Top End

Quality and construction that meets or exceeds OEMFeature improved E-clip designContain piston, rings, pin and clipsAdditional rings available separatelyOrder one per cylinderSkirts have a...

New light weight design incorporates shorter piston skirts with an PTFE coating at critical wear points for quicker revs and less heatImproved intake skirt with larger inlet ports for increased...

New light weight design incorporates shorter piston skirts with an PTFE coating at critical wear points for quicker revs and less heatImproved intake skirt with larger inlet ports for increased...

Features a cast or moly top ringReverse torsional taper face second ring and easy "spiral on" three-piece oil rings

Heat-treated for strength and durabilityEqual or surpass original equipment

Wsm Piston Kit - 84.00 Mm - Yamaha 50-541-07K Yamaha -- Big Bear 400 Exploring Edition IRS 4x4 -- (2007); Yamaha -- YFM 400 Kodiak -- (1993, 1998, 1997, 1999, 1996, 1995, 1994); Yamaha -- Big Bear...

Wsm Piston Kit - 83.75 Mm - Yamaha 50-541-06K Yamaha -- Big Bear 400 Exploring Edition IRS 4x4 -- (2007); Yamaha -- Big Bear 400 -- (2010, 2012, 2004, 2003, 2011, 2000, 2007, 2005, 2009, 2001, 2002,...

Wsm Piston Kit - 83.25 Mm - Yamaha 50-541-04K Yamaha -- Big Bear 400 Exploring Edition IRS 4x4 -- (2007); Yamaha -- Big Bear 400 -- (2010, 2012, 2003, 2004, 2011, 2000, 2007, 2005, 2009, 2006, 2002,...

Wsm Piston Kit - 83.50 Mm - Yamaha 50-541-05K Yamaha -- Big Bear 400 -- (2003, 2004, 2010, 2012, 2005, 2009, 2006, 2008, 2000, 2007, 2011, 2002, 2001); Yamaha -- YFM 400 Kodiak -- (1994, 1999, 1997,...

High performance, long life, die-cast pistonsEngineered to provide the best possible path for combustion chamber heat transfer to cylinder wallsAll pistons, rings, pins and circlips are manufactured...

High performance, long life, die-cast pistonsEngineered to provide the best possible path for combustion chamber heat transfer to cylinder wallsAll pistons, rings, pins and circlips are manufactured...

Replacement piston rings for 106" applications