Description:Input shaft assembly transfers power from torque converter to the transmission system of Cat heavy duty equipment.Attributes:• Hardened steel shaft with plug• End 1 & 2 External Spline Number of Teeth: 30• Center External Spline Number of Teeth: 37• Plug Thread Size: 1/2-14 NPTFApplication:Consult your owner's manual or contact your local Cat Dealer for more information.