For Yamaha 40X Outboard Engine Piston Kit 66T-11631-01-93 80mm

This standard piston kit acts as a dependable aftermarket replacement compatible with OEM PN 66T-11631-01-93. It fits Yamaha 40X two-stroke marine outboard engines equipped with an 80mm standard cylinder bore. Precision machining ensures ideal working clearance within cylinders. Wear-resistant alloy withstands continuous marine operation and lowers gas leakage. All dimensions follow OEM specifications for simple mounting. This piston set recovers proper compression and sustains stable 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