# NGK Iridium Stock Heat Spark Plugs Box of 4 (BKR5EIX) NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug. - RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs - Trivalent metal plating for superior anti-corrosion and anti-seizing properties - Outstanding acceleration, high fuel efficiency and durability - Fine iridium tip ensures durable and consistent spark This Part Fits: Year Make Model Submodel 2011-2014 Argo 6x6 650 HD Base 2016 Argo 6x6 750 HDi Base 2015-2016 Argo 6x6 Frontier EFI 694 Base 2015-2016 Argo 6x6 Frontier EFI 747 Base 2010 Argo 750 HDi 8x8 Base 2010 Argo 750 HDi 8x8 Special Edition Base 2011-2016 Argo 8x8 700 HD Base 2011-2016 Argo 8x8 750 HDi Base 2011-2016 Argo 8x8 750 HDi SE Base 2015-2016 Argo 8x8 Frontier EFI Base 2013-2016 Argo 8x8 XTI Base 2019 Argo Aurora 800 Base 2019 Argo Aurora 800 Limited Base 2019 Argo Aurora 800 SX Base 2019 Argo Aurora 800 SX Hunt Master Base 2019 Argo Aurora 950 SX Base 2006-2011 Argo Avenger 700 8x8 Base 2010-2011,2013 Argo Avenger 750 EFI 8x8 Base 2019 Argo Avenger 800 Base 2019 Argo Avenger 800 Hunt Master Base 2017-2018 Argo Avenger 8x8 Hunt Master Base 2017 Argo Avenger 8x8 Hunt Master R Base 2017 Argo Avenger 8x8 Hunt Master X Base 2017 Argo Avenger 8x8 Hunt Master Z Base 2017 Argo Avenger 8x8 Hunt Master ZX Base 2017-2018 Argo Avenger 8x8 LX Base 2017-2018 Argo Avenger 8x8 Responder Base 2017 Argo Avenger 8x8 Responder X Base 2017 Argo Avenger 8x8 S Base 2017-2018 Argo Avenger 8x8 ST Base 2018 Argo Avenger 8x8 ST LE Base 2017-2018 Argo Avenger 8x8 STR Base 2017 Argo Avenger 8x8 STX Base 2018 Argo Avenger 8x8 XT Base 2019 Argo Avenger Pro 800 XT Base 2019 Argo Avenger Pro 800 XT Responder Base 2019 Argo Bigfoot 800 MX6 Base 2019 Argo Bigfoot 800 MX8 Base 2019 Argo Conquest 800 Outfitter Base 2017 Argo Conquest 8x8 Explorer XTi Base 2017 Argo Conquest 8x8 i Base 2017 Argo Conquest 8x8 Lineman XTi Base 2017-2018 Argo Conquest 8x8 Outfitter XTi Base 2017 Argo Conquest 8x8 Outfitter XTi-Z Base 2018 Argo Conquest 8x8 XT-L Base 2018 Argo Conquest 8x8 XT-X Base 2017 Argo Conquest 8x8 XTi Base 2019 Argo Conquest Pro 800 XT Base 2019 Argo Conquest Pro 800 XT-L Base 2019 Argo Conquest Pro 800 XT-X Base 2010-2014 Argo Frontier 580 6x6 Base 2019 Argo Frontier 600 6x6 Base 2010 Argo Frontier 650 6x6 Base 2010-2014,2019 Argo Frontier 650 8x8 Base 2017 Argo Frontier 6x6 Base 2017 Argo Frontier 6x6 S Base 2017-2018 Argo Frontier 6x6 Scout S Base 2017 Argo Frontier 6x6 Scout ST Base 2018 Argo Frontier 6x6 SE Base 2017 Argo Frontier 6x6 ST Base 2018 Argo Frontier 6x6 ST LE Base 2019 Argo Frontier 700 6x6 Base 2019 Argo Frontier 700 8x8 Base 2019 Argo Frontier 700 Scout 6x6 Base 2019 Argo Frontier 750 Scout 8x8 Base 2017 Argo Frontier 8x8 Responder S Base 2017-2018 Argo Frontier 8x8 S Base 2018 Argo Frontier 8x8 S LE Base 2017-2018 Argo Frontier 8x8 Scout S Base 2016 Argo HuntMaster Base 2016 Argo Outfitter Base 2007 Argo Response 8x8 Base 2016 Argo Scout 6x6 Base 2016 Argo Scout 8x8 Base 2006-2007 Argo Vanguard 2 6x6 Base 2006-2007 Argo Vanguard 6x6 Base 2000-2001 Bentley Arnage Green Label 2002-2009 Bentley Arnage R 2000-2002 Bentley Arnage Red Label 2001-2009 Bentley Arnage RL 2002-2009 Bentley Arnage T 1996-2003,2006-2008 Bentley Azure Base 1999-2002 Bentley Azure Mulliner 1993-1998 Bentley Brooklands Base 1993-1998 Bentley Brooklands LWB 1985-1995 Bentley Continental Base 1993-2003 Bentley Continental R 1999-2000 Bentley Continental SC 1997-2003 Bentley Continental T 1984 Bentley Corniche Base 1984,1986-1991 Bentley Eight Base 1984-1986 Bentley Mulsanne Base 1985-1986 Bentley Mulsanne L 1987-1992 Bentley Mulsanne S 1988-1996 Bentley Turbo R Base 1992-1998 Bentley Turbo R LWB 1997-2001 Cadillac Catera Base 1999-2001 