The A21763Y-335-ELEM Cornell OEM Coupling Element is the replaceable rubber insert for the A21763Y-335 drive coupling in Cornell pump systems. This element provides the torsional flexibility between the prime mover and the pump shaft, absorbing vibration that would otherwise reach the pump’s bearings and mechanical seal.
Element-only replacement is cost-effective when hub condition is satisfactory. However, always inspect the hubs carefully before installing a new element – hubs with scoring, corrosion pitting, or bore wear can damage the new element prematurely. If hub damage is found, replacing the complete coupling assembly is the more reliable path.
The A21763Y element is specific to Verify the full part number including Install per Cornell’s standard procedure.
Stark Industrial Products supplies Cornell coupling elements for pump service operations across the country.





















