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Heat-treated for strength and durabilityEqual or surpass original equipment

Heat-treated for strength and durabilityEqual or surpass original equipmentMade in the U.S.A. Harley-Davidson -- Caf Racer XLCR -- (1978, 1977); Harley-Davidson -- Tour Glide FLT -- (1982, 1983, 1981, 1980); Harley-Davidson -- Electra Glide FL -- (1979,...

Heat-treated for strength and durabilityEqual or surpass original equipmentMade in the U.S.A.

Heat-treated for strength and durabilityEqual or surpass original equipmentMade in the U.S.A.

Easy solution to the problem of oil seeping around the motor sprocket shaftRetainer features a high-quality lip sealMade in the U.S.A. Harley-Davidson -- Duo Glide FL -- (1958, 1962, 1964, 1959, 1963, 1961, 1960); Harley-Davidson -- Hydra Glide FL --...

Stock portingSlightly modified port configuration increases horsepowerNo case modifications necessary Yamaha -- Banshee 350 4x2 -- (2004, 2000, 2005, 1999, 2001, 2003, 2002, 1989, 1997, 1992, 1991, 1987, 1993, 1994, 1995, 1996, 1998, 1988, 1990, 2006)

Ready-to-install, direct bolt-on cylinder requires no re-plating and looks virtually identical to the OEM cylindersNickel silicon carbide-plated for long lifeMade in the U.S.A. Polaris -- RZR Trail 900 EPS 4x4 -- (2015, 2016); Polaris -- RZR 900 XC 4x4...

Ready-to-install, direct bolt-on cylinder requires no re-plating and looks virtually identical to the OEM cylindersNickel silicon carbide-plated for long lifeMade in the U.S.A. Polaris -- RZR XP 1000 4x4 -- (2017, 2018, 2015, 2014, 2016); Polaris -- RZR...

Ready-to-install, direct bolt-on cylinder requires no re-plating and looks virtually identical to the OEM cylindersNickel silicon carbide-plated for long lifeMade in the U.S.A. Polaris -- Ranger 800 MVRS -- (2011, 2010); Polaris -- Ranger Crew 800 4x4 --...

Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersCylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noiseNickel silicon carbide-plated for long...

Order one per cylinder Yamaha -- YFM 700 Grizzly AT FI 4x4 -- (2013, 2009, 2010, 2012, 2008, 2011, 2007, 2015, 2014); Yamaha -- YFM 700 Grizzly AT FI Outdoorsman Ed 4x4 -- (2007); Yamaha -- YFM 700 Grizzly AT FI SE 4x4 -- (2007); Yamaha -- YFM 700 FGP...

Order one per cylinder Yamaha -- Big Bear 350 4x4 -- (1988, 1990, 1994, 1996, 1989, 1991, 1992, 1998, 1999, 1987, 1993, 1995, 1997); Yamaha -- YFM 350 Warrior -- (1993, 1991, 1998, 1994, 1995, 1988, 1990, 1992, 1999, 1987, 1989, 1996, 1997, 2001, 2002,...