Piston , Details: fit with GY6 50cc Motor (4-stroke) http://www.scooterpartshouse.com, We are Chinese manufacturer of hydraulic breakers/ hammers and part of hydraulic breaker spare parts. Our parts incude chisel(rod, moil point),rod pin,ring bush,thrust bush,seal kit,through bolt,side bolt, front head, back head, piston,diaphragm,accumulat, Description T508 is a phenolic ester compound, which acts as an excellent antioxidant. It can reduce deposit formation in the upper part of heavy duty diesel engine piston, particulary in the 1st and 2nd groove. Spe