Description: Sprocket transfers engine power to the link assemblies and engage the link assembly to create motion.Attributes:• Material: Cast Iron• Hardened• Sprocket Teeth: 25• Internal Spline Number of Teeth: 52• Hub Width: 101.15 mm (3.982 in)• External Pitch Diameter: 405.32 mm (15.957 in)• Internal Pitch Diameter: 82.55 mm (3.250 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.