{"product_id":"ngk-4548-cr9ek-multi-ground-spark-plug","title":"NGK 4548 CR9EK Multi-Ground Spark Plug","description":"\u003ch3 data-section-id=\"hxsibk\" data-start=\"49\" data-end=\"66\"\u003eDescription\u003c\/h3\u003e\n\u003cp data-start=\"67\" data-end=\"391\"\u003eThe NGK 4548 CR9EK is a standard OE-style nickel spark plug featuring a \u003cstrong data-start=\"139\" data-end=\"179\"\u003edual (multi-ground) electrode design\u003c\/strong\u003e for enhanced durability and consistent ignition. Built with NGK’s proven “yellow box” technology, it delivers reliable performance in high-revving engines, especially in motorcycles and powersports applications.\u003c\/p\u003e\n\u003cp data-start=\"393\" data-end=\"636\"\u003eIts copper core ensures excellent heat dissipation, while the dual ground electrodes extend service life by reducing electrode wear. Designed for OE applications, this plug provides stable combustion, smoother operation, and dependable starts.\u003c\/p\u003e\n\u003chr data-start=\"638\" data-end=\"641\"\u003e\n\u003ch3 data-section-id=\"1sboupi\" data-start=\"643\" data-end=\"661\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"662\" data-end=\"1089\"\u003e\n\u003cli data-section-id=\"10toafa\" data-start=\"662\" data-end=\"732\"\u003e\n\u003cstrong data-start=\"664\" data-end=\"704\"\u003eMulti-ground (dual electrode) design\u003c\/strong\u003e for extended service life\u003c\/li\u003e\n\u003cli data-section-id=\"yz6d0f\" data-start=\"733\" data-end=\"796\"\u003eOE-equivalent nickel center electrode for reliable ignition\u003c\/li\u003e\n\u003cli data-section-id=\"1q79pqb\" data-start=\"797\" data-end=\"848\"\u003e98% pure copper core for superior heat transfer\u003c\/li\u003e\n\u003cli data-section-id=\"yr6gi6\" data-start=\"849\" data-end=\"900\"\u003e5k Ohm resistor reduces electrical interference\u003c\/li\u003e\n\u003cli data-section-id=\"62mpan\" data-start=\"901\" data-end=\"968\"\u003eTrivalent metal plating for corrosion and anti-seize protection\u003c\/li\u003e\n\u003cli data-section-id=\"1t2tjd3\" data-start=\"969\" data-end=\"1033\"\u003eHigh-grade ceramic insulator for durability and heat control\u003c\/li\u003e\n\u003cli data-section-id=\"bc4ylr\" data-start=\"1034\" data-end=\"1089\"\u003eIdeal for high-performance and high-revving engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1091\" data-end=\"1094\"\u003e\n\u003ch3 data-section-id=\"e5mrjc\" data-start=\"1096\" data-end=\"1116\"\u003eSpecifications\u003c\/h3\u003e\n\u003cp data-start=\"1118\" data-end=\"1129\"\u003e\u003cstrong data-start=\"1118\" data-end=\"1129\"\u003eGeneral\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1130\" data-end=\"1243\"\u003e\n\u003cli data-section-id=\"1s5qqzk\" data-start=\"1130\" data-end=\"1152\"\u003ePart Number: CR9EK\u003c\/li\u003e\n\u003cli data-section-id=\"s1461o\" data-start=\"1153\" data-end=\"1175\"\u003eStock Number: 4548\u003c\/li\u003e\n\u003cli data-section-id=\"1ly1jgp\" data-start=\"1176\" data-end=\"1200\"\u003eHeat Range: 9 (cold)\u003c\/li\u003e\n\u003cli data-section-id=\"odlz33\" data-start=\"1201\" data-end=\"1227\"\u003eResistor: Yes (5k Ohm)\u003c\/li\u003e\n\u003cli data-section-id=\"1g0m8el\" data-start=\"1228\" data-end=\"1243\"\u003eGap: 0.7 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1245\" data-end=\"1254\"\u003e\u003cstrong data-start=\"1245\" data-end=\"1254\"\u003eShell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1255\" data-end=\"1375\"\u003e\n\u003cli data-section-id=\"16ikvlu\" data-start=\"1255\" data-end=\"1281\"\u003eThread Size: M10 x 1.0\u003c\/li\u003e\n\u003cli data-section-id=\"p65b94\" data-start=\"1282\" data-end=\"1310\"\u003eSeat Type: Flat (Gasket)\u003c\/li\u003e\n\u003cli data-section-id=\"ftj7p5\" data-start=\"1311\" data-end=\"1329\"\u003eReach: 19.0 mm\u003c\/li\u003e\n\u003cli data-section-id=\"m7gk6c\" data-start=\"1330\" data-end=\"1356\"\u003eHex Size: 5\/8\" (16 mm)\u003c\/li\u003e\n\u003cli data-section-id=\"cvaggw\" data-start=\"1357\" data-end=\"1375\"\u003eTerminal: Stud\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1377\" data-end=\"1391\"\u003e\u003cstrong data-start=\"1377\" data-end=\"1391\"\u003eElectrodes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1392\" data-end=\"1543\"\u003e\n\u003cli data-section-id=\"nd77wa\" data-start=\"1392\" data-end=\"1437\"\u003eCenter Electrode: Nickel with copper core\u003c\/li\u003e\n\u003cli data-section-id=\"r7aoih\" data-start=\"1438\" data-end=\"1487\"\u003eGround Electrodes: Dual nickel (multi-ground)\u003c\/li\u003e\n\u003cli data-section-id=\"r7e56b\" data-start=\"1488\" data-end=\"1512\"\u003eConfiguration: J-Gap\u003c\/li\u003e\n\u003cli