1-3/8 6 Spline fits most modern tractors. The item "Hydraulic Tractor PTO Pump For Backhoe Log Splitter Attachment. SP" is in sale since Friday, November 1, 2019.This item is in the category "Business & Industrial\Agriculture & Forestry\Forestry Equipment & Supplies\Equipment". The seller is "harleyclaar" and is located in Altoona, Pennsylvania. This item can be shipped to United States.