Wossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high-performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service.
Features
- In-house designed and manufactured; all forgings are produced in Wossner's company-owned forging operation
- 4-stroke pistons are made using a double-bridged forging design
- Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine
- All pistons include piston, ring, wrist pin and pin locks
- Wossner pistons are used by leading Supercross, Arenacross and MX GP teams
- Made in Germany
Specifications
- Piston Size: 83.44mm
- Oversize: +0.50mm
- Replacement Rings: 835XSY
- Replacement Wrist Pin: WP026
- Replacement Circlip: CW19
NOTE: Wossner Piston Kits include the Piston, Wrist Pin, Circlips & Rings, Needle Bearings are not included.
1987 Yamaha YFM350FW Big Bear 4X4
1988 Yamaha YFM350FW Big Bear 4X4
1988 Yamaha YFM350X Warrior
1989 Yamaha YFM350FW Big Bear 4X4
1989 Yamaha YFM350X Warrior 2X4
1990 Yamaha YFM350FW Big Bear 4X4
1990 Yamaha YFM350X Warrior 2X4
1991 Yamaha YFM350FW Big Bear 4X4
1991 Yamaha YFM350X Warrior 2X4
1992 Yamaha YFM350FW Big Bear 4X4
1992 Yamaha YFM350X Warrior 2X4
1993 Yamaha YFM350FW Big Bear 4X4
1993 Yamaha YFM350X Warrior 2X4
1994 Yamaha YFM350FW Big Bear 4X4
1994 Yamaha YFM350X Warrior 2X4
1995 Yamaha YFM350FW Big Bear 4X4
1995 Yamaha YFM350X Warrior 2X4
1996 Yamaha YFM350U Big Bear 2X4
1996 Yamaha YFM350X Warrior 2X4
1997 Yamaha YFM350FW Big Bear 4X4
1997 Yamaha YFM350U Big Bear 2X4
1997 Yamaha YFM350X Warrior 2X4
1998 Yamaha YFM350FW Big Bear 4X4
1998 Yamaha YFM350U Big Bear 2X4
1998 Yamaha YFM350X Warrior 2X4
1999 Yamaha YFM350FW Big Bear 4X4
1999 Yamaha YFM350U Big Bear 2X4
1999 Yamaha YFM350X Warrior 2X4
2000 Yamaha YFM350X Warrior 2X4
2001 Yamaha YFM350X Warrior 2X4
2002 Yamaha YFM350X Warrior 2X4
2003 Yamaha YFM350X Warrior 2X4
2004 Yamaha YFM350X Warrior 2X4
2007 Yamaha YFM350FA Grizzly 4X4
2008 Yamaha YFM350FA Grizzly 4X4
2009 Yamaha YFM350FA Grizzly 4X4
2010 Yamaha YFM350FA Grizzly 4X4
2011 Yamaha YFM350FA Grizzly 4X4
2013 Yamaha YFM350FA Grizzly 4X4
2014 Yamaha YFM350FA Grizzly 4X4
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Wossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high-performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service.
Features
- In-house designed and manufactured; all forgings are produced in Wossner's company-owned forging operation
- 4-stroke pistons are made using a double-bridged forging design
- Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine
- All pistons include piston, ring, wrist pin and pin locks
- Wossner pistons are used by leading Supercross, Arenacross and MX GP teams
- Made in Germany
Specifications
- Piston Size: 83.44mm
- Oversize: +0.50mm
- Replacement Rings: 835XSY
- Replacement Wrist Pin: WP026
- Replacement Circlip: CW19
NOTE: Wossner Piston Kits include the Piston, Wrist Pin, Circlips & Rings, Needle Bearings are not included.
1987 Yamaha YFM350FW Big Bear 4X4
1988 Yamaha YFM350FW Big Bear 4X4
1988 Yamaha YFM350X Warrior
1989 Yamaha YFM350FW Big Bear 4X4
1989 Yamaha YFM350X Warrior 2X4
1990 Yamaha YFM350FW Big Bear 4X4
1990 Yamaha YFM350X Warrior 2X4
1991 Yamaha YFM350FW Big Bear 4X4
1991 Yamaha YFM350X Warrior 2X4
1992 Yamaha YFM350FW Big Bear 4X4
1992 Yamaha YFM350X Warrior 2X4
1993 Yamaha YFM350FW Big Bear 4X4
1993 Yamaha YFM350X Warrior 2X4
1994 Yamaha YFM350FW Big Bear 4X4
1994 Yamaha YFM350X Warrior 2X4
1995 Yamaha YFM350FW Big Bear 4X4
1995 Yamaha YFM350X Warrior 2X4
1996 Yamaha YFM350U Big Bear 2X4
1996 Yamaha YFM350X Warrior 2X4
1997 Yamaha YFM350FW Big Bear 4X4
1997 Yamaha YFM350U Big Bear 2X4
1997 Yamaha YFM350X Warrior 2X4
1998 Yamaha YFM350FW Big Bear 4X4
1998 Yamaha YFM350U Big Bear 2X4
1998 Yamaha YFM350X Warrior 2X4
1999 Yamaha YFM350FW Big Bear 4X4
1999 Yamaha YFM350U Big Bear 2X4
1999 Yamaha YFM350X Warrior 2X4
2000 Yamaha YFM350X Warrior 2X4
2001 Yamaha YFM350X Warrior 2X4
2002 Yamaha YFM350X Warrior 2X4
2003 Yamaha YFM350X Warrior 2X4
2004 Yamaha YFM350X Warrior 2X4
2007 Yamaha YFM350FA Grizzly 4X4
2008 Yamaha YFM350FA Grizzly 4X4
2009 Yamaha YFM350FA Grizzly 4X4
2010 Yamaha YFM350FA Grizzly 4X4
2011 Yamaha YFM350FA Grizzly 4X4
2013 Yamaha YFM350FA Grizzly 4X4
2014 Yamaha YFM350FA Grizzly 4X4
