Bobcat 520 to early 643 Hydraulic Drive Motor

New hydraulic drive motor for replacement on Bobcat models 520, 530, 533, 540, 542, 543, 630, 631, 632, 641, 642 and 643.  It replaces Bobcat part number 6599718.

This motor also replaces Thomas T103, Ford CL35, and Mustang 322, 332, and 930A.

It has a tapered, keyed shaft and #10 O-ring Boss ports.

If your machine has the older TRW Ross drive motor, you need to buy a pair of these replacement motors. The older TRW Ross motor part number 6562006 is no longer available new. The part number for a reman Ross motor was 6630245. It travels a little slower and will run in circles if paired with one of these replacement motors.

The newer 40 series machines have a splined shaft.  That motor is also available if you want to spend the extra money required to buy new sprockets.

We also sell the parts for this motor if you do not need to replace the whole motor.  However, we do not have any parts for the older TRW Ross motors, not even seal kits.

This motor is originally used or used as a replacement on the following serial number machines:

520, 530, 533, 630, 631, and 632 all serial numbers

540, 542, and 543 serial number break not available, check your motor number and shaft type.

641 before serial number 13345

642 before serial number 13345

643 before serial number 13619

If you have a later machine, you will need the Eaton hydraulic motor with the splined shaft.

These motors have a full one year warranty.

*Since drive motors are installed new by the OEM in pairs. Loader Parts Source, Inc. always recommends changing both drive motors as they have been exposed to the same wear and tear. This could save future down time and expense.*