O.S. Crankshaft 21XZ-B SpeedTower Stock# OSMG4522 • Manufacturer Stock# 22422000
The crankshaft fits into the crankcase and the clutch nut,
flywheel, bearings and con rod mount to this shaft.
DLC coated crankshaft with silicone filled intake passage for
One Crankshaft for the O.S. Max .21 XZ-B Speed Engine
Length: 76mm (2.99")
Diassembling engine to install Crankshaft