The 02250139-986 Sullair OEM Drive Coupler is an OEM Bowex-style coupling for Sullair portable air compressors. This is a Bowex 48-series jaw coupling specified for Sullair’s larger portable compressor platforms where the jaw coupling design handles the higher torque loads of mid-range to large portable units.
The Bowex 48-series coupling is larger than the standard jaw couplers found in compact Sullair portables. It serves models in the 300+ CFM class where the diesel engine output requires a heavier-duty coupling. The elastomeric spider transmits torque between the jaw profiles while absorbing the torsional forces that would otherwise fatigue airend bearings and seals.
The 02250139-986 is a direct factory replacement. Inspect jaw profiles and replace the spider during service. Align per Sullair’s procedure.
Stark Industrial Products stocks Sullair Bowex-style couplers for larger portable compressor service.









