{"product_id":"autolite-2546-copper-spark-plug","title":"Autolite 2546 Copper Spark Plug","description":"\u003ch3 data-section-id=\"hxsibk\" data-start=\"86\" data-end=\"103\"\u003eDescription\u003c\/h3\u003e\n\u003cp data-start=\"104\" data-end=\"400\"\u003eThe Autolite 2546 Copper Spark Plug is designed to deliver reliable performance, quick starts, and consistent ignition for everyday driving applications. Built with a copper core center electrode, it provides excellent heat transfer and helps reduce fouling, ensuring dependable engine operation.\u003c\/p\u003e\n\u003cp data-start=\"402\" data-end=\"737\"\u003eEngineered with durability in mind, this spark plug features a corrosion-resistant nickel-plated shell and high nickel alloy electrodes for extended service life. The high alumina ceramic insulator enhances strength and thermal conductivity, making it a solid choice for maintaining optimal engine performance in standard applications.\u003c\/p\u003e\n\u003chr data-start=\"739\" data-end=\"742\"\u003e\n\u003ch3 data-section-id=\"q4c1cr\" data-start=\"744\" data-end=\"757\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul data-start=\"758\" data-end=\"1234\"\u003e\n\u003cli data-section-id=\"dt65jc\" data-start=\"758\" data-end=\"843\"\u003eCopper core center electrode for improved heat dissipation and fouling resistance\u003c\/li\u003e\n\u003cli data-section-id=\"197r3jm\" data-start=\"844\" data-end=\"920\"\u003eNickel-plated shell for corrosion resistance and long-lasting durability\u003c\/li\u003e\n\u003cli data-section-id=\"1xevyho\" data-start=\"921\" data-end=\"989\"\u003eHigh nickel alloy center and ground electrodes for extended life\u003c\/li\u003e\n\u003cli data-section-id=\"v8jbea\" data-start=\"990\" data-end=\"1061\"\u003eHigh alumina ceramic insulator for superior strength and insulation\u003c\/li\u003e\n\u003cli data-section-id=\"p2g1pn\" data-start=\"1062\" data-end=\"1125\"\u003eDesigned for quick starts and consistent engine performance\u003c\/li\u003e\n\u003cli data-section-id=\"190ht7d\" data-start=\"1126\" data-end=\"1194\"\u003eIdeal for everyday driving and standard replacement applications\u003c\/li\u003e\n\u003cli data-section-id=\"kxr808\" data-start=\"1195\" data-end=\"1234\"\u003eBacked by a 2-year limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1236\" data-end=\"1239\"\u003e\n\u003ch3 data-section-id=\"1ke4z4i\" data-start=\"1241\" data-end=\"1260\"\u003eSpecifications:\u003c\/h3\u003e\n\u003cul data-start=\"1261\" data-end=\"1711\"\u003e\n\u003cli data-section-id=\"t1nkhe\" data-start=\"1261\" data-end=\"1280\"\u003eBrand: Autolite\u003c\/li\u003e\n\u003cli data-section-id=\"6c6nfn\" data-start=\"1281\" data-end=\"1302\"\u003ePart Number: 2546\u003c\/li\u003e\n\u003cli data-section-id=\"1r4n8m3\" data-start=\"1303\" data-end=\"1333\"\u003eResistor: Yes (5,000 Ohms)\u003c\/li\u003e\n\u003cli data-section-id=\"qaigu4\" data-start=\"1334\" data-end=\"1384\"\u003eElectrode Material: Nickel (center and ground)\u003c\/li\u003e\n\u003cli data-section-id=\"v0tj1a\" data-start=\"1385\" data-end=\"1418\"\u003eCenter Electrode Core: Copper\u003c\/li\u003e\n\u003cli data-section-id=\"1d457ld\" data-start=\"1419\" data-end=\"1446\"\u003eThread Size: M14 x 1.25\u003c\/li\u003e\n\u003cli data-section-id=\"132rwse\" data-start=\"1447\" data-end=\"1473\"\u003eThread Diameter: 14 mm\u003c\/li\u003e\n\u003cli data-section-id=\"1qbe7z6\" data-start=\"1474\" data-end=\"1492\"\u003eHex Size: 5\/8\"\u003c\/li\u003e\n\u003cli data-section-id=\"1sl50u2\" data-start=\"1493\" data-end=\"1515\"\u003eSeat Type: Tapered\u003c\/li\u003e\n\u003cli data-section-id=\"es7ath\" data-start=\"1516\" data-end=\"1535\"\u003ePre-Gap: 1.4 mm\u003c\/li\u003e\n\u003cli data-section-id=\"rrh54y\" data-start=\"1536\" data-end=\"1553\"\u003eHeat Range: 7\u003c\/li\u003e\n\u003cli data-section-id=\"1tcgx5m\" data-start=\"1554\" data-end=\"1586\"\u003eGround Electrode Quantity: 1\u003c\/li\u003e\n\u003cli data-section-id=\"b10wp6\" data-start=\"1587\" data-end=\"1623\"\u003eTerminal Type: Non-removable nut\u003c\/li\u003e\n\u003cli data-section-id=\"1odzs0e\" data-start=\"1624\" data-end=\"1655\"\u003eInsulator Material: Ceramic\u003c\/li\u003e\n\u003cli data-section-id=\"1tfd1k1\" data-start=\"1656\" data-end=\"1711\"\u003eCenter Electrode Design: Standard (long projection)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1713\" data-end=\"1716\"\u003e\n\u003ch3 data-section-id=\"ysdoie\" data-start=\"1718\" data-end=\"1741\"\u003eFitment Highlights:\u003c\/h3\u003e\n\u003cp data-start=\"1742\" data-end=\"1832\"\u003eCompatible with select Ford and Mercury vehicles equipped with 3.8L V6 engines, including:\u003c\/p\u003e\n\u003cul data-start=\"1834\" data-end=\"2013\"\u003e\n\u003cli data-section-id=\"y4hncr\" data-start=\"1834\" data-end=\"1858\"\u003eFord LTD (1984–1986)\u003c\/li\u003e\n\u003cli data-section-id=\"1dsfuz4\" data-start=\"1859\" data-end=\"1887\"\u003eFord Mustang (1984–1986)\u003c\/li\u003e\n\u003cli data-section-id=\"1t9km27\" data-start=\"1888\" data-end=\"1920\"\u003eFord Thunderbird (1984–1987)\u003c\/li\u003e\n\u003cli data-section-id=\"1d4kuie\" data-start=\"1921\" data-end=\"1950\"\u003eMercury Capri (1984–1986)\u003c\/li\u003e\n\u003cli data-section-id=\"5fhfkj\" data-start=\"1951\" data-end=\"1981\"\u003eMercury Cougar (1984–1987)\u003c\/li\u003e\n\u003cli data-section-id=\"k80nzz\" data-start=\"1982\" data-end=\"2013\"\u003eMercury Marquis (1984–1986)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2015\" data-end=\"2080\"\u003e\u003cem data-start=\"2015\" data-end=\"2080\"\u003e(Always verify exact fitment by year, make, model, and engine.)\u003c\/em\u003e\u003c\/p\u003e","brand":"AUTOLITE","offers":[{"title":"Default Title","offer_id":46445584285895,"sku":"ELE1568","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-04-23135420_79aae385-5fae-4445-a55c-5469ab4e8506.png?v=1776978735","url":"https:\/\/mainstreeteshop.com\/products\/autolite-2546-copper-spark-plug","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}