The 58546425 Ingersoll Rand OEM Drive Coupler Element is a coupling element for select Ingersoll Rand portable compressor and equipment platforms. This is the replaceable elastomeric element of a Reich Arcusaflex ACH-series coupling, providing the torsional damping and vibration isolation in the drivetrain.
The ACH-series Arcusaflex is a heavy-duty coupling platform used in Ingersoll Rand equipment where higher torque capacity is required. The element is the wear component in the coupling assembly – it absorbs engine vibration, accommodates minor shaft misalignment, and eventually degrades from heat, torsional fatigue, and environmental exposure. Replacing the element at regular intervals protects the more expensive hubs and drivetrain components from vibration damage.
The 58546425 is the IR-numbered equivalent for this element. During replacement, inspect hub surfaces for wear before installing the new element. Follow the coupler manufacturer’s installation procedure and verify alignment before returning the machine to service.
Available from Stark Industrial Products with priority shipping for equipment service operations.



















