208\"\u003e\n\u003cp data-start=\"2173\" data-end=\"2208\"\u003eCenter electrode design: Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11yt6xq\" data-start=\"2209\" data-end=\"2256\"\u003e\n\u003cp data-start=\"2211\" data-end=\"2256\"\u003eCenter electrode projection: Mid projection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1b7wdfo\" data-start=\"2257\" data-end=\"2304\"\u003e\n\u003cp data-start=\"2259\" data-end=\"2304\"\u003eElectrical terminal type: Non-removable nut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vb0oei\" data-start=\"2305\" data-end=\"2319\"\u003e\n\u003cp data-start=\"2307\" data-end=\"2319\"\u003eSkirt: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AUTOLITE","offers":[{"title":"Default Title","offer_id":46280464859335,"sku":"ELE1923","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-03-11142247_fb42607e-4847-41b6-9ff0-7b25c0cc710f.png?v=1773264606","url":"https:\/\/mainstreeteshop.com\/products\/autolite-double-platinum-spark-plug-app3924","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}