PISTON KIT 76-79 YZ250 70.00, FORGED WOSSNER 8179DA 2K7-11637-01-00

Piston kit 70mm Bore 69.94 Wossner 8179DA (STD)

YAMAHA
YZ250 1976 - 1979,
IT250 1978 - 1980,
TY250 1974 - 1978,
MC250 1973-1975,
DT250 1974 - 1979,

• 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-W234+000.WO
Wossner Piston Yamaha YZ250 70 mm Bore (PN# 8179DA)
Lock P/N CW18
Pin P/N WP033
Ring Set P/N RSB7000 x 2

Display (cm3) 246
Hub stroke (mm) 64.00
Clearance (mm) 0.06
Wossner compression Ratio: 2 Stroke
OEM Compression ratio: 2 Stroke
Dome volume (cm3)
Compression height (mm) 33.00
Theorectical weight (G)

Cross reference numbers ONLY.
2K7-11637-01-00, 234M07000