Newstar Bi-Rotational Hydraulic Pumps for Trucks Similar to Parker P20 Dowel Construction Type S-17641 Truck Parts supplies this line of bi-rotational hydraulic pumps for truck use. These are Muncie-style pumps, with pressure ranging from 2500 psi to 3000 psi. To suit varying size trucks and beds, we offer pumps with a range of gear widths and flow rates, ensuring that we have the right pump for your application.Pressure 2500 psiFlow Rate at 1000 RPMS 15 gpmGear Width 1 3/4 inFlange 2 - 4 Bolt "B"Ports 1-1/4" Side and 1" Rear NPTDrive Shaft 7/8 in - 13 Spline Replacement Part: PK15-2BPBB