PISTON KIT ROTAX SWM250 74.00 WOSSNER 8290DA

Piston kit 74mm BORE 73.93 Wossner 8290DA (STD)

ROTAX
SWM250 1979 - 1982

• 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-W970.A.WO (ORO2U.COM)
ROTAX SWM250,
WOSSNER PISTON KIT ROTAX SWM250 73.93mm
CLIP P/N CW18
PIN P/N WP033
RING P/N RSB7400 x 2
(WOSSNER PN# 8290DA)

Display (cm3) 247
Hub stroke (mm) 57.50
Clearance (mm) 0.06
Wossner compression Ratio: 2 stroke
OEM Compression ratio: 2 stroke
Dome volume (cm3) -
Compression height (mm) 34.00
Theorectical weight (G)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.