NEW Model GP-CBN-130 The 2-stage pump is excellent for use log splitter, press & machine tools, power units for snow plows, small displacement and modest pressure hydraulic system. It can provide faster cycle times & higher possible pressure with small engine. This is same pump used by SpeeCo, Champion, Oregon, MTD and many others. Use as a replacement or a "build it yourself splitter" The 2-stage pump can give you faster cycle times and higher possible pressure with a small engine. Excellent for use on log splitters, 85% efficient. Features & Specifications: * Stages: 2 * GPM: 13 * Construction: Extrusion Aluminum * Max. Operation Speed: 3600RPM * Max. Operation Pressure: 4000PSI * Shaft Extension: 1.5" * Shaft Diameter: 1/2" * Keyed Shaft: 1/8" Squarex * Inlet Port: 1.0" Diameter Tube * Outlet Port: 1/2" NPT * Weight: 6.3lbs * Ships USPS Priority medium flat rate box to all 50 USA states. * When looking at shaft and pump mounting surface, the shaft spins Clock Wise. * Your engine needs to spin Counter Clockwise as you look at that shaft.