250041-801 Sullair OEM Drive Coupler Kit

The 250041-801 Sullair OEM Drive Coupler Kit is the factory-specified coupling assembly for Sullair 185 portable rotary screw air compressors. This kit includes the complete coupling components needed to restore the motor-to-airend connection on Sullair 185 units used across construction, sandblasting, pipeline, and general jobsite applications.

Sullair 185 compressors are one of the most widely deployed towable units in the rental and contractor market. The drive coupler in these machines absorbs constant torsional load from the diesel engine while compensating for minor shaft misalignment between the engine and airend. When the elastomeric element wears, operators notice increased vibration, audible drivetrain noise, or difficulty maintaining stable air pressure under load.

This coupler kit is a direct drop-in for the Sullair 185 platform. It matches the original hub geometry, elastomer durometer, and bolt pattern, so no modifications are needed during installation. Clean and inspect both shafts, verify keyway condition, and torque all hardware to spec before returning the unit to service. Confirm vibration baseline after startup.

Stark Industrial Products stocks this kit for same-day shipping to service shops, rental yards, and field maintenance crews nationwide.