{"product_id":"ngk-94201-silzkgr8b8s-laser-iridium-spark-plug","title":"NGK 94201 SILZKGR8B8S Laser Iridium Spark Plug","description":"\u003ch3 data-section-id=\"3h1ku8\" data-start=\"57\" data-end=\"72\"\u003eDescription\u003c\/h3\u003e\n\u003cp data-start=\"73\" data-end=\"418\"\u003eThe \u003cstrong data-start=\"77\" data-end=\"111\"\u003eNGK SILZKGR8B8S (Stock #94201)\u003c\/strong\u003e is a \u003cstrong data-start=\"117\" data-end=\"153\"\u003epremium Laser Iridium spark plug\u003c\/strong\u003e engineered for modern high-efficiency engines. Designed as an \u003cstrong data-start=\"216\" data-end=\"248\"\u003eOE (original equipment) plug\u003c\/strong\u003e, it combines an \u003cstrong data-start=\"265\" data-end=\"303\"\u003eiridium fine-wire center electrode\u003c\/strong\u003e with a \u003cstrong data-start=\"311\" data-end=\"353\"\u003eplatinum ground electrode (SPE design)\u003c\/strong\u003e for exceptional ignitability, durability, and long service life.\u003c\/p\u003e\n\u003cp data-start=\"420\" data-end=\"556\"\u003eThis plug is commonly used in \u003cstrong data-start=\"450\" data-end=\"487\"\u003eBMW and Mini turbocharged engines\u003c\/strong\u003e, where precise ignition and extended service intervals are critical.\u003c\/p\u003e\n\u003chr data-start=\"558\" data-end=\"561\"\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"563\" data-end=\"579\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"580\" data-end=\"1101\"\u003e\n\u003cli data-section-id=\"22zig\" data-start=\"580\" data-end=\"649\"\u003e\n\u003cstrong data-start=\"582\" data-end=\"610\"\u003eLaser Iridium technology\u003c\/strong\u003e – superior performance and longevity\u003c\/li\u003e\n\u003cli data-section-id=\"o2n4su\" data-start=\"650\" data-end=\"742\"\u003e\n\u003cstrong data-start=\"652\" data-end=\"690\"\u003eFine-wire iridium center electrode\u003c\/strong\u003e – ultra-high durability (6x harder than platinum)\u003c\/li\u003e\n\u003cli data-section-id=\"wcin8f\" data-start=\"743\" data-end=\"820\"\u003e\n\u003cstrong data-start=\"745\" data-end=\"780\"\u003eSquare Platinum Electrode (SPE)\u003c\/strong\u003e – improved ignitability and even wear\u003c\/li\u003e\n\u003cli data-section-id=\"1xoupwu\" data-start=\"821\" data-end=\"906\"\u003e\n\u003cstrong data-start=\"823\" data-end=\"854\"\u003eExtended metal shell design\u003c\/strong\u003e – optimized for modern engine combustion chambers\u003c\/li\u003e\n\u003cli data-section-id=\"6sqsl6\" data-start=\"907\" data-end=\"972\"\u003e\n\u003cstrong data-start=\"909\" data-end=\"924\"\u003eCopper core\u003c\/strong\u003e – excellent heat dissipation and conductivity\u003c\/li\u003e\n\u003cli data-section-id=\"18b3l06\" data-start=\"973\" data-end=\"1036\"\u003e\n\u003cstrong data-start=\"975\" data-end=\"996\"\u003eTrivalent plating\u003c\/strong\u003e – corrosion and anti-seize protection\u003c\/li\u003e\n\u003cli data-section-id=\"bz37ne\" data-start=\"1037\" data-end=\"1101\"\u003e\n\u003cstrong data-start=\"1039\" data-end=\"1061\"\u003eOE-specific design\u003c\/strong\u003e – built for exact engine requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1103\" data-end=\"1106\"\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"1108\" data-end=\"1126\"\u003eSpecifications\u003c\/h3\u003e\n\u003cp data-start=\"1128\" data-end=\"1139\"\u003e\u003cstrong data-start=\"1128\" data-end=\"1139\"\u003eGeneral\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1140\" data-end=\"1312\"\u003e\n\u003cli data-section-id=\"110j21x\" data-start=\"1140\" data-end=\"1170\"\u003ePart Number: \u003cstrong data-start=\"1155\" data-end=\"1170\"\u003eSILZKGR8B8S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1baq32n\" data-start=\"1171\" data-end=\"1196\"\u003eStock Number: \u003cstrong data-start=\"1187\" data-end=\"1196\"\u003e94201\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1u8gh0z\" data-start=\"1197\" data-end=\"1241\"\u003ePlug Type: \u003cstrong data-start=\"1210\" data-end=\"1241\"\u003eLaser Iridium (Performance)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ajl07h\" data-start=\"1242\" data-end=\"1261\"\u003eHeat Range: \u003cstrong data-start=\"1256\" data-end=\"1261\"\u003e8\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11ss3yv\" data-start=\"1262\" data-end=\"1293\"\u003eResistor: \u003cstrong data-start=\"1274\" data-end=\"1293\"\u003eYes (5000 Ohms)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"y0jz20\" data-start=\"1294\" data-end=\"1312\"\u003eGap: \u003cstrong data-start=\"1301\" data-end=\"1312\"\u003e0.75 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1314\" data-end=\"1336\"\u003e\u003cstrong data-start=\"1314\" data-end=\"1336\"\u003eShell \/ Dimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1337\" data-end=\"1505\"\u003e\n\u003cli data-section-id=\"1smw0ea\" data-start=\"1337\" data-end=\"1366\"\u003eThread Size: \u003cstrong data-start=\"1352\" data-end=\"1366\"\u003eM12 - 1.25\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1shhx80\" data-start=\"1367\" data-end=\"1387\"\u003eReach: \u003cstrong data-start=\"1376\" data-end=\"1387\"\u003e26.5 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xe2ous\" data-start=\"1388\" data-end=\"1416\"\u003eHex Size: \u003cstrong data-start=\"1400\" data-end=\"1416\"\u003e14 mm Bi-Hex\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1a929km\" data-start=\"1417\" data-end=\"1438\"\u003eSeat Type: \u003cstrong data-start=\"1430\" data-end=\"1438\"\u003eFlat\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1j8plr\" data-start=\"1439\" data-end=\"1465\"\u003eWasher Included: \u003cstrong data-start=\"1458\" data-end=\"1465\"\u003eYes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jwsjsz\" data-start=\"1466\" data-end=\"1505\"\u003eSkirt: \u003cstrong data-start=\"1475\" data-end=\"1505\"\u003eYes (Extended Metal Shell)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1507\" data-end=\"1521\"\u003e\u003cstrong data-start=\"1507\" data-end=\"1521\"\u003eElectrodes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1522\" data-end=\"1698\"\u003e\n\u003cli data-section-id=\"e6mw5w\" data-start=\"1522\" data-end=\"1563\"\u003eCenter Electrode: \u003cstrong data-start=\"1542\" data-end=\"1563\"\u003eIridium Fine Wire\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ok1fc2\" data-start=\"1564\" data-end=\"1630\"\u003eGround Electrode: \u003cstrong data-start=\"1584\" data-end=\"1630\"\u003ePlatinum (SPE – Square Platinum Electrode)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xrf2fq\" data-start=\"1631\" data-end=\"1664\"\u003eGround Configuration: \u003cstrong data-start=\"1655\" data-end=\"1664\"\u003eJ-Gap\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5auefs\" data-start=\"1665\" data-end=\"1698\"\u003eProjection: \u003cstrong data-start=\"1679\" data-end=\"1698\"\u003eLong Projection\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1700\" data-end=\"1709\"\u003e\u003cstrong data-start=\"1700\" data-end=\"1709\"\u003eOther\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1710\" data-end=\"1847\"\u003e\n\u003cli data-section-id=\"16oh4iw\" data-start=\"1710\" data-end=\"1734\"\u003eTerminal Type: \u003cstrong data-start=\"1727\" data-end=\"1734\"\u003eCup\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1x1xde6\" data-start=\"1735\" data-end=\"1768\"\u003eInsulator Material: \u003cstrong data-start=\"1757\" data-end=\"1768\"\u003eCeramic\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"na34s2\" data-start=\"1769\" data-end=\"1800\"\u003eInsulator Height: \u003cstrong data-start=\"1789\" data-end=\"1800\"\u003e51.0 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gnbgt8\" data-start=\"1801\" data-end=\"1847\"\u003eGrade Type: \u003cstrong data-start=\"1815\" data-end=\"1847\"\u003ePerformance \/ OE Replacement\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1849\" data-end=\"1852\"\u003e\n\u003ch3 data-section-id=\"11y8do\" data-start=\"1854\" data-end=\"1876\"\u003eFitment Highlights\u003c\/h3\u003e\n\u003cp data-start=\"1877\" data-end=\"1951\"\u003ePrimarily used in \u003cstrong data-start=\"1895\" data-end=\"1939\"\u003emodern BMW and Mini turbocharged engines\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cp data-start=\"1953\" data-end=\"1960\"\u003e\u003cstrong data-start=\"1953\" data-end=\"1960\"\u003eBMW\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1961\" data-end=\"2229\"\u003e\n\u003cli data-section-id=\"822uh\" data-start=\"1961\" data-end=\"2003\"\u003e2 Series: \u003cstrong