Name: NGK Spark Plugs 3981 NGK Iridium IX Spark Plug
SKU: 3981
Price: 8.99 USD
Availability: InStock

NGK SPARK PLUGS part description

BR9EIX S-PLUGS

Product Description

NGK Iridium IX Spark Plug

Features & Benefits

SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
IRIDIUM ALLOY CENTER ELECTRODE: Iridium's density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs

Product Attributes

Hex Size	13/16 IN
Insulator Height	55.00 MM
Manufacturer Heat Range	9
Seat Type	Flat
Reach	0.750 IN
Thread Diameter	14.00 MM
Stock Number	3981
Part Number	BR9EIX
Resistance	5000.0 82
Ground Electrode Tip Design	Taper Cut
Ground Configuration	J-Gap
Ground Electrode Core Material	Nickel
Electrical Terminal Type	Removable Nut
Center Electrode Core Material	Copper
Center Electrode Tip Material	Iridium
Pre-Gap Size	.032 IN
Ground Electrode Quantity	1
Short Style Spark Plug	No
Service Number	BR9EIX
Washer Included	Yes
Grade Type	Performance
Hex Size	13/16"
Insulator Height	2.13 IN
Thread Diameter	0.551 IN
Insulator Material	Ceramic
Resistor Type	Yes
6648	0.0 IN
Ground Electrode Tip Material	Nickel
9459	No
9506	0.06 IN
9608	Fine Wire
9745	Crush
9805	Non-Projected

Additional Information

Harmonized Tariff Code (HTS)	8511100000
Warranty Time UOM	MO
Warranty Time	2
Country of Origin (Primary)	JP
UPC	00087295139813
VMRS Code	033003005
UNSPSC	26101732

