Northman Fluid Power tandem hydraulic vane pump. 127.5 GPM total volume, 75 GPM shaft end and 52.5 GPM on the cover end at 1800 RPM. SAE C 2 bolt mounting flange. Inlet port is 4" flange pressure ports are 1 1/4" Code 61 flange on the cover end and 1 1/2" Code 61 flange on the shaft end. 1 1/4" keyed shaft. Shaft end maximum pressure is 2,500 psi and 2,500 psi on the cover end. Interchanges with Vickers 4535V-50A35-1CC22R or 02-137471-3. 12 month manufacturer's warranty.