250031-457 Sullair OEM Drive Coupler

The 250031-457 Sullair OEM Drive Coupler is a coupling for Sullair portable rotary screw air compressors.

Sullair portable compressors are staples in construction and industrial service, known for durability and reliable air delivery. The drive coupler absorbs the torsional vibration from the diesel engine, protecting the airend and extending the service life of bearings and seals. Sullair’s 185 and similar class compressors are among the most widely deployed towable units in the rental market, and proper coupler maintenance is essential for maximizing uptime.

The 250031-457 is a direct factory replacement. During installation, clean all shaft surfaces, inspect hubs and keyways, and follow Sullair’s alignment procedure. Verify normal vibration levels and smooth operation after startup.

Stark Industrial Products stocks Sullair OEM couplers with same-day shipping for compressor service teams.