- Superior construction for serious power
- Versatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot
- Features high alumina ceramics for improved heat dissipation and electrical insulation, deep-seated copper core for a wider heat range and a nickel alloy tip for longer life
BSA -- B44 Victor -- (1967, 1966); BSA -- B50 Victor -- (1967, 1966); Husqvarna -- CR 430 -- (1993, 1988, 1992, 1994, 1987, 1995, 1980, 1982, 1983, 1981, 1986, 1996); Husqvarna -- CR 500 -- (1987, 1995, 1997, 2009, 2010, 1989, 1993, 1994, 2013, 2014, 1982, 1985, 1990, 1996, 2002, 1983, 1986, 2011, 1984, 1999, 2003, 1998, 2008, 1988, 1991, 1992, 2000, 2001, 2012); Husqvarna -- WR 240 Enduro -- (1984, 1991, 1985, 1986, 1982, 1989, 1981, 1983, 1990, 1987, 1988); Husqvarna -- WR 250 -- (2004, 2001, 2002, 2008, 1999, 2007, 2010, 2003, 2000, 2006, 2009, 2012, 2005, 2011); Husqvarna -- CR 390 -- (1977, 1993, 1995, 1980, 1994, 1996, 1978, 1992, 1979); Husqvarna -- WR 360 -- (2001, 1998, 2000, 1999); Husqvarna -- WXC 360 -- (1998); Husqvarna -- WR 400 -- (1982, 1984, 1986, 1995, 2008, 2009, 1991, 1997, 2001, 2012, 1988, 1999, 2005, 2007, 2010, 2015, 1987, 1998, 2002, 2011, 1994, 1996, 2004, 1985, 1990, 1993, 2006, 2014, 1992, 2000, 2003, 2013); Husqvarna -- WR 430 -- (1981, 1983, 1995, 1980, 1992, 1982, 1996, 1986, 1987, 1988, 1994, 1993); Husqvarna -- 500 WR -- (1984, 1983); Gas Gas -- EC 250 -- (1997); Honda -- CR480R -- (1983); Kawasaki -- KX 80 -- (1979, 1980); Yamaha -- IT 250 -- (1981); Yamaha -- YZ 250 -- (1985, 1992, 1989, 1991, 1995, 1986, 1987, 1993, 1990, 1984, 1988, 1994); Yamaha -- WR 250 Z -- (1993)