Buck Algonquin Shaft Coupling 50-MCY005

4-3/4" Buck Algonquin Solid Propeller Shaft Coupling for Yanmar Marine Transmissions.

The Buck Algonquin 50-MCY005 Solid Shaft Coupling is engineered specifically for Yanmar marine transmissions, providing a rigid and accurate connection between the transmission output flange and propeller shaft. With a 5" flange diameter, this coupling is ideal for inboard propulsion systems where strength, alignment, and reliability are critical.

Its solid one-piece construction ensures maximum holding power and minimal flex, making it well-suited for permanent installations and demanding marine environments. Precision machining helps reduce vibration and maintain smooth drivetrain performance under load.

Constructed from high-strength ductile iron and machined to strict marine tolerances, the 50-MCY005 ensures reliable power transfer, proper shaft alignment, and long service life in demanding inboard applications.

Coupling dimensions

• Flange Diameter: 4 3/4"
• Shaft Range: 1" Thru 1-1/2"
• Pilot Diameter: 2.556" x 1/8" Male
• Bolt Circle: 3.937"
• Bolt Diameter: 10mm
• Coupling Length: 2-3/8"
• Bolts: 4 (New flange bolts included)