Parker Gear Oil Pump | PGP350

Parker PGP3560 Series Gear Pump

Parker PGP350 Series Fixed Displacement Gear Oil Pumps

Parker’s PGP350 Series fixed displacement hydraulic gear pumps are designed for maximum durability, high efficiency, and superior pressure performance in demanding mobile applications. Built with heavy-duty cast iron construction and precision-engineered internal components, these gear oil pumps deliver reliable, long-lasting operation under continuous high-duty-cycle conditions.

As part of Parker’s proven Commercial Gear Pump product line, the PGP350 Series gear pump provides consistent hydraulic power and smooth operation in construction, forestry, and oil & gas equipment. Its robust design allows it to handle high-pressure systems with ease, while maintaining low noise levels and excellent volumetric efficiency.

Available in standard, clutch, and tandem pump configurations, the PGP350 Series offers flexible options to meet a wide range of system requirements. Whether used in mobile machinery or stationary hydraulic systems, this hydraulic gear pump provides the performance and dependability needed to keep operations running efficiently.

Technical Specifications

  • Maximum Displacement: 6.4 inch3/rev, 105 cm3/rev
  • Media: n/a
  • Maximum Flow Rate: n/a
  • Maximum Operating Pressure: 3500 psi, 241 bar
  • Pump Type: Fixed, Gear
  • Body Material: Cast Iron
  • Operating Pressure: up to 3500 psi, up to 241 bar
  • Flow Rate: n/a
  • Displacement: up to 105 cm3/rev, up to 6.4 inch3/rev, 20.9 to 104.5
  • cm3/rev (Pump), 1.28 to 6.38 inch3/rev (Pump)
  • Product Type: Pump with cast iron bushing, external gear
  • Direction of Rotation: Clockwise, Counterclockwise
  • Mounting Type: 2-Bolt SAE including “ZF” style”, 4-Bolt SAE including “ZF” style”
  • Shaft Type: SAE Splined or Keyed
  • Shaft Seal Material: NBR, FPM [FKM]
  • Number of Ports: BSPP, Metric Split Flange, SAE Straight Thread, Split Flange
  • For Fluid Type: Fire Resistant fluids: water-oil emulsions 60/40 – HFB, water-glycol – HFC & phosphate-esters – HFD, Mineral oil
  • Operating Temperature: 0 to 180 °F w/standard seals, 0 to 150 °F w/FPM seals
  • Filter Efficiency Rating: 19/16 at 140 bar (2000 psi), according to ISO 4406., 17/14 at 210 bar (3000 psi), 15/12 at 275 bar (4000 psi)
  • Operating Speed: 400 to 3000 RPM
  • Radial Load Capacity: 1125 lb with Outboard Bearings
  • Maximum Inlet Pressure Rating: 15 psig
  • Maximum Continuous Vacuum Pressure: 130 mm-Hg at operating temperature., 5 inch-Hg at operating temperature.
  • Continuous Outlet Pressure: up to 241 bar, 3500.0 psi
  • Weight: 51 lb with 1″ gear. Add 1 lb each additional 1/4″ of gear.
  • Length: varies by configuration

Key Benefits

  • Three-piece cast iron construction for distribution flexibility
  • Cast Iron construction for durability
  • Balanced Thrust Plates minimize friction and leakage
  • Journal bearings for long life
  • Multiple sections available

Examples of Suitable Applications

  • Tire Trucks
  • Salt and sand spreaders
  • Aerial Lift
  • Low boy trailers
  • Live (Moving) Floor Trailers
  • Roll Off Trailers

Let's Talk

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