data-section-id=\"vlp78y\" data-start=\"1513\" data-end=\"1543\"\u003eProjection: Mid Projection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1545\" data-end=\"1548\"\u003e\n\u003ch3 data-section-id=\"biql0s\" data-start=\"1550\" data-end=\"1574\"\u003eFitment Highlights\u003c\/h3\u003e\n\u003cp data-start=\"1576\" data-end=\"1588\"\u003e\u003cstrong data-start=\"1576\" data-end=\"1588\"\u003eKawasaki\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1589\" data-end=\"1693\"\u003e\n\u003cli data-section-id=\"1lda0v6\" data-start=\"1589\" data-end=\"1610\"\u003eZ750S (2005–2006)\u003c\/li\u003e\n\u003cli data-section-id=\"1uigxu9\" data-start=\"1611\" data-end=\"1634\"\u003eZ800 \/ ZR800 (2016)\u003c\/li\u003e\n\u003cli data-section-id=\"5y72ux\" data-start=\"1635\" data-end=\"1668\"\u003eZRX1100 \/ ZRX1200 (1999–2005)\u003c\/li\u003e\n\u003cli data-section-id=\"17pbkil\" data-start=\"1669\" data-end=\"1693\"\u003eZX-9R, ZX-11, ZX-12R\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1695\" data-end=\"1705\"\u003e\u003cstrong data-start=\"1695\" data-end=\"1705\"\u003eSuzuki\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1706\" data-end=\"1831\"\u003e\n\u003cli data-section-id=\"1b87i5q\" data-start=\"1706\" data-end=\"1737\"\u003eDR350 \/ DR350SE (1994–1999)\u003c\/li\u003e\n\u003cli data-section-id=\"1ooq68v\" data-start=\"1738\" data-end=\"1768\"\u003eGSF600S Bandit (1996–2003)\u003c\/li\u003e\n\u003cli data-section-id=\"1rsuig2\" data-start=\"1769\" data-end=\"1809\"\u003eGSX600F \/ GSX750F Katana (1996–2006)\u003c\/li\u003e\n\u003cli data-section-id=\"1hrbdae\" data-start=\"1810\" data-end=\"1831\"\u003eTL1000R \/ TL1000S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1833\" data-end=\"1844\"\u003e\u003cstrong data-start=\"1833\" data-end=\"1844\"\u003eTriumph\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1845\" data-end=\"1994\"\u003e\n\u003cli data-section-id=\"gksp3l\" data-start=\"1845\" data-end=\"1872\"\u003eDaytona 600 \/ 650 \/ 675\u003c\/li\u003e\n\u003cli data-section-id=\"1kggg8d\" data-start=\"1873\" data-end=\"1906\"\u003eSpeed Triple \/ Sprint \/ TT600\u003c\/li\u003e\n\u003cli data-section-id=\"1w6am28\" data-start=\"1907\" data-end=\"1935\"\u003eStreet Triple 675 series\u003c\/li\u003e\n\u003cli data-section-id=\"1kiiqau\" data-start=\"1936\" data-end=\"1994\"\u003eTiger 800 \/ 900 \/ 1200 series (multiple trims \u0026amp; years)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1996\" data-end=\"2006\"\u003e\u003cstrong data-start=\"1996\" data-end=\"2006\"\u003eYamaha\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2007\" data-end=\"2075\"\u003e\n\u003cli data-section-id=\"ga5afx\" data-start=\"2007\" data-end=\"2029\"\u003eYZF-R1 (2004–2008)\u003c\/li\u003e\n\u003cli data-section-id=\"1l75wsf\" data-start=\"2030\" data-end=\"2055\"\u003eFZ1 \/ FZ6 (2004–2009)\u003c\/li\u003e\n\u003cli data-section-id=\"190ytv1\" data-start=\"2056\" data-end=\"2075\"\u003eWR250R \/ WR250X\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2077\" data-end=\"2084\"\u003e\u003cstrong data-start=\"2077\" data-end=\"2084\"\u003eKTM\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2085\" data-end=\"2104\"\u003e\n\u003cli data-section-id=\"1b60ipq\" data-start=\"2085\" data-end=\"2104\"\u003e250 SX-F (2013)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2106\" data-end=\"2109\"\u003e\n\u003ch3 data-section-id=\"309kgt\" data-start=\"2111\" data-end=\"2134\"\u003ePerformance Notes\u003c\/h3\u003e\n\u003cul data-start=\"2135\" data-end=\"2447\"\u003e\n\u003cli data-section-id=\"uya0ey\" data-start=\"2135\" data-end=\"2227\"\u003e\n\u003cstrong data-start=\"2137\" data-end=\"2167\"\u003eHeat range 9 = colder plug\u003c\/strong\u003e, ideal for high-performance engines and aggressive riding\u003c\/li\u003e\n\u003cli data-section-id=\"1kngx4p\" data-start=\"2228\" data-end=\"2309\"\u003eMulti-ground design improves longevity but does \u003cstrong data-start=\"2278\" data-end=\"2307\"\u003enot increase spark energy\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s6my8p\" data-start=\"2310\" data-end=\"2361\"\u003eBest used where OEM specifies dual-ground plugs\u003c\/li\u003e\n\u003cli data-section-id=\"2thtlj\" data-start=\"2362\" data-end=\"2447\"\u003eNot recommended to replace single-electrode precious metal plugs unless specified\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":46440190345415,"sku":"ELE2168","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-04-23102317.png?v=1776965004","url":"https:\/\/mainstreeteshop.com\/products\/ngk-4548-cr9ek-multi-ground-spark-plug","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}