Cadillac Catera Sport 2010-2016 Case IH Scout Base 1992-1993 Chevrolet Beretta GTZ 1994 Chevrolet Beretta Z26 2004-2005 Chrysler Sebring Limited 2007 Cub Cadet 4x2 FIS / FIS SE Base 2007 Cub Cadet 4x4 Base 2007 Cub Cadet 4x4D Base 2007 Cub Cadet Big Country 4x2 Base 2009-2014 Cub Cadet Volunteer 4x2 Base 2008 Cub Cadet Volunteer 4x2 FIS Base 2009-2014 Cub Cadet Volunteer 4x4 Base 2008-2018 Cub Cadet Volunteer 4x4 EFI Base 2009 Cub Cadet Volunteer 4x4 EFI w/Cab Base 2008 Cub Cadet Volunteer 4x4 Trail Base 2009 Cub Cadet Volunteer 4x4 w/Cab Base 2018 Cub Cadet Volunteer WT Base 2016-2018 Cub Cadet Volunteer WT Cab Base 1995-1996 Dodge Ram 2500 Base 1995-1997 Dodge Ram 3500 Base 2004-2005 Dodge Stratus R/T 1993-1997 Geo Prizm Base 1993-1997 Geo Prizm LSi 1993-1997 Jaguar Vanden Plas Base 1997 Jaguar XJR Base 1987-1990 Jeep Cherokee Base 1987-1988 Jeep Cherokee Chief 1987-1990 Jeep Cherokee Laredo 1987-1990 Jeep Cherokee Limited 1987-1990 Jeep Cherokee Pioneer 1989-1990 Jeep Cherokee Sport 1987-1990 Jeep Comanche Base 1987-1988 Jeep Comanche Chief 1988-1990 Jeep Comanche Eliminator 1987-1988 Jeep Comanche Laredo 1987-1990 Jeep Comanche Pioneer 1987 Jeep Wagoneer Base 1987-1990 Jeep Wagoneer Limited 2012-2016 John Deere Gator XUV 550 Base 2012-2016 John Deere Gator XUV 550 S4 Base 2016-2017 John Deere Gator XUV 560 Base 2016-2017 John Deere Gator XUV 560 S4 Base 2018 John Deere Gator XUV 560E Base 2018 John Deere Gator XUV 560E S4 Base 1995 Kia Sportage Base 1995 Kia Sportage EX 1996-1997 Lexus LX450 Base 2004-2005 Mazda Miata Mazdaspeed 1990-1993 Mercedes-Benz 300CE Base 1993 Mercedes-Benz 300E 2.8 1993 Mercedes-Benz 300E Base 1992-1993 Mercedes-Benz 300SE Base 1990-1993 Mercedes-Benz 300SL Base 1993 Mercedes-Benz 300TE Base 1992-1993 Mercedes-Benz 400E Base 1992 Mercedes-Benz 400SE Base 1993 Mercedes-Benz 400SEL Base 1992-1993 Mercedes-Benz 500E Base 1993 Mercedes-Benz 500SEC Base 1992-1993 Mercedes-Benz 500SEL Base 1990-1993 Mercedes-Benz 500SL Base 1993 Mercedes-Benz 600SEC Base 1992-1993 Mercedes-Benz 600SEL Base 1993 Mercedes-Benz 600SL Base 1994-1996 Mercedes-Benz C220 Base 1997-1998 Mercedes-Benz C230 Base 1994-1997 Mercedes-Benz C280 Base 1995-1997 Mercedes-Benz C36 AMG Base 1994-1997 Mercedes-Benz E320 Base 1994-1995,1997 Mercedes-Benz E420 Base 1994 Mercedes-Benz E500 Base 1994-1999 Mercedes-Benz S320 LWB 1994-1999 Mercedes-Benz S320 SWB 1994-1997 Mercedes-Benz S420 Base 1994-1997 Mercedes-Benz S500 Base 1994-1997 Mercedes-Benz S600 Base 1994-1997 Mercedes-Benz SL320 Base 1994-1997 Mercedes-Benz SL500 Base 1994-1997 Mercedes-Benz SL600 Base 1993-1998 Mercury Villager GS 1993-1998 Mercury Villager LS 1994-1998 Mercury Villager Nautica 2004-2005 Mitsubishi Eclipse GT 2004-2005 Mitsubishi Eclipse Spyder GT 2009-2010 Mitsubishi Lancer GTS 2010 Mitsubishi Lancer GTS Sportback 2008-2010 Mitsubishi Outlander ES 2008-2010 Mitsubishi Outlander SE 1993-1998 Nissan Quest GXE 1993-1998 Nissan Quest XE 1992-1993 Oldsmobile Achieva S 1992,1994 Oldsmobile Achieva SC 1992-1993 Oldsmobile Achieva SCX 1994 Oldsmobile Achieva SL 1989-1991 Peugeot 405 DL 1989-1991 Peugeot 405 S 1998-1999 Polaris Big Boss 500 6x6 Base 1995-1998 Polaris Magnum 425 2x4 Base 1995-1998 Polaris Magnum 425 4x4 Base 1996-1997 Polaris Magnum 425 6x6 Base 2002 Polaris Magnum 500 2x4 Base 2000-2003 Polaris Magnum 500 4x4 Base 2002 Polaris Magnum 500 RMK Base ## Details - **Price:** 74.61 CAD - **Vendor:** NGK - **Type:** Spark Plugs ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 74.61 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - out of package - Photo - out of package --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-iridium-stock-heat-spark-plugs-box-of-4-bkr5eix) > Updated: 2026-06-28