NGKs wide heat range results from using copper wire in place of the iron cores found in many conventional plugs
Copper dissipates heat quicker, cooling the electrode and insulator tip
Raised pre-ignition rating with high conduction copper and long nose insulator
Each meets the requirements of high-performance engines
Sold each
Specs for NGK Spark Plug - BP4HS
Heat Range
4
Thread
14 mm
Type
Non-Resistor
Units
Each
Weight
0.12 lbs
Alternate/OEM Part Number(s):
3611, BP4HS
Honda
1981 Honda NA50 Express II
1980 Honda NA50 Express II
1979 Honda NA50 Express II
Suzuki
1971 Suzuki F50 Cutlass
1970 Suzuki F50 Cutlass
1991 Suzuki FA50 Shuttle
1990 Suzuki FA50 Shuttle
1989 Suzuki FA50 Shuttle
1988 Suzuki FA50 Shuttle
1987 Suzuki FA50 Shuttle
1986 Suzuki FA50 Shuttle
1985 Suzuki FA50 Shuttle
1984 Suzuki FA50 Shuttle
1983 Suzuki FA50 Shuttle
1982 Suzuki FA50 Shuttle
1981 Suzuki FA50 Shuttle
1980 Suzuki FA50 Shuttle
1993 Suzuki JR50
1992 Suzuki JR50
1991 Suzuki JR50
1990 Suzuki JR50
1989 Suzuki JR50
1988 Suzuki JR50
1987 Suzuki JR50
1986 Suzuki JR50
1985 Suzuki JR50
1982 Suzuki JR50
1981 Suzuki JR50
1980 Suzuki JR50
1979 Suzuki JR50
1978 Suzuki JR50
1983 Suzuki JR50R
1973 Suzuki MT50 Trailhopper
1972 Suzuki MT50 Trailhopper
1971 Suzuki MT50 Trailhopper
Yamaha
1981 Yamaha LC50 Champ
1980 Yamaha LC50 Champ
1982 Yamaha MJ50 Towny
2018 Yamaha PW50
2017 Yamaha PW50
2016 Yamaha PW50
2015 Yamaha PW50
2014 Yamaha PW50
2013 Yamaha PW50
2012 Yamaha PW50
2009 Yamaha PW50
2008 Yamaha PW50
2007 Yamaha PW50
2006 Yamaha PW50
2005 Yamaha PW50
2004 Yamaha PW50
2003 Yamaha PW50
2002 Yamaha PW50
2001 Yamaha PW50
2000 Yamaha PW50
1999 Yamaha PW50
1998 Yamaha PW50
1997 Yamaha PW50
1996 Yamaha PW50
1995 Yamaha PW50
1994 Yamaha PW50
1993 Yamaha PW50
1992 Yamaha PW50
1991 Yamaha PW50
1990 Yamaha PW50
1988 Yamaha PW50
1987 Yamaha PW50
1986 Yamaha PW50
1985 Yamaha PW50
1983 Yamaha PW50
1982 Yamaha PW50
1981 Yamaha PW50
1988 Yamaha QT50 Yamahopper
1987 Yamaha QT50 Yamahopper
1986 Yamaha QT50 Yamahopper
1985 Yamaha QT50 Yamahopper
1984 Yamaha QT50 Yamahopper
1983 Yamaha QT50 Yamahopper
1982 Yamaha QT50 Yamahopper
1981 Yamaha QT50 Yamahopper
1980 Yamaha QT50 Yamahopper
1979 Yamaha QT50 Yamahopper
Part No. 37-BP4HS (oro2u.com) Traditional Spark Plug, 14mm Thread Size, 12.7mm (1/2") Reach, 13/16" (20.6mm) Hex Size, Gasket Seat, Non-Resistor, Removable Terminal Nut, JIS Height, Extended Projected Tip, .028" (0.7mm) Gap, Heat Range 4 NGK traditional plugs are constructed for longer life and optimum performance. Corrugated ribs prevent flashover. NGK
uses only the purest alumina silicate in its ceramic insulator which give all NGK plugs greater strength and better heat transfer. Copper cored and triple sealed to further aid in heat removal and prevent interior leakage.
