PISTON KIT 01-04 YFM660 100.50 WOSSNER 8507D050 YAMAHA ATV

Piston Kit 100.50mm Bore 100.43mm Wossner 8507D050

YAMAHA
XTZ660 Tenere 1991 – 1998,
XTZ660 Raptor 1991 – 1998,

ATV
YAMAHA
YFM660R Raptor 2001 – 2009,
YFM660F Grizzly 2001 – 2009,

• Wossner forged pistons are superior in strength and design.
• Engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls.
• Elliptically designed to provide a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse.
• Made in Germany.

Part No. 56-W8507+050.WO (oro2u.com)
Wossner Piston Yamaha XTZ660 Tenere/Raptor 100.50 mm Bore (PN# 8168D050)
Lock P/N CW22
Pin P/N WP017-SP
Rings 1005XSY