Buck Algonquin Shaft Coupling 50-MVP400

4" Buck Algonquin Solid Propeller Shaft Coupling for Volvo Penta Marine Transmissions.

The Buck Algonquin 50-MVP400 Shaft Coupling is a precision-machined marine component designed to provide a secure and reliable connection between the transmission output flange and propeller shaft. Built for inboard propulsion systems, this 4" coupling ensures accurate alignment and consistent torque transfer, helping reduce vibration and maintain smooth drivetrain operation.

Its heavy-duty construction offers long-term durability in demanding marine environments, making it a dependable choice for both replacement and new installations. Constructed from high-strength ductile iron and machined to strict marine tolerances, the 50-MVP400 ensures reliable power transfer, proper shaft alignment, and long service life in demanding inboard applications.

Coupling dimensions

• Flange Diameter: 4"
• Shaft Range: 3/4" Thru 1-1/4"
• Pilot Diameter: 2.366" x 3/32 Female
• Bolt Circle: 3.142"
• Bolt Diameter: 10mm
• Coupling Length: 2-7/32"
• Bolts: 4 (New flange bolts included)