2651546455 Atlas Copco OEM Drive Coupler

The 2651546455 Atlas Copco OEM Drive Coupler is an OEM coupling for Atlas Copco crawler-mounted drill platforms used in mining and heavy construction. This elastomeric coupler provides the flexible link between the rig engine and the high-pressure air compressor mounted on the machine.

Drilling rigs in the Atlas Copco lineup deliver high-volume compressed air at pressures up to 350 psi for downhole hammer operation. The drive coupler in these machines absorbs the repetitive shock of diesel combustion pulses and protects both the engine output shaft and the compressor input from premature bearing failure. A failing coupler produces audible drivetrain noise, visible vibration at the frame rails, and inconsistent air pressure readings at the operator panel.

This is a factory-specified part that drops into the original mounting position without modification. Remove the old element completely, inspect both hub faces for scoring or heat damage, and confirm shaft alignment before installing the new coupler. Run the rig at idle for several minutes after installation to verify smooth operation.

Available from Stark Industrial Products with same-day shipping on in-stock inventory.