The 92790633 Ingersoll Rand Coupler is a genuine OEM replacement component for the drive system on Ingersoll Rand small-frame portable air compressors. The coupler connects the diesel engine output shaft to the airend input shaft, transmitting torque while absorbing torsional vibration, dampening shock loads, and compensating for minor angular and axial misalignment between the two rotating components.
Confirmed fitment includes the Ingersoll Rand 7/26, 7/26E, 7/31, 7/31E, 7/41, and P90 towable diesel portable air compressors. The 7-series and P90 platform shares a common drive coupling architecture across model years, and 92790633 is the factory drive coupling component listed in Ingersoll Rand parts catalogs for these machines.
Servicing the drive coupler at recommended intervals prevents progressive damage to engine and airend bearings caused by element fatigue. Inspect the coupler during routine compressor maintenance and replace at the first sign of cracking, hardening, or loss of torsional response. Built to Ingersoll Rand OEM specifications.

















