{"product_id":"ngk-4323-br6fs-nickel-spark-plug","title":"NGK 4323 BR6FS Nickel Spark Plug","description":"\u003ch3 data-section-id=\"hxsibk\" data-start=\"125\" data-end=\"142\"\u003eDescription\u003c\/h3\u003e\n\u003cp data-start=\"143\" data-end=\"482\"\u003eThe NGK 4323 BR6FS Nickel Spark Plug is a reliable OE-style replacement designed for marine and industrial engine applications. Built with a durable nickel alloy center electrode and a 98% pure copper core, this plug delivers consistent ignition performance, efficient heat dissipation, and dependable operation under demanding conditions.\u003c\/p\u003e\n\u003cp data-start=\"484\" data-end=\"932\"\u003eFeaturing a non-projected tip design and tapered seat, the BR6FS is well-suited for marine engines where durability and stable combustion are critical. NGK’s high-grade alumina silicate ceramic insulator enhances dielectric strength and heat transfer, while triple sealing prevents combustion gas leakage. Trivalent metal plating ensures resistance to corrosion and seizing, making installation and removal easier even in harsh marine environments.\u003c\/p\u003e\n\u003chr data-start=\"934\" data-end=\"937\"\u003e\n\u003ch3 data-section-id=\"q4c1cr\" data-start=\"939\" data-end=\"952\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul data-start=\"953\" data-end=\"1399\"\u003e\n\u003cli data-section-id=\"epv7mb\" data-start=\"953\" data-end=\"1017\"\u003eOE-style nickel alloy center electrode for reliable ignition\u003c\/li\u003e\n\u003cli data-section-id=\"qfh00p\" data-start=\"1018\" data-end=\"1065\"\u003eSolid terminal design for secure connection\u003c\/li\u003e\n\u003cli data-section-id=\"umk6qp\" data-start=\"1066\" data-end=\"1120\"\u003e98% pure copper core for superior heat dissipation\u003c\/li\u003e\n\u003cli data-section-id=\"1abahbu\" data-start=\"1121\" data-end=\"1182\"\u003eNon-projected tip for stable combustion in marine engines\u003c\/li\u003e\n\u003cli data-section-id=\"aloxbv\" data-start=\"1183\" data-end=\"1251\"\u003eHigh-strength ceramic insulator for durability and heat transfer\u003c\/li\u003e\n\u003cli data-section-id=\"6ukcbm\" data-start=\"1252\" data-end=\"1298\"\u003eTriple gasket sealing prevents gas leakage\u003c\/li\u003e\n\u003cli data-section-id=\"13p8nz9\" data-start=\"1299\" data-end=\"1350\"\u003eTrivalent plating resists corrosion and seizing\u003c\/li\u003e\n\u003cli data-section-id=\"1rkrqjz\" data-start=\"1351\" data-end=\"1399\"\u003eIdeal for marine and industrial applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1401\" data-end=\"1404\"\u003e\n\u003ch3 data-section-id=\"1ke4z4i\" data-start=\"1406\" data-end=\"1425\"\u003eSpecifications:\u003c\/h3\u003e\n\u003cp data-start=\"1427\" data-end=\"1438\"\u003e\u003cstrong data-start=\"1427\" data-end=\"1438\"\u003eGeneral\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1439\" data-end=\"1581\"\u003e\n\u003cli data-section-id=\"uqjxg5\" data-start=\"1439\" data-end=\"1461\"\u003ePart Number: BR6FS\u003c\/li\u003e\n\u003cli data-section-id=\"s57w7r\" data-start=\"1462\" data-end=\"1484\"\u003eStock Number: 4323\u003c\/li\u003e\n\u003cli data-section-id=\"rrh4cj\" data-start=\"1485\" data-end=\"1502\"\u003eHeat Range: 6\u003c\/li\u003e\n\u003cli data-section-id=\"odlz33\" data-start=\"1503\" data-end=\"1529\"\u003eResistor: Yes (5k Ohm)\u003c\/li\u003e\n\u003cli data-section-id=\"1j8ux9p\" data-start=\"1530\" data-end=\"1554\"\u003eGap: 0.8 mm (0.031\")\u003c\/li\u003e\n\u003cli