{"product_id":"champion-588-spark-plug","title":"Champion 588 Spark Plug","description":"\u003ch2 data-section-id=\"rmw5tv\" data-start=\"156\" data-end=\"170\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-start=\"171\" data-end=\"585\"\u003eThe \u003cstrong data-start=\"175\" data-end=\"202\"\u003eChampion 588 Spark Plug\u003c\/strong\u003e is a military-spec replacement spark plug designed for specialized applications requiring a \u003cstrong data-start=\"295\" data-end=\"333\"\u003eshielded 5\/8-24 ordnance connector\u003c\/strong\u003e and dependable ignition performance. Built with a \u003cstrong data-start=\"384\" data-end=\"424\"\u003ecopper-cored nickel center electrode\u003c\/strong\u003e and standard J-gap ground design, this plug is engineered to provide strong ignitability with a lower voltage requirement than many precious metal plug designs.\u003c\/p\u003e\n\u003cp data-start=\"587\" data-end=\"1005\"\u003eDesigned for reliable service in demanding environments, the Champion 588 features a \u003cstrong data-start=\"672\" data-end=\"766\"\u003egasket seat, non-projected tip, resistor construction, and shielded terminal configuration\u003c\/strong\u003e to support proper fitment and performance in compatible systems. Its durable nickel electrode construction and controlled heat range help maintain stable ignition characteristics in engines requiring military-spec or shielded plug design.\u003c\/p\u003e\n\u003cp data-start=\"1007\" data-end=\"1190\"\u003eThis OE-style replacement plug is a practical choice for applications where \u003cstrong data-start=\"1083\" data-end=\"1175\"\u003eshielded terminal compatibility, accurate heat control, and dependable spark performance\u003c\/strong\u003e are essential.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1d7mrtu\" data-start=\"1192\" data-end=\"1203\"\u003eFeatures\u003c\/h2\u003e\n\u003cul data-start=\"1205\" data-end=\"1782\"\u003e\n\u003cli data-section-id=\"1z0kctn\" data-start=\"1205\" data-end=\"1262\"\u003e\n\u003cp data-start=\"1207\" data-end=\"1262\"\u003eMilitary-spec spark plug for specialized applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"76jo4i\" data-start=\"1263\" data-end=\"1301\"\u003e\n\u003cp data-start=\"1265\" data-end=\"1301\"\u003eShielded 5\/8-24 ordnance connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1shkbyd\" data-start=\"1302\" data-end=\"1385\"\u003e\n\u003cp data-start=\"1304\" data-end=\"1385\"\u003eCopper-cored nickel center electrode for improved conductivity and heat control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ockule\" data-start=\"1386\" data-end=\"1456\"\u003e\n\u003cp data-start=\"1388\" data-end=\"1456\"\u003eStandard J-gap ground electrode design for dependable ignitability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10npynz\" data-start=\"1457\" data-end=\"1519\"\u003e\n\u003cp data-start=\"1459\" data-end=\"1519\"\u003eLower voltage requirement than precious metal plug designs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bh4usm\" data-start=\"1520\" data-end=\"1582\"\u003e\n\u003cp data-start=\"1522\" data-end=\"1582\"\u003eResistor spark plug design for compatible ignition systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"82i44u\" data-start=\"1583\" data-end=\"1643\"\u003e\n\u003cp data-start=\"1585\" data-end=\"1643\"\u003eGasket seat for proper sealing in supported applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bwcy4i\" data-start=\"1644\" data-end=\"1692\"\u003e\n\u003cp data-start=\"1646\" data-end=\"1692\"\u003eNon-projected center electrode configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1utjxmu\" data-start=\"1693\" data-end=\"1755\"\u003e\n\u003cp data-start=\"1695\" data-end=\"1755\"\u003eStandard replacement design with durable nickel electrodes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1c1fudw\" data-start=\"1756\" data-end=\"1782\"\u003e\n\u003cp data-start=\"1758\" data-end=\"1782\"\u003eReplacement gasket: N678\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"1784\" data-end=\"1801\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-start=\"1803\" data-end=\"2436\"\u003e\n\u003cli