crankshaft oil seal kit Polini FKM/PTFE 20mm for Vespa PK 50, 125, XL 50, 125, 125 Primavera 2T, ETS 125

A set of quality Polini PTFE / FKM crankshaft seals for 50-125cc Vespa Classic geared scooter engines with 20mm crankshaft taper on the flywheel side. 20x32x7mm 22,7x47,05x7 / 7.5mm

Explanation: The difference between FPM, FKM, Viton®
Behind the abbreviations or names mentioned is the identical basic material - fluororubber. FKM is the abbreviation for fluoroelastomers according to the American ASTM standard. Viton®, on the other hand, is a trademark of the company DuPont Performance Elastomers.

In our range, all fluoro rubber articles are designated with the abbreviation FKM.