Bobcat 631

Parts Compatible with the Bobcat 631 Skid Steer Loader

The 631 belongs to Bobcat's earliest widely fielded generation, and machines still working today are approaching fifty years of service. Its listings carry M-prefixed serial ranges such as 4977M11001 and above and 5005M11001 and above, the letter marking build configurations within the run, so quote the full serial including the M when confirming fitment.

Parts support for a machine this old concentrates on universal service items rather than model-exclusive components, and the 631's hardware crosses to the 630 and 632 it shared the 30-series platform with.

Common Replacement Parts for the Bobcat 631

The survivors' catalog: the in-line fuel filter replacing OEM 3885315 keeps the fuel run serviceable, the vibration damper replacing OEM 6560633 and press fit bushing replacing OEM 6665701 address mounts and pivots, and rectangular washers, hose clamps, and hex hardware cover the fasteners a five-decade machine consumes. Grease fittings and O-rings complete the staples.

Parts manuals are essential companions for the 30-series. Match by OEM number where your manual gives one, and our team can help translate older numbers against your full M-prefixed serial.