data-section-id=\"1qpht86\" data-start=\"1803\" data-end=\"1835\"\u003e\n\u003cp data-start=\"1805\" data-end=\"1835\"\u003ePart Description: Spark Plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9ty3qu\" data-start=\"1836\" data-end=\"1855\"\u003e\n\u003cp data-start=\"1838\" data-end=\"1855\"\u003eBrand: Champion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"132rwse\" data-start=\"1856\" data-end=\"1882\"\u003e\n\u003cp data-start=\"1858\" data-end=\"1882\"\u003eThread Diameter: 14 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nfzpya\" data-start=\"1883\" data-end=\"1908\"\u003e\n\u003cp data-start=\"1885\" data-end=\"1908\"\u003eThread Pitch: 1.25 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"xcrequ\" data-start=\"1909\" data-end=\"1930\"\u003e\n\u003cp data-start=\"1911\" data-end=\"1930\"\u003eSeat Type: Gasket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1mbbkfj\" data-start=\"1931\" data-end=\"1957\"\u003e\n\u003cp data-start=\"1933\" data-end=\"1957\"\u003eReach: 9.5 mm (3\/8 in)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nurea5\" data-start=\"1958\" data-end=\"1988\"\u003e\n\u003cp data-start=\"1960\" data-end=\"1988\"\u003eHex Size: 13\/16 in (21 mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"uuepao\" data-start=\"1989\" data-end=\"2016\"\u003e\n\u003cp data-start=\"1991\" data-end=\"2016\"\u003eTerminal Type: Shielded\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1w42qpq\" data-start=\"2017\" data-end=\"2052\"\u003e\n\u003cp data-start=\"2019\" data-end=\"2052\"\u003eConnector Type: 5\/8-24 Ordnance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13mz55h\" data-start=\"2053\" data-end=\"2080\"\u003e\n\u003cp data-start=\"2055\" data-end=\"2080\"\u003eGap: 0.026 in (0.65 mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"l1rkc3\" data-start=\"2081\" data-end=\"2118\"\u003e\n\u003cp data-start=\"2083\" data-end=\"2118\"\u003eCenter Electrode Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"x2o8n1\" data-start=\"2119\" data-end=\"2154\"\u003e\n\u003cp data-start=\"2121\" data-end=\"2154\"\u003eCenter Electrode Type: Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"g7tx6h\" data-start=\"2155\" data-end=\"2184\"\u003e\n\u003cp data-start=\"2157\" data-end=\"2184\"\u003eProjection: Non-Projected\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"goyqgt\" data-start=\"2185\" data-end=\"2222\"\u003e\n\u003cp data-start=\"2187\" data-end=\"2222\"\u003eGround Electrode Material: Nickel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9eae43\" data-start=\"2223\" data-end=\"2258\"\u003e\n\u003cp data-start=\"2225\" data-end=\"2258\"\u003eGround Electrode Type: Standard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tcgx5m\" data-start=\"2259\" data-end=\"2291\"\u003e\n\u003cp data-start=\"2261\" data-end=\"2291\"\u003eGround Electrode Quantity: 1\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1k8b2y2\" data-start=\"2292\" data-end=\"2309\"\u003e\n\u003cp data-start=\"2294\" data-end=\"2309\"\u003eResistor: Yes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1rteve8\" data-start=\"2310\" data-end=\"2328\"\u003e\n\u003cp data-start=\"2312\" data-end=\"2328\"\u003eHeat Range: 14\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18ftxtm\" data-start=\"2329\" data-end=\"2369\"\u003e\n\u003cp data-start=\"2331\" data-end=\"2369\"\u003eTorque Specs, Cast Iron: 26–30 lb-ft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"lsuiyp\" data-start=\"2370\" data-end=\"2409\"\u003e\n\u003cp data-start=\"2372\" data-end=\"2409\"\u003eTorque Specs, Aluminum: 18–22 lb-ft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4ftpkk\" data-start=\"2410\" data-end=\"2436\"\u003e\n\u003cp data-start=\"2412\" data-end=\"2436\"\u003eReplacement Gasket: N678\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHAMPION","offers":[{"title":"Default Title","offer_id":46286472806599,"sku":"ELE2001","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-03-12164758.png?v=1773359147","url":"https:\/\/mainstreeteshop.com\/products\/champion-588-spark-plug","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}