The Direct Mount Hydraulic Dump Pump with Manual Valve from Buyers Products directly mounts to your PTO for a compact and efficient source of hydraulic power. It is designed for dump operations with 2 or 3 line plumbing and comes set up for standard cable-controlled shift operation. It's also available with air cylinder to convert to pneumatic control on shifter spool. Based on RPM, its output ranges from 13 to 46 GPM. It includes a relief valve set at 2500 PSI. The unit includes a 4 bolt SAE B mounting flange and 7/8 in. by 13 spline shaft. You will need to specify the pump rotation when ordering, which you can determine by looking at the pump with the shaft facing you and the belly of the pump facing down. Note: Buyers Products PTOs can be custom-ordered for your specific vehicle and application. Contact Hydraulic Technical Support for assistance in selecting the correct PTO.