Replacement crank shaft assembly for the UMS 5-180cc, the five-cylinder 180cc four-stroke radial from UMS.
Function: it is the complete crankshaft assembly — the shaft with its bearings and drive features already fitted.
The reason this ends up on an order: buying the assembly rather than individual pieces is the practical route when the shaft itself is the failed part, since the bearing surfaces are matched to it.
Fitting note: Keep the assembly supported on its bearings during fitting and never press on the crankpin.
Reviews
There are no reviews yet.