RIVA coupler kit for Yamaha 1.8/1.9L (08+)

Coupler kit from RIVA Racing for Yamaha jet ski model 1800cc and 1900cc

Reference: RY30040-BDC

Our billet transmission couplers for Yamaha 1.8L and 1.9L engines are precision machined and balanced to reduce transmission vibration.

Designed to accept the included OEM Kawasaki shock which has proven to be much more reliable for high performance applications.

This coupler/damper configuration has been extensively tested by the RIVA Racing team on highly modified boats in offshore conditions.

It’s a must-have for your performance development!

Main characteristics:

Improved reliability

CNC machined from 6061 aluminum

O-ring sealed crankshaft cap

Anodized to prevent corrosion

Includes OEM Kawasaki shock absorber (part #92161-3711).

Made in the USA