{"product_id":"autolite-double-platinum-spark-plug-app5363","title":"Autolite Double Platinum Spark Plug – APP5363","description":"\u003cp data-start=\"133\" data-end=\"508\"\u003e\u003cstrong data-start=\"133\" data-end=\"149\"\u003eDescription:\u003c\/strong\u003e\u003cbr data-start=\"149\" data-end=\"152\"\u003eThe Autolite APP5363 Double Platinum Spark Plug is engineered to deliver dependable ignition performance, reduced misfires, and extended spark plug life. Featuring a platinum-to-platinum firing design, this spark plug uses platinum pads on both the center and ground electrodes to help minimize gap erosion and maintain consistent spark delivery over time.\u003c\/p\u003e\n\u003cp data-start=\"510\" data-end=\"1021\"\u003eThe copper core center electrode improves heat transfer, helping the plug maintain proper operating temperature while reducing the risk of fouling. A yttrium-enhanced ground electrode increases durability under high heat and pressure, making this spark plug ideal for distributorless ignition system (DIS) engines. The high alumina ceramic insulator provides excellent dielectric strength and thermal conductivity, while the multi-rib insulator design helps prevent flash-over for reliable ignition performance.\u003c\/p\u003e\n\u003cp data-start=\"1023\" data-end=\"1175\"\u003eAutolite double platinum spark plugs provide long-lasting performance and reliable engine operation across a wide range of gasoline engine applications.\u003c\/p\u003e\n\u003cp data-start=\"1177\" data-end=\"1190\"\u003e\u003cstrong data-start=\"1177\" data-end=\"1190\"\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1192\" data-end=\"1607\"\u003e\n\u003cli data-section-id=\"xmod9z\" data-start=\"1192\" data-end=\"1278\"\u003e\n\u003cp data-start=\"1194\" data-end=\"1278\"\u003ePlatinum-to-platinum firing design reduces gap erosion and extends spark plug life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"50w2va\" data-start=\"1279\" data-end=\"1357\"\u003e\n\u003cp data-start=\"1281\" data-end=\"1357\"\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=\"1358\" data-end=\"1445\"\u003e\n\u003cp data-start=\"1360\" data-end=\"1445\"\u003eYttrium-enhanced ground electrode increases durability under high heat and pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1rxcgck\" data-start=\"1446\" data-end=\"1525\"\u003e\n\u003cp data-start=\"1448\" data-end=\"1525\"\u003eHigh alumina ceramic insulator improves thermal conductivity and insulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"pen07\" data-start=\"1526\" data-end=\"1607\"\u003e\n\u003cp data-start=\"1528\" data-end=\"1607\"\u003eMulti-rib insulator helps prevent flash-over for consistent spark performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1609\" data-end=\"1636\"\u003e\u003cstrong data-start=\"1609\" data-end=\"1636\"\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1638\" data-end=\"2381\"\u003e\n\u003cli data-section-id=\"nw2dno\" data-start=\"1638\" data-end=\"1662\"\u003e\n\u003cp data-start=\"1640\" data-end=\"1662\"\u003ePart number: APP5363\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t1nkhe\" data-start=\"1663\" data-end=\"1682\"\u003e\n\u003cp data-start=\"1665\" data-end=\"1682\"\u003eBrand: Autolite\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10px3jr\" data-start=\"1683\" data-end=\"1727\"\u003e\n\u003cp data-start=\"1685\" data-end=\"1727\"\u003eProduct type: Double platinum spark plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"x3vjbp\" data-start=\"1728\" data-end=\"1770\"\u003e\n\u003cp data-start=\"1730\" data-end=\"1770\"\u003eCenter electrode core material: Copper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ldp2q6\" data-start=\"1771\" data-end=\"1814\"\u003e\n\u003cp data-start=\"1773\" data-end=\"1814\"\u003eCenter electrode tip material: Platinum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3au8g6\" data-start=\"1815\" data-end=\"1857\"\u003e\n\u003cp data-start=\"1817\" data-end=\"1857\"\u003eGround electrode core material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1wgawxs\" data-start=\"1858\" data-end=\"1901\"\u003e\n\u003cp data-start=\"1860\" data-end=\"1901\"\u003eGround electrode tip material: Platinum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ibjk3h\" data-start=\"1902\" data-end=\"1934\"\u003e\n\u003cp data-start=\"1904\" data-end=\"1934\"\u003eGround configuration: Single\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"55pk7u\" 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=\"r5af6m\" data-start=\"1968\" data-end=\"1994\"\u003e\n\u003cp data-start=\"1970\" data-end=\"1994\"\u003eThread diameter: 14 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vqolju\" data-start=\"1995\" data-end=\"2017\"\u003e\n\u003cp data-start=\"1997\" data-end=\"2017\"\u003eSeat type: Tapered\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rfiaup\" data-start=\"2018\" data-end=\"2041\"\u003e\n\u003cp data-start=\"2020\" data-end=\"2041\"\u003eWasher included: No\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1yvnsdd\" data-start=\"2042\" data-end=\"2072\"\u003e\n\u003cp data-start=\"2044\" data-end=\"2072\"\u003eReach: 24.94 mm (0.982 in)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5tphr9\" data-start=\"2073\" data-end=\"2092\"\u003e\n\u003cp data-start=\"2075\" data-end=\"2092\"\u003eHex size: 16 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"dujk1e\" data-start=\"2093\" data-end=\"2115\"\u003e\n\u003cp data-start=\"2095\" data-end=\"2115\"\u003eResistor type: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gwnm18\" data-start=\"2116\" data-end=\"2141\"\u003e\n\u003cp data-start=\"2118\" data-end=\"2141\"\u003eResistance: 4000 ohms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vplehv\" data-start=\"2142\" data-end=\"2168\"\u003e\n\u003cp data-start=\"2144\" data-end=\"2168\"\u003ePre-gap size: 1.016 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"e3s6de\" data-start=\"2169\" data-end=\"2200\"\u003e\n\u003cp data-start=\"2171\" data-end=\"2200\"\u003eManufacturer heat range: 11\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sjdq26\" data-start=\"2201\" data-end=\"2232\"\u003e\n\u003cp data-start=\"2203\" data-end=\"2232\"\u003eInsulator material: Ceramic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3c37w7\" data-start=\"2233\" data-end=\"2270\"\u003e\n\u003cp data-start=\"2235\" data-end=\"2270\"\u003eCenter electrode design: Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11yt6xq\" data-start=\"2271\" data-end=\"2318\"\u003e\n\u003cp data-start=\"2273\" data-end=\"2318\"\u003eCenter electrode projection: Mid projection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1b7wdfo\" data-start=\"2319\" data-end=\"2366\"\u003e\n\u003cp data-start=\"2321\" data-end=\"2366\"\u003eElectrical terminal type: Non-removable nut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vb0oei\" data-start=\"2367\" data-end=\"2381\"\u003e\n\u003cp data-start=\"2369\" data-end=\"2381\"\u003eSkirt: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AUTOLITE","offers":[{"title":"Default Title","offer_id":46280549630151,"sku":"ELE1926","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-03-11142247_b347cdf9-3dcc-4831-a15f-b31b6ba2f6d4.png?v=1773267639","url":"https:\/\/mainstreeteshop.com\/products\/autolite-double-platinum-spark-plug-app5363","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}