Wiseco Stock / Standard 84.50mm bore piston kit. 11:1 Comp. Includes piston, rings, pin, and clips.
ITEM FITS:
2007-2008 Yamaha YFM450 Grizzly 4x4 Auto
2011-2012 Yamaha YFM450 Grizzly 4x4 Auto
2009-2010 Yamaha YFM450 Grizzly 4x4 Auto
2013-2014 Yamaha YFM450 Grizzly 4x4 Auto
2003-2006 Yamaha YFM450F Kodiak Auto 4x4
2018-2021 Yamaha YFM450F Kodiak Auto 4x4
2006-2010 Yamaha YFM450FX Wolverine 4x4
2011-2014 Yamaha YFM450FX Wolverine 4x4
2006-2009 Yamaha YXR450F Rhino 450
(1) 4939M08450