Save time and money rebuilding the top end of your motorcycle with a Wossner Piston kit & top end gasket set.

The top end gasket set included in this kit may vary and depend on supplier stock at time of purchase; if stock unavailable at time of purchase, a similar quality branded product will be included instead.

About Wossner Piston Kits

• All Wossner pistons are forged in-house from aluminum
• Forging gives the alloy a better grain flow, which in turns creates more tensile strength, or the ability to bend without breaking.
• All pistons are machined on state-of-the-art CNC machine equipment, then hand finished and inspected for quality.
• The forged pistons come complete with gudgeon pin, clips, and high-performance rings.

Bike Fitment:

• fits Yamaha YZ85L Big Wheel 2002
• fits Yamaha YZ85L Big Wheel 2003
• fits Yamaha YZ85L Big Wheel 2004
• fits Yamaha YZ85L Big Wheel 2005
• fits Yamaha YZ85L Big Wheel 2006
• fits Yamaha YZ85L Big Wheel 2007
• fits Yamaha YZ85L Big Wheel 2008
• fits Yamaha YZ85L Big Wheel 2009
• fits Yamaha YZ85L Big Wheel 2010
• fits Yamaha YZ85L Big Wheel 2011
• fits Yamaha YZ85L Big Wheel 2012
• fits Yamaha YZ85L Big Wheel 2013
• fits Yamaha YZ85L Big Wheel 2014
• fits Yamaha YZ85L Big Wheel 2015
• fits Yamaha YZ85L Big Wheel 2016