46578019 Ingersoll Rand OEM Drive Coupler

The 46578019 Ingersoll Rand OEM Drive Coupler is a coupling for Ingersoll Rand portable air compressor platforms. This elastomeric coupling connects the diesel engine to the compressor airend, providing torsional vibration isolation and misalignment compensation in IR’s portable compressor drivetrain.

IR portable compressors with this coupling serve construction, utility, and industrial field service applications. The coupling uses a Reich Arcusaflex-style design with a bonded elastomer element that dampens engine firing-pulse vibration before it reaches the airend. This protection is essential for maintaining airend bearing and seal life in machines that operate under constant vibration and varying load conditions.

The 46578019 is a direct OEM replacement. During installation, clean shafts, inspect hubs, and align per IR’s specifications. Verify smooth operation after startup.

Available from Stark Industrial Products with fast shipping for compressor service operations.