PARKER Hydraulic piston pump 3781081

The Parker Hydraulic Piston Pump 3781081 is a high-performance axial piston pump engineered for heavy-duty mobile hydraulic systems where continuous high pressure, high flow, and reliability are mandatory. Designed to operate at up to 5,000 psi (350 bar), this pump delivers stable hydraulic power under severe working conditions typical of Volvo Trucks and other off-highway applications. With a maximum flow rate of 43 gpm (162.8 lpm) at rated speed and a rated speed of 2,000 rpm, the Parker 3781081 ensures efficient energy transfer and fast system response. Its robust internal architecture supports up to 102 hp (76.1 kW) input power, making it suitable for high-load hydraulic circuits without sacrificing durability or service life. The pump features a DIN mounting flange, allowing direct and secure installation on OEM hydraulic systems. Precision-machined components and Parker’s proven piston technology provide consistent volumetric efficiency, low internal leakage, and excellent resistance to wear, even during extended duty cycles. This hydraulic piston pump is widely used in demanding applications such as knuckle boom loaders, truck-mounted cranes, dump trucks, vacuum truck systems, refuse trucks, lift trucks, mowers, cutters, fan drives, and off-highway vehicles. It is an ideal OEM-grade replacement or upgrade solution for Volvo truck hydraulic systems requiring dependable high-pressure performance and long-term operational reliability.