data-section-id=\"shjk7f\" data-start=\"1555\" data-end=\"1581\"\u003eElectrode Type: Nickel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1583\" data-end=\"1592\"\u003e\u003cstrong data-start=\"1583\" data-end=\"1592\"\u003eShell\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1593\" data-end=\"1723\"\u003e\n\u003cli data-section-id=\"1d457ld\" data-start=\"1593\" data-end=\"1620\"\u003eThread Size: M14 x 1.25\u003c\/li\u003e\n\u003cli data-section-id=\"1sl50u2\" data-start=\"1621\" data-end=\"1643\"\u003eSeat Type: Tapered\u003c\/li\u003e\n\u003cli data-section-id=\"1uvdd88\" data-start=\"1644\" data-end=\"1671\"\u003eReach: 11.6 mm (0.460\")\u003c\/li\u003e\n\u003cli data-section-id=\"m7gk6c\" data-start=\"1672\" data-end=\"1698\"\u003eHex Size: 5\/8\" (16 mm)\u003c\/li\u003e\n\u003cli data-section-id=\"1anguoj\" data-start=\"1699\" data-end=\"1723\"\u003eTerminal Type: Solid\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1725\" data-end=\"1739\"\u003e\u003cstrong data-start=\"1725\" data-end=\"1739\"\u003eElectrodes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1740\" data-end=\"1865\"\u003e\n\u003cli data-section-id=\"17yut90\" data-start=\"1740\" data-end=\"1781\"\u003eCenter Electrode: Nickel, copper core\u003c\/li\u003e\n\u003cli data-section-id=\"1egn37a\" data-start=\"1782\" data-end=\"1810\"\u003eGround Electrode: Nickel\u003c\/li\u003e\n\u003cli data-section-id=\"g7tx6h\" data-start=\"1811\" data-end=\"1840\"\u003eProjection: Non-Projected\u003c\/li\u003e\n\u003cli data-section-id=\"r7e56b\" data-start=\"1841\" data-end=\"1865\"\u003eConfiguration: J-Gap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1867\" data-end=\"1870\"\u003e\n\u003ch3 data-section-id=\"15hzzm7\" data-start=\"1872\" data-end=\"1885\"\u003eFitment\u003c\/h3\u003e\n\u003cp data-start=\"1887\" data-end=\"1927\"\u003e\u003cstrong data-start=\"1887\" data-end=\"1927\"\u003eMarine Applications (Common Engines)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1929\" data-end=\"1941\"\u003e\u003cstrong data-start=\"1929\" data-end=\"1941\"\u003eCrusader\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1942\" data-end=\"1970\"\u003e\n\u003cli data-section-id=\"1cjrehm\" data-start=\"1942\" data-end=\"1957\"\u003e7.4L HO MPI\u003c\/li\u003e\n\u003cli data-section-id=\"o6cgms\" data-start=\"1958\" data-end=\"1970\"\u003e8.2L MPI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1972\" data-end=\"1982\"\u003e\u003cstrong data-start=\"1972\" data-end=\"1982\"\u003eIndmar\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1983\" data-end=\"2050\"\u003e\n\u003cli data-section-id=\"1r9rut5\" data-start=\"1983\" data-end=\"2016\"\u003eGM Small Block \u0026amp; Big Block V8\u003c\/li\u003e\n\u003cli data-section-id=\"1tx0hqz\" data-start=\"2017\" data-end=\"2031\"\u003eGM 3.0L L4\u003c\/li\u003e\n\u003cli data-section-id=\"12kc8q5\" data-start=\"2032\" data-end=\"2050\"\u003eGM 4.3L V6 EFI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2052\" data-end=\"2062\"\u003e\u003cstrong data-start=\"2052\" data-end=\"2062\"\u003eKodiak\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2063\" data-end=\"2104\"\u003e\n\u003cli data-section-id=\"virh50\" data-start=\"2063\" data-end=\"2083\"\u003e4.3L V6 (220 HP)\u003c\/li\u003e\n\u003cli data-section-id=\"1shz3s8\" data-start=\"2084\" data-end=\"2104\"\u003e7.4L V8 (350 HP)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2106\" data-end=\"2122\"\u003e\u003cstrong