{"product_id":"ngk-br6fs-spark-plug-4323-replaces-mercury-33-59571b-fits-mercruiser-2000-2006-omc-1982-1993","title":"NGK BR6FS Spark Plug 4323 - Replaces Mercury 33-59571B, Fits Mercruiser 2000-2006, OMC 1982-1993","description":"\u003cp\u003eThe NGK BR6FS is a standard NGK spark plug built on the same design NGK has supplied to original equipment manufacturers for decades. It uses a solid copper core center electrode for superior heat dissipation, strong conductivity, and a broad operating heat range, paired with a nickel center electrode tip and a nickel standard ground electrode. The plug carries a 5000 Ohm resistance rating and is finished with corrosion-resistant plating that keeps installation and removal easy even after extended service in a marine engine bay.\u003c\/p\u003e\u003cp\u003eThe NGK BR6FS (stock number 4323) is engineered for marine and marine-derived engine applications and fits Indmar engines up to 1997, Kodiak engines from 1999-2000, Marine Power engines from 1975-2000, Mercruiser engines from 2000-2006, and OMC engines from 1982-1993. It is a direct cross-reference to the Quicksilver\/Mercury 33-59571B, Yamaha BR6-FS000-00-00, and Evinrude\/Johnson 0509573 and 0503708 spark plugs, so it can be used as a like-for-like replacement in those applications. Always confirm the correct plug and gap setting against your engine's maintenance manual before installation, since using the wrong plug can reduce performance, hurt fuel economy, or damage the engine.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e NGK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e BR6FS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistance:\u003c\/strong\u003e 5000 Ohm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Configuration:\u003c\/strong\u003e Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Electrode Core Material:\u003c\/strong\u003e Nickel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Electrode Core Material:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Electrode Tip Material:\u003c\/strong\u003e Nickel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 087295143230\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIndmar - to 1997\u003c\/li\u003e\n\u003cli\u003eKodiak - 1999-2000\u003c\/li\u003e\n\u003cli\u003eMarine Power - 1975-2000\u003c\/li\u003e\n\u003cli\u003eMercruiser - 2000-2006\u003c\/li\u003e\n\u003cli\u003eOMC - 1982-1993\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eQuicksilver \/ Mercury 33-59571B\u003c\/li\u003e\n\u003cli\u003eYamaha BR6-FS000-00-00\u003c\/li\u003e\n\u003cli\u003eEvinrude \/ Johnson 0509573\u003c\/li\u003e\n\u003cli\u003eEvinrude \/ Johnson 0503708\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the NGK BR6FS spark plug fit?\u003c\/strong\u003e The NGK BR6FS (stock number 4323) fits Indmar engines up to 1997, Kodiak engines from 1999-2000, Marine Power engines from 1975-2000, Mercruiser engines from 2000-2006, and OMC engines from 1982-1993.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the NGK BR6FS a direct replacement for the Mercury 33-59571B spark plug?\u003c\/strong\u003e Yes, the NGK BR6FS cross-references directly to the Quicksilver\/Mercury 33-59571B spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the NGK BR6FS replace?\u003c\/strong\u003e The NGK BR6FS replaces Quicksilver\/Mercury 33-59571B, Yamaha BR6-FS000-00-00, and Evinrude\/Johnson 0509573 and 0503708.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the resistance rating of the NGK BR6FS?\u003c\/strong\u003e The NGK BR6FS carries a 5000 Ohm resistance rating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat materials make up this spark plug?\u003c\/strong\u003e The NGK BR6FS uses a copper center electrode core for heat dissipation and conductivity, with a nickel center electrode tip and a nickel standard ground electrode.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the NGK BR6FS spark plug weigh?\u003c\/strong\u003e The NGK BR6FS weighs 0.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the NGK BR6FS a genuine NGK part?\u003c\/strong\u003e Yes, the BR6FS (stock number 4323) is a genuine NGK Standard spark plug, not an aftermarket copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the NGK BR6FS fit Yamaha engines?\u003c\/strong\u003e The NGK BR6FS cross-references to the Yamaha BR6-FS000-00-00 spark plug as a replacement part number, though Yamaha is not listed among its direct engine fitments of Indmar, Kodiak, Marine Power, Mercruiser, and OMC.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ground electrode configuration does the NGK BR6FS use?\u003c\/strong\u003e The NGK BR6FS uses a standard ground electrode configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the NGK BR6FS work in a 2003 Mercruiser?\u003c\/strong\u003e Yes, the NGK BR6FS is listed to fit Mercruiser engines from 2000-2006, which covers a 2003 model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the NGK BR6FS?\u003c\/strong\u003e Each order includes one NGK BR6FS spark plug (stock number 4323).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the NGK BR6FS suppress radio-frequency interference?\u003c\/strong\u003e The NGK BR6FS carries a 5000 Ohm resistance rating, which is the resistor value used to suppress radio-frequency interference on resistor-type spark plugs.\u003c\/p\u003e","brand":"NGK Spark Plugs","offers":[{"title":"Default Title","offer_id":49028253679835,"sku":"NGK-BR6FS","price":3.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/NGK-BR6FS__37439.1558187581.500.750.jpg?v=1785165225","url":"https:\/\/www.goodvibesmarina.com\/products\/ngk-br6fs-spark-plug-4323-replaces-mercury-33-59571b-fits-mercruiser-2000-2006-omc-1982-1993","provider":"Good Vibes Marina","version":"1.0","type":"link"}