{"product_id":"motorcraft-spark-plug-sp504x-agsf34fmx","title":"Motorcraft Spark Plug SP504X (AGSF34FMX)","description":"\u003ch2 data-section-id=\"rmw5tv\" data-start=\"191\" data-end=\"205\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"206\" data-end=\"581\"\u003eThe \u003cstrong data-start=\"210\" data-end=\"254\"\u003eMotorcraft Spark Plug SP504X (AGSF34FMX)\u003c\/strong\u003e is engineered to meet strict Ford engineering standards for performance, durability, and long service life. Designed to help maintain peak engine performance throughout its service interval, this spark plug supports efficient combustion, helps reduce misfires, improves fuel economy, and supports proper emissions performance.\u003c\/p\u003e\n\u003cp data-start=\"583\" data-end=\"908\"\u003eMotorcraft spark plugs are matched to specific engine applications to provide dependable ignition performance across a wide range of domestic and import vehicles. Built with high-quality materials, the SP504X is a reliable OEM-style replacement spark plug for maintaining long-term engine efficiency and consistent operation.\u003c\/p\u003e\n\u003cp data-start=\"910\" data-end=\"1131\"\u003eWith a typical service interval of \u003cstrong data-start=\"945\" data-end=\"972\"\u003e60,000 to 100,000 miles\u003c\/strong\u003e, the SP504X is designed for durability and confidence in daily driving and work applications where proper fitment and dependable spark delivery are essential.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1d7mrtu\" data-start=\"1133\" data-end=\"1144\"\u003eFeatures\u003c\/h2\u003e\n\u003cul data-start=\"1145\" data-end=\"1791\"\u003e\n\u003cli data-section-id=\"8yp3e\" data-start=\"1145\" data-end=\"1191\"\u003eMotorcraft spark plug part number \u003cstrong data-start=\"1181\" data-end=\"1191\"\u003eSP504X\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"yhfisi\" data-start=\"1192\" data-end=\"1219\"\u003ePlug number \u003cstrong data-start=\"1206\" data-end=\"1219\"\u003eAGSF34FMX\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1blfaa1\" data-start=\"1220\" data-end=\"1282\"\u003eMeets Ford engineering standards for quality and performance\u003c\/li\u003e\n\u003cli data-section-id=\"a7qv21\" data-start=\"1283\" data-end=\"1366\"\u003eDesigned to help maintain peak engine performance over extended service intervals\u003c\/li\u003e\n\u003cli data-section-id=\"10dla5u\" data-start=\"1367\" data-end=\"1420\"\u003eTypical service life of \u003cstrong data-start=\"1393\" data-end=\"1420\"\u003e60,000 to 100,000 miles\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ugrflr\" data-start=\"1421\" data-end=\"1472\"\u003eHelps reduce misfires and support fuel efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"14bfbuk\" data-start=\"1473\" data-end=\"1512\"\u003eSupports proper emissions performance\u003c\/li\u003e\n\u003cli data-section-id=\"1l73gvc\" data-start=\"1513\" data-end=\"1567\"\u003eEngine-specific design for reliable fit and function\u003c\/li\u003e\n\u003cli data-section-id=\"1e72eql\" data-start=\"1568\" data-end=\"1639\"\u003eBuilt with high-quality materials for dependable long-term durability\u003c\/li\u003e\n\u003cli data-section-id=\"1bvcu7t\" data-start=\"1640\" data-end=\"1699\"\u003eSuitable for a wide range of gasoline engine applications\u003c\/li\u003e\n\u003cli data-section-id=\"nalu00\" data-start=\"1700\" data-end=\"1723\"\u003e\n\u003cstrong data-start=\"1702\" data-end=\"1712\"\u003eBrand:\u003c\/strong\u003e Motorcraft\u003c\/li\u003e\n\u003cli data-section-id=\"89y2k3\" data-start=\"1724\" data-end=\"1769\"\u003e\n\u003cstrong data-start=\"1726\" data-end=\"1741\"\u003eDimensions:\u003c\/strong\u003e 1.00 L x 1.00 W x 3.38 H in\u003c\/li\u003e\n\u003cli data-section-id=\"vvowgz\" data-start=\"1770\" data-end=\"1791\"\u003e\n\u003cstrong data-start=\"1772\" data-end=\"1783\"\u003eWeight:\u003c\/strong\u003e 0.10 