Piston kit 99mm Bore 98.93mm Wossner 8501D400 (+4.00)
YAMAHA
XT600 1984 - 2004,
XT600E 1984 - 2004,
TT600 1984 - 2004,
TT600R 1984 - 2004,
ATV
YFM600 Grizzly 1998 - 2001, 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 56-W4797+400.WO
Wossner 99.00mm piston kit (Wossner part no 8501D400)
Lock P/N CW22
Pin P/N WP009
Ring Set P/N 980XSY Display (cm3) 595
Hub stroke (mm) 84.00
Clearance (mm) 0.07
Wossner compression Ratio: 10.70:1
OEM Compression ratio: 8.50:1
Dome volume (cm3) -0.50
Compression height (mm) 28.00
Theorectical weight (G)