Buck Algonquin Shaft Coupling 50-400B

4" Buck Algonquin Split Propeller Shaft Coupling for Borg Warner and Hurth Marine Transmissions.

The Buck Algonquin 50-400B Split Propeller Shaft Coupling is a heavy-duty, precision-machined coupling designed for use with Borg Warner, Hurth, and ZF marine transmissions. Engineered for accurate alignment and secure shaft retention, this coupling ensures efficient power transfer from the transmission to the propeller shaft in demanding inboard applications.

Constructed from high-strength ductile iron, the 50-400B is built to handle demanding marine environments while maintaining proper shaft alignment and efficient power transfer. The split coupling design allows for easier installation and removal without requiring shaft withdrawal, significantly reducing maintenance time and simplifying service procedures.

Coupling dimensions

• Flange Diameter: 4"
• Bore Range: 7/8" Thru 1-1/2"
• Pilot Diameter: 2-1/2 x 3/32 Male
• Bolt Circle: 3-1/4"
• Bolt Diameter: 3/8"
• Coupling Length: 3-7/16"
• # of Bolts: 4 (New flange bolts included)