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1dixaz0\" data-start=\"1793\" data-end=\"1803\"\u003eFitment\u003c\/h2\u003e\n\u003cul data-start=\"1804\" data-end=\"2613\"\u003e\n\u003cli data-section-id=\"o5xc3r\" data-start=\"1804\" data-end=\"1836\"\u003e\n\u003cstrong data-start=\"1806\" data-end=\"1820\"\u003eFord E-150\u003c\/strong\u003e: 2003 – V6 4.2L\u003c\/li\u003e\n\u003cli data-section-id=\"1y3ogcv\" data-start=\"1837\" data-end=\"1880\"\u003e\n\u003cstrong data-start=\"1839\" data-end=\"1864\"\u003eFord E-150 Club Wagon\u003c\/strong\u003e: 2003 – V6 4.2L\u003c\/li\u003e\n\u003cli data-section-id=\"1arzwwq\" data-start=\"1881\" data-end=\"1928\"\u003e\n\u003cstrong data-start=\"1883\" data-end=\"1907\"\u003eFord E-150 Econoline\u003c\/strong\u003e: 1998–2002 – V6 4.2L\u003c\/li\u003e\n\u003cli data-section-id=\"11jp3yq\" data-start=\"1929\" data-end=\"1987\"\u003e\n\u003cstrong data-start=\"1931\" data-end=\"1966\"\u003eFord E-150 Econoline Club Wagon\u003c\/strong\u003e: 1998–2002 – V6 4.2L\u003c\/li\u003e\n\u003cli data-section-id=\"1hqbwk\" data-start=\"1988\" data-end=\"2020\"\u003e\n\u003cstrong data-start=\"1990\" data-end=\"2004\"\u003eFord E-250\u003c\/strong\u003e: 2003 – V6 4.2L\u003c\/li\u003e\n\u003cli data-section-id=\"8rpq0p\" data-start=\"2021\" data-end=\"2068\"\u003e\n\u003cstrong data-start=\"2023\" data-end=\"2047\"\u003eFord E-250 Econoline\u003c\/strong\u003e: 1998–2002 – V6 4.2L\u003c\/li\u003e\n\u003cli data-section-id=\"5q9pqa\" data-start=\"2069\" data-end=\"2108\"\u003e\n\u003cstrong data-start=\"2071\" data-end=\"2083\"\u003eFord EXP\u003c\/strong\u003e: 1987–1988 – L4 1.9L TBI\u003c\/li\u003e\n\u003cli data-section-id=\"y1wmee\" data-start=\"2109\" data-end=\"2198\"\u003e\n\u003cstrong data-start=\"2111\" data-end=\"2126\"\u003eFord Escort\u003c\/strong\u003e: 1987–1990 – L4 1.9L TBI; 1991–1996 – L4 1.9L; 1997–2002 – SOHC L4 2.0L\u003c\/li\u003e\n\u003cli data-section-id=\"156mgad\" data-start=\"2199\" data-end=\"2236\"\u003e\n\u003cstrong data-start=\"2201\" data-end=\"2215\"\u003eFord F-150\u003c\/strong\u003e: 1998–2008 – V6 4.2L\u003c\/li\u003e\n\u003cli data-section-id=\"niipk2\" data-start=\"2237\" data-end=\"2278\"\u003e\n\u003cstrong data-start=\"2239\" data-end=\"2262\"\u003eFord F-150 Heritage\u003c\/strong\u003e: 2004 – V6 4.2L\u003c\/li\u003e\n\u003cli data-section-id=\"1bzj0p6\" data-start=\"2279\" data-end=\"2321\"\u003e\n\u003cstrong data-start=\"2281\" data-end=\"2295\"\u003eFord Focus\u003c\/strong\u003e: 2000–2004 – SOHC L4 2.0L\u003c\/li\u003e\n\u003cli data-section-id=\"znrcj8\" data-start=\"2322\" data-end=\"2400\"\u003e\n\u003cstrong data-start=\"2324\" data-end=\"2344\"\u003eFord Thunderbird\u003c\/strong\u003e: 1989–1995 – Supercharged V6 3.8L \/ Super Coupe V6 3.8L\u003c\/li\u003e\n\u003cli data-section-id=\"15aq2jq\" data-start=\"2402\" data-end=\"2445\"\u003e\n\u003cstrong data-start=\"2404\" data-end=\"2423\"\u003eLincoln Mark LT\u003c\/strong\u003e: 2005–2008 – 4.2L Gas\u003c\/li\u003e\n\u003cli data-section-id=\"1ahwn28\" data-start=\"2447\" data-end=\"2511\"\u003e\n\u003cstrong data-start=\"2449\" data-end=\"2467\"\u003eMercury Cougar\u003c\/strong\u003e: 1989–1990 – Supercharged V6 3.8L \/ V6 3.8L\u003c\/li\u003e\n\u003cli data-section-id=\"1qnxr3j\" data-start=\"2512\" data-end=\"2550\"\u003e\n\u003cstrong data-start=\"2514\" data-end=\"2530\"\u003eMercury Lynx\u003c\/strong\u003e: 1987 – L4 1.9L TBI\u003c\/li\u003e\n\u003cli data-section-id=\"kmp6ny\" data-start=\"2551\" data-end=\"2613\"\u003e\n\u003cstrong data-start=\"2553\" data-end=\"2571\"\u003eMercury Tracer\u003c\/strong\u003e: 1991–1996 – L4 1.9L; 1997–1999 – L4 2.0L\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MOTORCRAFT","offers":[{"title":"Default Title","offer_id":46434842837191,"sku":"ELE2108","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-04-21103432.png?v=1776792896","url":"https:\/\/mainstreeteshop.com\/products\/motorcraft-spark-plug-sp504x-agsf34fmx","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}