A21763H-335 Cornell Pump OEM Drive Coupler

The A21763H-335 Cornell Pump OEM Drive Coupler is an original equipment coupling for Cornell Pump Company pump systems. This drive coupler transmits motor or engine torque to the pump shaft while isolating torsional vibration from the pump bearings and seal assembly.

Cornell pumps are engineered for high-efficiency fluid transfer across industries from irrigated agriculture to industrial slurry handling. The drive coupler handles both steady-state torque and the transient loads caused by flow variations, priming cycles, and solids passage through the impeller. Over time, the coupling element degrades from continuous flexing and heat, gradually reducing its vibration isolation capability. Replacement during scheduled pump maintenance prevents the secondary damage that a failed coupler causes to seals and bearings.

The A21763H-335 installs in the original Cornell mounting position. Inspect all shaft surfaces, verify alignment between the pump and driver, and confirm proper coupling engagement before returning to service.

Available from Stark Industrial Products with same-day shipping.