Description:Cat® Service parts offer simple repair and replacement of system components in Cat heavy-duty equipment. Proper installation is still required to return the system to full functionality.Motor barrel assembly with bearing sleevesInternal involute splineRugged design for long lifeApplications:Used to service motor barrels on variable piston pumps in hydraulic systems of heavy-duty equipment. Consult your owner's manual or contact your local Cat Dealer for more information.