NGK Spark Plug - BP4HS
NGKs wide heat range results from using copper wire in place of the iron cores found in many conventional plugs
Copper dissipates heat quicker, cooling the electrode and insulator tip
Raised pre-ignition rating with high conduction copper and long nose insulator
Each meets the requirements of high-performance engines
Sold each
Specs for NGK Spark Plug - BP4HS
Heat Range
4
Thread
14 mm
Type
Non-Resistor
Units
Each
Weight
0.12 lbs
Alternate/OEM Part Number(s):
3611, BP4HS
Honda
1981 Honda NA50 Express II
1980 Honda NA50 Express II
1979 Honda NA50 Express II
Suzuki
1971 Suzuki F50 Cutlass
1970 Suzuki F50 Cutlass
1991 Suzuki FA50 Shuttle
1990 Suzuki FA50 Shuttle
1989 Suzuki FA50 Shuttle
1988 Suzuki FA50 Shuttle
1987 Suzuki FA50 Shuttle
1986 Suzuki FA50 Shuttle
1985 Suzuki FA50 Shuttle
1984 Suzuki FA50 Shuttle
1983 Suzuki FA50 Shuttle
1982 Suzuki FA50 Shuttle
1981 Suzuki FA50 Shuttle
1980 Suzuki FA50 Shuttle
1993 Suzuki JR50
1992 Suzuki JR50
1991 Suzuki JR50
1990 Suzuki JR50
1989 Suzuki JR50
1988 Suzuki JR50
1987 Suzuki JR50
1986 Suzuki JR50
1985 Suzuki JR50
1982 Suzuki JR50
1981 Suzuki JR50
1980 Suzuki JR50
1979 Suzuki JR50
1978 Suzuki JR50
1983 Suzuki JR50R
1973 Suzuki MT50 Trailhopper
1972 Suzuki MT50 Trailhopper
1971 Suzuki MT50 Trailhopper
Yamaha
1981 Yamaha LC50 Champ
1980 Yamaha LC50 Champ
1982 Yamaha MJ50 Towny
2018 Yamaha PW50
2017 Yamaha PW50
2016 Yamaha PW50
2015 Yamaha PW50
2014 Yamaha PW50
2013 Yamaha PW50
2012 Yamaha PW50
2009 Yamaha PW50
2008 Yamaha PW50
2007 Yamaha PW50
2006 Yamaha PW50
2005 Yamaha PW50
2004 Yamaha PW50
2003 Yamaha PW50
2002 Yamaha PW50
2001 Yamaha PW50
2000 Yamaha PW50
1999 Yamaha PW50
1998 Yamaha PW50
1997 Yamaha PW50
1996 Yamaha PW50
1995 Yamaha PW50
1994 Yamaha PW50
1993 Yamaha PW50
1992 Yamaha PW50
1991 Yamaha PW50
1990 Yamaha PW50
1988 Yamaha PW50
1987 Yamaha PW50
1986 Yamaha PW50
1985 Yamaha PW50
1983 Yamaha PW50
1982 Yamaha PW50
1981 Yamaha PW50
1988 Yamaha QT50 Yamahopper
1987 Yamaha QT50 Yamahopper
1986 Yamaha QT50 Yamahopper
1985 Yamaha QT50 Yamahopper
1984 Yamaha QT50 Yamahopper
1983 Yamaha QT50 Yamahopper
1982 Yamaha QT50 Yamahopper
1981 Yamaha QT50 Yamahopper
1980 Yamaha QT50 Yamahopper
1979 Yamaha QT50 Yamahopper
Part No. 37-BP4HS (oro2u.com) Traditional Spark Plug, 14mm Thread Size, 12.7mm (1/2") Reach, 13/16" (20.6mm) Hex Size, Gasket Seat, Non-Resistor, Removable Terminal Nut, JIS Height, Extended Projected Tip, .028" (0.7mm) Gap, Heat Range 4 NGK traditional plugs are constructed for longer life and optimum performance. Corrugated ribs prevent flashover. NGK
uses only the purest alumina silicate in its ceramic insulator which give all NGK plugs greater strength and better heat transfer. Copper cored and triple sealed to further aid in heat removal and prevent interior leakage.