Our Billet Driveline Couplers for Yamaha 1.8L & 1.9L engines are precision-machined and balanced to reduce driveline vibration. Designed to accept included OEM Kawasaki dampener which has proven much more reliable for high-performance applications. This coupler/dampener setup was tested extensively by the RIVA Racing Team on highly modified craft in offshore conditions. It’s a must for your performance build!

Key Features:

• Improved reliability
•  CNC machined from 6061 billet aluminum
• O-ring sealed crankshaft cap
• Anodized to prevent corrosion
• Includes OEM Kawasaki Dampener (part# 92161-3711)
• Made in USA