Top End

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 to OEM specificationsAll individual components will...

Two-stroke pistons are made from 4032 siliciumFour-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistonsBoth include 3% copper in materials for better heat resistanceAll pistons are forged using a precision...

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 400 -- (2001, 2002, 2010, 2012, 2011, 2005, 2009, 2006,...

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, 2006, 2008); Yamaha -- YFM 400 Kodiak -- (1998, 1997,...

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, 2001, 2008); Yamaha -- YFM 400 Kodiak -- (1998, 1997,...

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, 1993, 1995, 1998, 1996); Yamaha -- Big Bear 400...

Heat-treated for strength and durabilityEqual or surpass original equipment

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 to OEM specificationsAll individual components will...

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 to OEM specificationsAll individual components will...

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 to OEM specificationsAll individual components will...

Replacement Piston Rings Yamaha -- YFM 700 Grizzly AT FI 4x4 -- (2010, 2012, 2008, 2011, 2013, 2014, 2009, 2007, 2015); Yamaha -- YFM 700 Grizzly AT FI Outdoorsman Ed 4x4 -- (2007); Yamaha -- YFM 700 Grizzly AT FI SE 4x4 -- (2007); Yamaha -- YFM 700...