Description:Cat input shaft assemblies are a key component in the planetary assemblies that power tough Cat transmissions to convert engine power into the exact combination of speed and force required by individual machines.Attributes:• Hardened steel shaft with dowels• End 1 External Spline Number of Teeth: 33• Center 1 External Spline Number of Teeth: 43• Center 2 External Spline Number of Teeth: 47• End 2 External Spline Number of Teeth: 39Application:Consult your owner's manual or contact your local Cat Dealer for more information.