The Parker P2 and P3 are variable displacement, open-circuit axial piston pumps in swashplate design, developed for heavy-duty mobile hydraulic applications. Both series share the same housing and mounting interface, with displacements from 60 to 145 cc/rev and continuous operating pressures up to 320 bar.

The P2 is a self-priming standard version. The P3 adds a built-in impeller, achieving higher self-priming speeds for operation in high-altitude environments or systems with restricted inlet conditions. An integrated ripple chamber — standard on all side-ported units — reduces outlet pressure pulsation by 40-60%, significantly lowering system noise without additional components.

Parker P2/P3 Key Features

Direct PTO mount — Compact envelope and unique port layout designed for direct mounting on mobile transmission PTOs — no adapter brackets needed. Standard on most construction, forestry and material handling transmissions, significantly reducing installation cost and complexity.

Integrated ripple chamber — Reduces outlet pressure pulsation by 40-60% compared to a pump without this technology — standard on all side-ported units. Less ripple means quieter systems, longer hose life and reduced noise insulation requirements on the machine.

P3 built-in impeller — The P3 version adds an internal supercharge impeller, enabling higher self-priming speeds and reliable operation at altitudes up to 3,660 m (12,000 ft) or with restricted inlet conditions — common in forestry and mining equipment.

Multiple control options — Pressure compensator (PA), load sensing (LA/LB) and torque-limiting with load sensing (TA/TB/TC/TD) — all available as factory-fitted options. Torque control is particularly valuable when engine power is shared between hydraulics and drivetrain.

Through-drive capability — Accepts a second pump in tandem across all frame sizes, enabling compact dual-pump configurations for machines with separate implement and steering circuits.

Parker P2/P3 Key Specifications

Pump type: Variable displacement axial piston, swashplate design

Circuit type: Open circuit

Displacement range: 60 - 145 cc/rev (P2); 75 - 145 cc/rev (P3)

Max continuous pressure: 320 bar (4,600 psi)

Peak pressure: 370 bar (5,365 psi)

Control options: PA (pressure comp), LA/LB (load sensing), TA/TB/TC/TD (torque + LS)

Mounting: SAE B 2-bolt, SAE C 2/4-bolt, SAE D 4-bolt

Seals: NBR single/double shaft seal; FKM single/double shaft seal

Hydraulic fluid: Premium mineral oil HLP, 15-40 cSt operating viscosity

Origin: Made in Germany

Weight & Performance by Model (with load sense control)

Model	Displacement (cc/rev)	Weight (kg)
P2060	60	37
P2075	75	44
P2105	105	63
P2145	145	78
P3075	75	42
P3105	105	62
P3145	145	76

Parker P2/P3 Applications

The P2/P3 series covers the most demanding mobile hydraulic markets.

Construction equipment — Wheel loaders, articulated dump trucks and surface drill rigs. Direct PTO mounting eliminates adapter costs; torque control (TA-TD) protects the engine during combined high-flow and high-pressure duty cycles.

Material handling — Reach stackers, heavy-lift trucks and all-terrain mobile cranes where high-pressure variable flow and a compact installation envelope are both required.

Forestry machinery — Forwarders and harvesters frequently operate at elevation or with long suction lines. The P3's built-in impeller maintains full flow output in these conditions.

Mining & drilling — Dump trucks and drill rigs in contaminated environments where robust design, long service intervals and reliable self-priming at any altitude matter.

Agriculture & municipal equipment — Harvesters, mowers and vocational vehicles benefiting from the compact envelope, load sensing control and low-noise ripple chamber technology.

Defense vehicles — Mobile equipment requiring reliable hydraulic power under extreme environmental and duty conditions, with flexible mounting options to suit diverse vehicle platforms.

Download:

Data Sheet Parker Axial Piston Variable Pumps P2/P3 Series