80MM Ref. Part No 66T-11631-01-93 for Yamaha 40HP Outboard Engine

This standard piston kit acts as a dependable aftermarket spare part corresponding to OEM PN 66T-11631-01-93. It fits Yamaha 40HP two-stroke marine outboard engines equipped with an 80mm standard cylinder bore. Precision machining delivers suitable working clearance inside cylinders. Wear-resistant alloy construction withstands continuous marine operation and minimizes gas blow-by. All dimensions comply with OEM standards for simple installation. This piston assembly recovers adequate compression and sustains steady power output 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