O.S. Cylinder/Piston Assembly 21XZ-B Spec 2Tower Stock# OSMG4841 • Manufacturer Stock# 22423100
Notes from our tech department:
Speed Tuned 21XZ-B Speed Spec II ABC, OSMG2052.
Replaces worn piston and cylinder liner
Cylinder and Piston for the Speed Tuned 21XZ-B Speed Spec II ABC
Heating crankcase to remove original cylinder