NGK

NGK Iridium Premium Spark Plug Box of 4 (BR9EIX)

NGK3981

$130.67 AUD

$60.99 AUD
Price Includes all Duties & Taxes
Shipping from USA warehouse. 2–3 day processing; 7–10 day delivery. Special-order dispatch timing to be confirmed. Bulky or heavy items may require a freight quote.
10 in stock — ready to ship

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
2002-2005 Aprilia RS 50 Base
1986-1988 Arctic Cat Cheetah 500 F/C Base
1988-1991 Arctic Cat Cheetah Touring Base
1985-1990 Arctic Cat Cougar Base
1989-1990 Arctic Cat Cougar Mountain Cat Base
1985 Arctic Cat Cougar SE Base
1974 Arctic Cat El Tigre 295 Base
1977,1987-1988 Arctic Cat El Tigre 5000 Base
1981 Arctic Cat El Tigre 5000 F/C Base
1986 Arctic Cat Jag Base
1981 Arctic Cat Jag 4000 Base
1987-1988 Arctic Cat Jag 440 Base
1989-1990 Arctic Cat Jag AFS Base
1992-1993 Arctic Cat Lynx Mountain Cat Base
1979-1981,1985-1991 Arctic Cat Pantera Base
1978 Arctic Cat Pantera 5000 F/A Base
1978 Arctic Cat Pantera 5000 F/C Base
1980-1981 Arctic Cat Pantera ES (Electric Start) Base
1979-1981,1984-1990 Arctic Cat Panther Base
1977-1978 Arctic Cat Panther 4000 Base
1973 Arctic Cat Panther 440 Base
1990 Arctic Cat Panther Mountain Cat Base
1981 Arctic Cat Panther West Base
1997 Arctic Cat Powder Extreme Base
1994-1997 Arctic Cat Puma Base
1994-1997 Arctic Cat Puma 2-Up Base
1973 Arctic Cat Puma 440 Base
1994-1997 Arctic Cat Puma Deluxe Base
1987-1990 Arctic Cat Super Jag Base
1980-1981 Arctic Cat Trail Cat 400 Base
1990 Arctic Cat Wildcat 650 Base
1990 Arctic Cat Wildcat Mountain Cat Base
1977 Arctic Cat Z 250 Base
1977-1979 Bultaco Pursang 250 Base
1977 Can-Am 175 MX-3 Base
1980 Can-Am 400 MX-6 Base
2012-2018 Cobra CX65 Base
1998-1999 Cobra KING Base
2010 Gas Gas EC 125 Base
2001 Gas Gas EC Rookie 50 Base
2004 Gas Gas SM 50 Base
1976-1977 Harley-Davidson SS125 Base
1976-1977 Harley-Davidson SS175 Base
1975-1977 Harley-Davidson SS250 Base
1974-1975 Harley-Davidson SX175 Base
1976-1977 Harley-Davidson SXT125 Base
1984-1986 Honda ATC250R Base
1999-2007 Honda CR125R Base
1973-1976 Honda CR250M Base
1978-1981,1987-1988 Honda CR250R Base
1983-1984 Honda CR60R Base
1980-1985 Honda CR80R Base
1982-1984 Honda FL250 Odyssey Base
2004 Honda NSR50 Base
1987-1988 Honda TRX250R Base
1998-2006,2009-2010,2012 Husqvarna CR125 Base
2010 Husqvarna SM 125 Base
1991 Husqvarna WME 250 Base
1998-2006,2009-2012 Husqvarna WR125 Base
2010 Husqvarna WRE 125 Base
1992-1993,1996-1997 Husqvarna WXC 250 Base
1990-1991,1994-1997 Husqvarna WXE 250 Base
1991 Husqvarna WXE 260 Base
1982-1986 Husqvarna XC125 Base
1981-1982 John Deere Liquifire 440 Base
1981-1982 John Deere Sportfire Base
1981-1982 John Deere Trailfire 440 Base
1980-1982 Kawasaki KDX175 Base
1983-1996 Kawasaki KDX200 Base
1984,1991-1994 Kawasaki KDX250 Base
1984 Kawasaki KDX80 Base
1982 Kawasaki KE125 Base
1974-1976,1978-1982,1994-2002 Kawasaki KX125 Base
1974-1976,1978-1982,1986-1987,1989-1991 Kawasaki KX250 Base
1975-1976 Kawasaki KX400 Base
1980-1981 Kawasaki KX420 Base
1983-1984 Kawasaki KX500 Base
1983-2001 Kawasaki KX60 Base
1980-1991 Kawasaki KX80 Base
1987-1991 Kawasaki KX80 Big Wheel Base
1983-1985 Kawasaki ZX750 GPZ Base
1984-1985 Kawasaki ZX750E Turbo Base