data-start=\"1973\" data-end=\"1989\"\u003e230i \/ M240i\u003c\/strong\u003e (2017–2021)\u003c\/li\u003e\n\u003cli data-section-id=\"qmj30v\" data-start=\"2004\" data-end=\"2045\"\u003e3 Series: \u003cstrong data-start=\"2016\" data-end=\"2031\"\u003e330i \/ 340i\u003c\/strong\u003e (2016–2019)\u003c\/li\u003e\n\u003cli data-section-id=\"k0k03n\" data-start=\"2046\" data-end=\"2087\"\u003e4 Series: \u003cstrong data-start=\"2058\" data-end=\"2073\"\u003e430i \/ 440i\u003c\/strong\u003e (2017–2020)\u003c\/li\u003e\n\u003cli data-section-id=\"b8seqm\" data-start=\"2088\" data-end=\"2136\"\u003e5 Series: \u003cstrong data-start=\"2100\" data-end=\"2122\"\u003e530i \/ 540i \/ 530e\u003c\/strong\u003e (2017–2020)\u003c\/li\u003e\n\u003cli data-section-id=\"1rnjfyt\" data-start=\"2137\" data-end=\"2186\"\u003e7 Series: \u003cstrong data-start=\"2149\" data-end=\"2172\"\u003e740i \/ 740e \/ 740Le\u003c\/strong\u003e (2016–2019)\u003c\/li\u003e\n\u003cli data-section-id=\"1czka04\" data-start=\"2187\" data-end=\"2229\"\u003eX Series: \u003cstrong data-start=\"2199\" data-end=\"2217\"\u003eX1, X2, X3, X4\u003c\/strong\u003e (2016–2019)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2231\" data-end=\"2239\"\u003e\u003cstrong data-start=\"2231\" data-end=\"2239\"\u003eMini\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2240\" data-end=\"2308\"\u003e\n\u003cli data-section-id=\"1t8taag\" data-start=\"2240\" data-end=\"2308\"\u003e\n\u003cstrong data-start=\"2242\" data-end=\"2275\"\u003eCooper \/ Clubman \/ Countryman\u003c\/strong\u003e (2014–2020, 1.5L \u0026amp; 2.0L engines)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2310\" data-end=\"2313\"\u003e\n\u003ch3 data-section-id=\"n0zlr1\" data-start=\"2315\" data-end=\"2336\"\u003ePerformance Notes\u003c\/h3\u003e\n\u003cul data-start=\"2337\" data-end=\"2733\"\u003e\n\u003cli data-section-id=\"11myfcs\" data-start=\"2337\" data-end=\"2396\"\u003eDesigned for \u003cstrong data-start=\"2352\" data-end=\"2394\"\u003eturbocharged, high-compression engines\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ixqobu\" data-start=\"2397\" data-end=\"2468\"\u003e\n\u003cstrong data-start=\"2399\" data-end=\"2435\"\u003eLong projection + extended shell\u003c\/strong\u003e improves combustion efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"1kgfo2i\" data-start=\"2469\" data-end=\"2555\"\u003eProvides \u003cstrong data-start=\"2480\" data-end=\"2553\"\u003ebetter fuel efficiency, smoother idle, and improved throttle response\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1lm9b4g\" data-start=\"2556\" data-end=\"2650\"\u003eTypically supports \u003cstrong data-start=\"2577\" data-end=\"2648\"\u003elong service intervals (often 60k–100k miles depending on OEM spec)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nihngu\" data-start=\"2651\" data-end=\"2733\"\u003eShould \u003cstrong data-start=\"2660\" data-end=\"2709\"\u003enot be substituted with standard nickel plugs\u003c\/strong\u003e in these applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2735\" data-end=\"2738\"\u003e\n\u003ch3 data-section-id=\"wv8cei\" data-start=\"2740\" data-end=\"2751\"\u003eSummary\u003c\/h3\u003e\n\u003cp data-start=\"2752\" data-end=\"3071\"\u003eThe \u003cstrong data-start=\"2756\" data-end=\"2783\"\u003eNGK SILZKGR8B8S (94201)\u003c\/strong\u003e is a \u003cstrong data-start=\"2789\" data-end=\"2829\"\u003ehigh-end OE Laser Iridium spark plug\u003c\/strong\u003e featuring a \u003cstrong data-start=\"2842\" data-end=\"2938\"\u003elong-reach extended shell, fine-wire iridium center electrode, and platinum ground electrode\u003c\/strong\u003e. It’s specifically engineered for \u003cstrong data-start=\"2973\" data-end=\"3004\"\u003emodern BMW and Mini engines\u003c\/strong\u003e, delivering \u003cstrong data-start=\"3017\" data-end=\"3070\"\u003emaximum ignitability, durability, and performance\u003c\/strong\u003e.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":46445355794631,"sku":"ELE2211","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2026-04-22133125_602e1da4-a5a5-4fc5-adb1-30696b575a78.png?v=1776897422","url":"https:\/\/mainstreeteshop.com\/products\/ngk-94201-silzkgr8b8s-laser-iridium-spark-plug","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}