Part Interchanges

Fits Vehicles

Polaris 850 PRO-RMK 163 3in. (2019)
Polaris 850 PRO-RMK 155 3in. (2019)
Sno-Jet S/S Jet 433 (1971)
Arctic Cat Jag 4000 (1981)
Gas Gas EC 125 (2010)
Sno-Jet Super-Jet 433 (1972)
Sno-Jet Super-Jet 338 (1970)
Sno-Jet Star-Jet 433 (1973)
Sno-Jet Star-Jet 338 (1971, 1973)
Sno-Jet Star-Jet 292 Hirth (1970-1972)
Sno-Jet Star-Jet +2 338 (1972)
Sno-Jet SST F/A 440 (1975-1976)
Sno-Jet SST F/A 340 (1975-1976)
Sno-Jet SST 440 (1973-1976)
Sno-Jet SST 433 (1972)
Sno-Jet SST 340 (1973-1974)
Sno-Jet SST 338 (1972)
Sno-Jet SST 292 (1972)
Sno-Jet S/S Jet 338 (1971)
Sno-Jet S/S Jet 292 (1971)
Arctic Cat Panther 440 (1973)
Cobra CX65 (2012-2018)
Arctic Cat El Tigre 5000 F/C (1981)
Harley-Davidson SXT125 (1976-1977)
Harley-Davidson SX175 (1974-1975)
Harley-Davidson SS250 (1975-1977)
Harley-Davidson SS175 (1976-1977)
Harley-Davidson SS125 (1976-1977)
Polini XP65R (2010)
Polini X5P Liquid (2007-2010)
Polini X5P Air (2006-2010)
Polini X3R (2006-2010)
Polini X3P Air (2006-2010)
Polini X1R (2006-2010)
Husqvarna WRE 125 (2010)
Husqvarna SM 125 (2010)
TM SMR125 (2009)
TM SMM125 (2009)
TM MX85 (19/16) (2009)
TM MX85 (17/14) (2009)
TM MX144 (2009, 2011)
TM EN144 (2009)
TM EN125 (2009)
KTM 85 XC (2008)
Piaggio Typhoon (2007)
KTM 85 SX (19/16) (2007)
KTM 85 SX (17/14) (2007)
KTM 105 SX (2007)
Honda NSR50 (2004)
Gas Gas SM 50 (2004)
Aprilia Tuono 50 (2004-2005)
Suzuki RM60 (2003)
KTM 200 SX (2003-2004)
Aprilia RS 50 (2002-2005)
Vespa ET2 (2001)
Gas Gas EC Rookie 50 (2001)
LEM LX4 (1999-2006)
Honda CR125R (1999-2007)
TM MX300 (1998-2003, 2011-2012)
Husqvarna WR125 (1998-2006, 2009-2012)
Husqvarna CR125 (1998-2006, 2009-2010, 2012)
Cobra KING (1998-1999)
Arctic Cat Thundercat MC (1998)
KTM 125 Sting (1997-1998)
Arctic Cat Powder Extreme (1997)
TM 300E (1996-2003)
TM MX80 (1995-2000)
TM MX250 (1995-2003, 2011-2012)
TM MX125 (1995-2003, 2009-2012)
TM 80E (1995-2000)
TM 250E (1995-2003)
TM 125E (1995-2003)
Suzuki RMX250 (1993-1998)
KTM 550 MXC (1993-1994)
KTM 125 EXC (1993)
Yamaha WR200 (1992)
KTM 500 SX (1992)
KTM 300 SX (1992)
KTM 250 SX (1992-1995)
Husqvarna WXC 250 (1992-1993, 1996-1997)
Arctic Cat Lynx Mountain Cat (1992-1993)
Husqvarna WXE 260 (1991)
Husqvarna WME 250 (1991)
KTM 300 MXC (1990, 1993-1994)
KTM 300 EXC (1990-1995)
KTM 300 DXC (1990-1992)
KTM 250 EXC (1990-1995)
Husqvarna WXE 250 (1990-1991, 1994-1997)
Arctic Cat Wildcat Mountain Cat (1990)
Arctic Cat Wildcat 650 (1990)
Arctic Cat Panther Mountain Cat (1990)
Arctic Cat Jag AFS Long Track (1990)
Arctic Cat Jag AFS Deluxe (1990)
KTM 350 EXC (1989-1990)
Arctic Cat Jag AFS (1989-1990)
Arctic Cat Cougar Mountain Cat (1989-1990)
Arctic Cat Cheetah Touring (1988-1991)
Kawasaki KX80 Big Wheel (1987-1991)
Honda TRX250R (1987-1988)
Arctic Cat Super Jag (1987-1990)
Arctic Cat Jag 440 (1987-1988)
Arctic Cat El Tigre 5000 (1977, 1987-1988)
Arctic Cat Jag (1986)
Arctic Cat Cheetah 500 F/C (1986-1988)
Suzuki LT250R QuadRacer (1985-1992)
KTM 500 MXC (1985-1986)
KTM 350 MXC (1985-1988)
Arctic Cat Cougar SE (1985)
Arctic Cat Cougar (1985-1990)
Yamaha IT200 (1984-1985)
KTM 250 MXC (1984-1988)
Kawasaki ZX750E Turbo (1984-1985)
Kawasaki KDX80 (1984)
Kawasaki KDX250 (1984, 1991-1994)
Honda ATC250R (1984-1986)
Kawasaki ZX750 GPZ (1983-1985)
Kawasaki KX60 (1983-2001)
Kawasaki KX500 (1983-1984)
Kawasaki KDX200 (1983-1996)
Honda CR60R (1983-1984)
Yamaha YZ80 (1982-1983)
Yamaha YZ100 (1982)
Suzuki RM80 (1982, 1984-1985)
Suzuki RM465 (1982)
Kawasaki KE125 (1982)
Husqvarna XC125 (1982-1986)
Honda FL250 Odyssey (1982-1984)
Yamaha YZ60 (1981-1983)
Suzuki RS250 (1981)
John Deere Trailfire 440 (1981-1982)
John Deere Sportfire (1981-1982)
John Deere Liquifire 440 (1981-1982)
Arctic Cat Panther West (1981)
Yamaha YZ50 (1980)
Yamaha IT125 (1980-1981)
Yamaha DT175 (1980-1981)
Suzuki PE400 (1980-1981)
Suzuki PE250 (1980)
Kawasaki KX80 (1980-1991)
Kawasaki KX420 (1980-1981)
Kawasaki KDX175 (1980-1982)
Honda CR80R (1980-1985)
Can-Am 400 MX-6 (1980)
Arctic Cat Trail Cat 400 (1980-1981)
Arctic Cat Pantera ES (Electric Start) (1980-1981)
Yamaha IT175 (1979-1983)
Arctic Cat Panther (1979-1981, 1984-1990)
Arctic Cat Pantera (1979-1981, 1985-1990)
Suzuki PE175 (1978)
Honda CR250R (1978-1981, 1987-1988)
Arctic Cat Pantera 5000 F/C (1978)
Arctic Cat Pantera 5000 F/A (1978)
Yamaha IT250 (1977-1983)
Can-Am 175 MX-3 (1977)
Bultaco Pursang 250 (1977-1979)
Arctic Cat Z 250 (1977)
Arctic Cat Panther 4000 (1977-1978)
Yamaha TY175 (1976)
Yamaha SRX440 (1976-1980)
Yamaha EX440 (1976-1981)
Yamaha EX340 (1976-1978)
Suzuki RM370 (1976-1977)
Suzuki RM250 (1976-1981)
Suzuki RM100 (1976-1981)
Suzuki GT250 (1976-1977)
Yamaha MX400 (1975)
Yamaha DT400 (1975-1976)
Suzuki RM125 (1975-1980, 1982-1995)
Kawasaki KX400 (1975-1976)
Yamaha YZ250 (1974-1982, 1984-1987)
Yamaha YZ125 (1974-1976, 1982-2017)
Yamaha MX125 (1974-1976)
Yamaha GPX433 (1974-1975)
Yamaha GPX338 (1974-1975)
Yamaha DT360 (1974)
Kawasaki KX250 (1974-1976, 1978-1982, 1986-1987, 1989-1991)
Kawasaki KX125 (1974-1976, 1978-1982, 1994-2002)
Arctic Cat El Tigre 295 (1974)
Yamaha SR643 (1973, 1975)
Yamaha SR433 (1973, 1978)
Yamaha RT3 (1973)
Yamaha GP292 (1973-1974)
Honda CR250M (1973-1976)
Yamaha RT2 (1972-1973)
Yamaha EW643 (1972-1973)
Yamaha AT2M (1972)
Yamaha SS433 (1971)
Yamaha RT1 (1970-1971)
Yamaha AT1M (1970-1971)
Yamaha SS338 (1969)
Yamaha AT1 (1969-1971)

Headquartered in Wixom, Michigan, NGK® is a global leader in the design and manufacture of spark plugs for virtually every automotive and commercial vehicle application. It has grown immensely since its inception in 1936 with the expansion of its ignition product line and the introduction of its technical sensor and vehicle electronics line. NGK partners with OEMs and uses only the latest cutting tools to ensure each NGK product meets OE specifications for exact fit, form, and function. With world-class quality and engineering, NGK’s expertise goes beyond manufacturing the most reliable spark plugs for the automotive industry but also providing the best customer service possible.

California Proposition 65 Warning

WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. (Read more)