
Eaton 4641 / 4643 — variable displacement axial piston motor 75 cm³
Eaton 4641 and 4643 are variable displacement axial piston motors of the Series 46, used in closed-loop hydrostatic drives. Applied by leading OEM equipment manufacturers — Case IH, John Deere, New Holland, Claas, Dynapac, Bomag, Vögele, Hamm, Caterpillar. The 4641 features a Face Seal, the 4643 a Lip Seal; both share identical hydraulic specifications.
Full model range in the section Eaton Series 46
Technical specifications
- Displacement: 0–75 cm³/rev
- Nominal pressure: 420 bar
- Peak pressure: 480 bar
- Maximum speed: 5380 rpm
- Flow rate: 79.2 GPM
- Control: hydraulic servo control
- Seal: Face Seal (4641) / Lip Seal (4643)
- Weight: 42–48 kg
Installed in equipment
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Equipment types
- Transit mixer
- Harvester
- Winches and drum drives
- Dozer
- Loader
- Backhoe loader
- Asphalt paver
- Roller / Compactor
OEM numbers 4641 / 4643
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Eaton
- 4641-002
Spare parts for Eaton 4641 / 4643
- Cylinder block Rotor
- Ball guide
- Disk Spring
- Friction Plate
- Coupling of drive shaft
- Cylinder block press pin
- Roller Bearing
- Cradle Bearing Set
- Retainer Plate
- Swash plate (cam rocker)
- Piston
- Rotor Spring
- Control Valve Regulator
- Seal kit motor
- Shaft Seal
- Servo Piston
- Drive Shaft motor
- Pressure Override Valve
- Valve plate
- Ball guide washer
- Washer
Repair and service 4641 / 4643
Diagnostics and repair of hydraulic motor Eaton 4641 / 4643: monitoring operating pressure and leaks, inspection of the piston group and valve plate, and bench testing after repair.
Contact us — we will repair 4641 / 4643 and provide spare parts with quality warranty.
Technical specifications verified by the Aspect Plus technical catalog.