5421 5423

Eaton 5421 / 5423 — variable displacement axial piston pump 89 cm³

Eaton 5421 and 5423 are variable displacement axial piston pumps of the Series 54, designed for closed-loop hydrostatic drives. The integrated charge pump provides loop charging and servo control. Available control options — mechanical, hydraulic and electronic — allow the pump to be adapted to a wide range of applications. Used as the main drive in hydrostatic transmissions of transit mixers, combine harvesters, wheel loaders, asphalt pavers, road rollers, as well as in industrial installations — winches, cranes and drilling systems.

Full model range in the section Eaton Series 54

Technical specifications

• Displacement: 0–89 cm³
• Nominal pressure: 420 bar (6000 PSI)
• Peak pressure: 480 bar (7000 PSI)
• Maximum speed: 3720 rpm
• Control: mechanical / hydraulic / electronic (servo control)
• Seal: Face Seal (5421) / Lip Seal (5423)
• Weight: 29-32 kg

Installed in equipment

• Transit mixer

  • McNeilus
  • Con-Tech
  • Terex Advance
• Loader

  • Komatsu
  • Volvo
  • Case
  • JCB
• Backhoe loader

  • JCB
  • Case
  • Caterpillar
  • John Deere
• Asphalt paver

  • Dynapac
  • Bomag
  • Vögele
  • Caterpillar
• Dozer

  • Caterpillar
  • Case
  • Komatsu
• Harvester

  • Case IH
  • New Holland
  • John Deere
  • Claas
• Equipment types

  • Crane
  • Winches and drum drives
  • Industrial conveyor

OEM numbers 5421 / 5423

• Eaton

  • 5423-518
  • 5423-715
  • 5423-553
  • 5423-635
  • 5423-454
  • 5423-832

Spare parts for Eaton 5421 / 5423

• Cylinder block Rotor
• Drive Shaft
• Separation Bush
• Ball guide
• Disk Spring
• Snap Ring
• Slider
• Coupling of drive shaft
• Cylinder block press pin
• Charge Pump
• Roller Bearing
• Cradle Bearing Set
• Retainer Plate
• Swash plate (cam rocker)
• Piston shoe
• Rotor Spring
• Seal kit pump
• Shaft Seal
• Wire
• Valve plate
• Ball guide washer
• Pressure Override Valve
• Control Valve Regulator
• Regulator assembly
• Servo Piston

Repair and service 5421 / 5423

We accept axial piston pump Eaton 5421 / 5423 for repair: full diagnostics of hydraulic parameters, assessment of wear of pistons and cylinder block, seal inspection and bench testing after restoration.

Contact us — we will select spare parts and repair axial piston pump 5421 / 5423 with warranty.