data-start=\"2106\" data-end=\"2122\"\u003eMarine Power\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2123\" data-end=\"2187\"\u003e\n\u003cli data-section-id=\"ppgvkh\" data-start=\"2123\" data-end=\"2134\"\u003e3.0L L4\u003c\/li\u003e\n\u003cli data-section-id=\"1wc3fv1\" data-start=\"2135\" data-end=\"2146\"\u003e4.3L V6\u003c\/li\u003e\n\u003cli data-section-id=\"1sgj5q2\" data-start=\"2147\" data-end=\"2187\"\u003e5.0L \/ 5.7L \/ 7.4L \/ 8.2L V8 engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2189\" data-end=\"2203\"\u003e\u003cstrong data-start=\"2189\" data-end=\"2203\"\u003eMerCruiser\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2204\" data-end=\"2312\"\u003e\n\u003cli data-section-id=\"3925yp\" data-start=\"2204\" data-end=\"2225\"\u003eGM 2.5L \/ 3.0L L4\u003c\/li\u003e\n\u003cli data-section-id=\"3ejvpa\" data-start=\"2226\" data-end=\"2266\"\u003eGM V6 \u0026amp; V8 (Small Block \u0026amp; Big Block)\u003c\/li\u003e\n\u003cli data-section-id=\"19k2oni\" data-start=\"2267\" data-end=\"2312\"\u003eFord Small Block V8 (Inboard\/Stern Drive)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2314\" data-end=\"2329\"\u003e\u003cstrong data-start=\"2314\" data-end=\"2329\"\u003eVolvo Penta\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2330\" data-end=\"2400\"\u003e\n\u003cli data-section-id=\"1y6bgxo\" data-start=\"2330\" data-end=\"2358\"\u003e5.7L, 7.4L, 8.2L engines\u003c\/li\u003e\n\u003cli data-section-id=\"1e6zy6r\" data-start=\"2359\" data-end=\"2400\"\u003eVarious AQ and Duoprop series engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2402\" data-end=\"2419\"\u003e\u003cstrong data-start=\"2402\" data-end=\"2419\"\u003eYamaha Marine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2420\" data-end=\"2460\"\u003e\n\u003cli data-section-id=\"ppgvkh\" data-start=\"2420\" data-end=\"2431\"\u003e3.0L L4\u003c\/li\u003e\n\u003cli data-section-id=\"1rdzx58\" data-start=\"2432\" data-end=\"2460\"\u003eV6 and V8 marine engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2462\" data-end=\"2471\"\u003e\u003cstrong data-start=\"2462\" data-end=\"2471\"\u003eOther\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2472\" data-end=\"2536\"\u003e\n\u003cli data-section-id=\"16u1c63\" data-start=\"2472\" data-end=\"2491\"\u003eOMC Stern Drive\u003c\/li\u003e\n\u003cli data-section-id=\"fo9utk\" data-start=\"2492\" data-end=\"2536\"\u003eU.S. Marine engines (5.0L \/ 5.7L \/ 7.4L)\u003cbr\u003e\u003cbr\u003e\n\u003ch3 data-section-id=\"1dlidzb\" data-start=\"2543\" data-end=\"2565\"\u003ePerformance Notes:\u003c\/h3\u003e\n\u003cul data-start=\"2566\" data-end=\"2835\"\u003e\n\u003cli data-section-id=\"1deaivh\" data-start=\"2566\" data-end=\"2624\"\u003eDesigned for marine and heavy-duty engine environments\u003c\/li\u003e\n\u003cli data-section-id=\"dv8avc\" data-start=\"2625\" data-end=\"2697\"\u003eNon-projected tip helps prevent pre-ignition in certain applications\u003c\/li\u003e\n\u003cli data-section-id=\"1ojksin\" data-start=\"2698\" data-end=\"2767\"\u003eIdeal replacement for engines originally using nickel spark plugs\u003c\/li\u003e\n\u003cli data-section-id=\"1f7sfnb\" data-start=\"2768\" data-end=\"2835\"\u003eNot recommended for engines requiring platinum or iridium plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":46440138211527,"sku":"ELE2165","price":2.99,"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-4323-br6fs-nickel-spark-plug","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}