80MM Circlip 663-11634-00 Piston Ring for Yamaha T40 40HP Piston STD Set

This piston circlip with part number 663-11634-00 is a practical aftermarket component for Yamaha T40 40HP two-stroke outboards equipped with an 80mm STD piston set. It securely locks the piston wrist pin to avoid unexpected sliding. High strength steel withstands vibration and corrosion from long marine use. Dimensions follow OEM standards for easy assembly. This small vital part safeguards piston structure and supports stable engine performance on water.

This is a brand new piston set (STD size) For Yamaha Outboard Motor ,And also for Parsun,Hidea,Seapro,Hangkai,HDX etc 2 strok 40HP ,E40X series.

Ref. Part No: 66T-11631-00

Piston Diameter: 80mm / 3.149in

Wrist Pin: 20mm / 0.787in

It used on:

for Yamaha 40HP E40MH 40X outboard engine

E40MLHW-REV - 1998 E40MLHX - 1999 E40MLHY - 2000 E40MLHZ - 2001---up

Parsun 40HP E40MH 40X boat motor