2007 KTM 105 SX Base
1993 KTM 125 EXC Base
1997-1998 KTM 125 Sting Base
2003-2004 KTM 200 SX Base
1990-1995 KTM 250 EXC Base
1984-1988 KTM 250 MXC Base
1992-1995 KTM 250 SX Base
1990-1992 KTM 300 DXC Base
1990-1995 KTM 300 EXC Base
1990,1993-1994 KTM 300 MXC Base
1992 KTM 300 SX Base
1989-1990 KTM 350 EXC Base
1985-1988 KTM 350 MXC Base
1985-1986 KTM 500 MXC Base
1992 KTM 500 SX Base
1993-1994 KTM 550 MXC Base
2007 KTM 85 SX (17/14) Base
2007 KTM 85 SX (19/16) Base
2008 KTM 85 XC Base
1999-2006 LEM LX4 Base
2007 Piaggio Typhoon Base
2006-2010 Polini X1R Base
2006-2010 Polini X3P Air Base
2006-2010 Polini X3R Base
2006-2010 Polini X5P Air Base
2007-2010 Polini X5P Liquid Base
2010 Polini XP65R Base
1971 Sno-Jet S/S Jet 292 Base
1971 Sno-Jet S/S Jet 338 Base
1971 Sno-Jet S/S Jet 433 Base
1972 Sno-Jet SST 292 Base
1972 Sno-Jet SST 338 Base
1973-1974 Sno-Jet SST 340 Base
1972 Sno-Jet SST 433 Base
1973-1976 Sno-Jet SST 440 Base
1975-1976 Sno-Jet SST F/A 340 Base
1975-1976 Sno-Jet SST F/A 440 Base
1972 Sno-Jet Star-Jet +2 338 Base
1970-1972 Sno-Jet Star-Jet 292 Hirth Base
1971,1973 Sno-Jet Star-Jet 338 Base
1973 Sno-Jet Star-Jet 433 Base
1970 Sno-Jet Super-Jet 338 Base
1972 Sno-Jet Super-Jet 433 Base
1976-1977 Suzuki GT250 Base
1985-1992 Suzuki LT250R QuadRacer Base
1978 Suzuki PE175 Base
1980 Suzuki PE250 Base
1980-1981 Suzuki PE400 Base
1976-1981 Suzuki RM100 Base
1975-1980,1982-1995 Suzuki RM125 Base
1976-1981 Suzuki RM250 Base
1976-1977 Suzuki RM370 Base
1982 Suzuki RM465 Base
2003 Suzuki RM60 Base
1982,1984-1985 Suzuki RM80 Base
1993-1998 Suzuki RMX250 Base
1981 Suzuki RS250 Base
1995-2003 TM 125E Base
1995-2003 TM 250E Base
1996-2003 TM 300E Base
1995-2000 TM 80E Base
2009 TM EN125 Base
2009 TM EN144 Base
1995-2003,2009-2012 TM MX125 Base
2009,2011 TM MX144 Base
1995-2003,2011-2012 TM MX250 Base
1998-2003,2011-2012 TM MX300 Base
1995-2000 TM MX80 Base
2009 TM MX85 (17/14) Base
2009 TM MX85 (19/16) Base
2009 TM SMM125 Base
2009 TM SMR125 Base
2001 Vespa ET2 Base
1969-1971 Yamaha AT1 Base
1970-1971 Yamaha AT1M Base
1972 Yamaha AT2M Base
1980-1981 Yamaha DT175 Base
1974 Yamaha DT360 Base
1975-1976 Yamaha DT400 Base
1972-1973 Yamaha EW643 Base
1976-1978 Yamaha EX340 Base
1976-1981 Yamaha EX440 Base
1973-1974 Yamaha GP292 Base
1974-1975 Yamaha GPX338 Base
1974-1975 Yamaha GPX433 Base
1980-1981 Yamaha IT125 Base
1979-1983 Yamaha IT175 Base
1984-1985 Yamaha IT200 Base
1977-1983 Yamaha IT250 Base
1974-1976 Yamaha MX125 Base
1975 Yamaha MX400 Base
1970-1971 Yamaha RT1 Base
1972-1973 Yamaha RT2 Base
1973 Yamaha RT3 Base
1973,1978 Yamaha SR433 Base
1973,1975 Yamaha SR643 Base
1976-1980 Yamaha SRX440 Base
1969 Yamaha SS338 Base
1971 Yamaha SS433 Base
1976 Yamaha TY175 Base
1992 Yamaha WR200 Base
1982 Yamaha YZ100 Base
1974-1976,1982-2017 Yamaha YZ125 Base
1974-1982,1984-1987 Yamaha YZ250 Base
1980 Yamaha YZ50 Base
1981-1983 Yamaha YZ60 Base
1982-1983 Yamaha YZ80 Base

REVRUNNERS

Why buy from us?

Built by enthusiasts, for enthusiasts – we live and breathe this

Only premium, proven brands – no compromises on quality

Guaranteed fitment – get it right the first time, every time

Personal, knowledgeable support – we treat your build like our own