WOODRUFF KEY (CAT CT28908)

A damaged woodruff key can cause a rotating component to slip, leading to a loss of drive or timing. During inspection, a worn or sheared key may be identified by unusual play between the shaft and hub. The woodruff key's primary function is to transmit torque between a shaft and a mating part, such as a gear or pulley. A common failure consequence is sudden power loss or misalignment of the attached component. Keeping a woodruff key in sound condition helps maintain consistent rotational engagement. This aftermarket replacement part references CAT as the OE maker and carries the cross-reference part number CT28908. Verify the serial number or application, then call (562) 693-7748.

Part number variants: CT28908, ct28908