36773521 Ingersoll Rand OEM Drive Coupler

The 36773521 Ingersoll Rand OEM Drive Coupler is a coupling specified for select Ingersoll Rand portable compressor platforms. This Lord Dynaflex-style elastomeric coupling provides the flexible connection between the engine output and compressor airend, isolating torsional vibration while transmitting torque smoothly under varying load conditions.

In IR portable compressors, the drive coupler operates in a demanding environment – exposed to heat cycling, constant vibration, and the repetitive shock of engine firing pulses. Over time, the elastomeric element hardens, cracks, or deforms, reducing its ability to dampen vibration. Left unaddressed, a deteriorating coupler can accelerate bearing wear in both the engine and airend, leading to more expensive repairs.

The 36773521 is an OEM part that drops directly into the factory mounting position with no modifications. During replacement, inspect both hubs for scoring or wear, clean all mating surfaces, and verify shaft alignment before final assembly. Confirm smooth operation and acceptable vibration levels after startup.

In stock and shipping daily from Stark Industrial Products.