Piston Ring Kit for Yamaha T40 40HP 66T-11631-01-93 80MM

This standard piston ring kit works as a dependable aftermarket spare part matching OEM PN 66T-11631-01-93. It fits Yamaha T40 40HP marine outboard engines with an 80mm cylinder bore. Precise manufacturing ensures effective gas sealing within cylinder bores. Durable raw materials withstand repeated marine operation and minimize compression leakage. All dimensions follow OEM standards for simple direct fitting. This assembly recovers adequate cylinder compression and maintains stable power output for your outboard engine.

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