R & D Flexible Shaft Coupling f/5" B/W, Hurth, & Volvo - 25HP/100RPM Capacity Shaft Couplers making installation quick and hassle-free

making installation quick and hassle-free

XPS Hose Kit - 12'

Replaces most Volvo Penta alternators using a 4” J180 saddle-style mount

Premium Construction

R & D Flexible Shaft Coupling f/5" B/W, Hurth, & Volvo - 25HP/100RPM Capacity Shaft Couplers making installation quick and hassle-freeFlexible Shaft Coupling for 5" B W, Hurth, & Volvo 25HP 100RPM Capacity The R & D Marine Flexible Coupling consists of a flexible disc molded with a polyester elastomer. The disc gives clearance for bolt heads and is able to flex freely to take up any temporary misalignment of the engine and shaft due to flexing of the boat structure or the engine moving on its mount. Forward thrust is taken in compression on the disc between the two half couplings,