The 02250046-555 Sullair OEM Drive Coupler is a coupling for Sullair portable rotary screw air compressors. This elastomeric coupling connects the diesel engine to the compressor airend in Sullair 600H, 750, 750H, 750HH, 825, 900, 900H, and 1050 T3 CAT portable compressors, providing torsional vibration isolation and smooth torque transfer.
Sullair portable compressors equipped with this coupling are found in construction, pipeline, and industrial field service. The coupler absorbs the constant torsional load from the diesel engine while compensating for minor shaft misalignment. Sullair machines running in rental fleets and contractor service see hard use – frequent starts, variable loads, transportation between jobsites – all of which contribute to gradual coupling wear.
The 02250046-555 is a direct factory replacement. During installation, clean both shaft surfaces, inspect hubs and keyways for wear, and align per Sullair’s service procedure. Run the compressor through a full warm-up and load cycle to verify smooth operation before returning to service.
Stark Industrial Products stocks Sullair OEM couplers with same-day shipping on in-stock parts.















