The R & D Marine Flexible Shaft Coupling is designed for optimal performance in marine applications, specifically tailored for 4 B/W and Hurth engines. With a robust capacity of 8HP at 100RPM, this coupling ensures smooth power transmission while minimizing vibration and shock loads. Its flexible design allows for easy installation and alignment, making it an essential component for enhancing the longevity of your marine drivetrain. The model number 910-004 signifies its reliability and quality, making it a trusted choice for boat enthusiasts and professionals alike. Upgrade your marine setup with this efficient coupling!