1615-6825-00 Atlas Copco OEM Drive Coupler

The 1615-6825-00 Atlas Copco Drive Coupler is an OEM rubber disc drive coupling used as the engine-to-airend connection on the Atlas Copco XA(T,H,V)S 146-186 portable diesel compressor lineup. This coupler transmits full operational torque from the diesel engine flywheel to the rotary screw airend input shaft through a flexible rubber disc element while absorbing the cyclical firing-pulse vibration produced by the diesel engine.

Atlas Copco compressor model applications for the 1615-6825-00 include the XAS 186, XATS 156, XAHS 146, XAHS 186, XAVS 136, and XAVS 166 portable diesel platforms — the COM2 and COM3 emissions-tier production runs of Atlas Copco’s heavy-duty portable compressor lineup. These platforms deliver between 220 and 392 CFM across pressure ranges from 102 to 204 PSIG and are deployed in sandblasting operations, quarry rock drilling, fiber optic cable installation, pipeline service, mining support, and other demanding portable air applications where compressor reliability drives revenue.

The rubber disc coupling design transmits torque through a flexible rubber element bolted between two coupling hubs, providing positive engagement with controlled torsional flexibility. The disc compensates for the angular and parallel shaft misalignment that develops during normal operation, thermal expansion, and machine settling on uneven jobsite ground. This vibration isolation protects the airend bearings, shaft seals, and downstream drivetrain components from accelerated wear caused by uncontrolled torsional spikes passing through the drivetrain.

When to replace the 1615-6825-00: Symptoms of coupler failure include elevated vibration during loaded operation, audible knocking or rumbling from the bell housing area at startup or under load, visible cracking, hardening, or deformation of the rubber disc element, elongation or wear around the bolt attachment points, and metallic debris around the coupling guard. A failed coupler that goes unreplaced will quickly cascade into airend bearing damage that runs far more expensive than the coupling itself. Atlas Copco specifies inspection of the coupler at every scheduled compressor service interval.

The 1615-6825-00 is a direct OEM replacement requiring no modification to the engine, airend, or mounting hardware. Install per the Atlas Copco service manual with verification of shaft alignment, bolt pattern fit, and proper torque specification on the mounting hardware before returning the compressor to service.

Direct OEM Atlas Copco replacement — not an aftermarket equivalent. Available from Stark Industrial Products with same-day shipping on in-stock orders and 24/7 phone support at (903) 768-1111 to confirm XA(T,H,V)S series compressor model fitment before you order.