This is a aftermarket top overhaul kit featuring 2 new 1st oversize pistons, moly coated for low friction, dual rings, pins, circlips , bearings, full major overhaul gasket w/ crank seals kit as shown. This set exceeds the MFGs specs , Designed to replace the oem elkos in all respects.
Smoother running due to better balance, stronger and better heat transfer. These are 40% stronger and feature moly coated skirts to reduce friction and heat.
We run em in our planes and use them in our shop for the past 10+ years
This is set is for 76.25 mm 1st oversize bore 618 rotax. any head color, We carry STD and 2nd oversize bore also. just ask.
International orders may require additional shipping charges.