The 02250234-821 Sullair OEM Drive Coupler is a coupling for Sullair portable air compressors. This coupling provides the flexible engine-to-airend connection in select Sullair portable models, absorbing torsional vibration while transmitting torque from the diesel engine to the compressor airend.
Sullair uses specific coupling part numbers matched to each compressor model’s engine and airend combination. The 02250234-821 is configured for its target models with the correct elastomer specification, hub geometry, and bolt pattern. Cross-referencing this part number against your Sullair compressor’s parts manual before ordering ensures correct fitment.
During replacement, clean both shaft ends, inspect hubs and keyways for dimensional wear, and install per Sullair’s alignment procedure. Verify vibration readings after startup to confirm the new coupling is functioning correctly.
Stark Industrial Products stocks Sullair OEM couplers for compressor service operations nationwide.











