Fit Yamaha Engine 40HP E40MH 40X Piston Ring Kit 66T-11603-00 80mm STD

This standard piston ring kit acts as a reliable aftermarket replacement compatible with OEM PN 66T-11603-00. It suits Yamaha 40HP E40MH and 40X marine outboard engines with an 80mm standard cylinder bore. Precise manufacturing guarantees tight sealing within cylinder bores. Wear-resistant raw materials withstand continuous marine operation and reduce gas leakage. All dimensions comply with OEM standards for simple bolt-on installation. This set recovers sufficient cylinder compression and maintains steady power output for your outboard motor.

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