Description:Shaft part # 173-2686 is for use with the articulating and oscillating hitch group that provides connection between engine end frame and non-engine end frame which permits oscillation and articulation on articulated machines.Attributes:• Material: Steel• Bearing Shoulder Diameter: 76.175 mm (2.999 in) 2 places• Length: 527.996 mm (20.787 in)• Outside Diameter: 92.075 mm (3.625 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.