250042-728 Sullair OEM Drive Coupler

The 250042-728 Sullair OEM Drive Coupling is a coupling for Sullair portable air compressors. This coupling provides the flexible engine-to-airend connection in select Sullair models, absorbing torsional vibration while maintaining smooth torque delivery to the compressor airend.

Sullair’s “250042” part family covers coupling components for specific models in their portable compressor range. Sullair portable compressors are widely used in construction, industrial service, and rental fleet operations where the coupling sees continuous duty in demanding field conditions.

The 250042-728 is a direct OEM replacement. During installation, clean all shaft surfaces, inspect hub bores and keyways for wear, and align per Sullair’s published specifications for the applicable compressor model. Verify vibration levels and air delivery performance after startup.

Stark Industrial Products stocks Sullair OEM couplings for fast delivery to compressor service operations.