Unit · AXIAL-PISTON PUMP
AA4VG56HDDM1/32L-NTC52F045PR902015814
Axial piston pump Bosch Rexroth series A4VG, type code AA4VG56HDDM1/32L-NTC52F045P, material number R902015814. Nominal size: NG 56. Axial piston unit: swashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psi (A4V). Operating mode: pump, closed circuit (G). Pressure cut-off: pressure cut-off (D). Mechanical stroke limiter: mechanical stroke limiter, externally adjustable (M). DA control valve: without DA control valve (1). Direction of rotation: viewed on drive shaft counter-clockwise (L). Sealing material: NBR (nitrile rubber), shaft seal made of FKM (fluorocarbon rubber) (N). Drive shaft: splined shaft ANSI B92.1a for combination pump – 1st pump (T). Mounting flange: SAE J744 2-hole (C). Working port (port plate): SAE working port A and B, top and bottom suction port S bottom (52). Boost pump: integrated boost pump with and without through drive (F). Through drive: flange SAE J744 Hub for splined shaft, 101-2 (B) 1 in 15T 16/32DP (04). High-pressure relief valve Setting range ∆pHD: high-pressure relief valve 3600 to 6100 psi direct operated, fixed setting (250 to 420 bar) with bypass (5). Filtration boost circuit/external boost pressure supply: attachment filter with cold start valve and visual contamination indicator (P).
- Number
- R902015814
- Type code
- AA4VG56HDDM1/32L-NTC52F045P
- Group
- A4VG 56
- Edition
- 12/2019

| Pos. | Number | Name | Qty | Add to inquiry |
|---|---|---|---|---|
| — | ROTARY GROUP Assembly parts list →L | 1 | ||
| — | CONTROL Assembly parts list →L | 1 | ||
| R909609345 | CONNECTION PLATE Assembly parts list →L | 1 | ||
| R909606393 | INTERNAL GEAR PUMP Assembly parts list →L | 1 | ||
| — | CONTROL MODULE Assembly parts list →L | 1 | ||
| R902033738 | FILTER Assembly parts list →L | 1 | ||
| 7 | R902066044 | CONTROL CARTRIDGE Assembly parts list →L | 1 | |
| — | HOUSING | 1 | ||
| R902132713 | PIVOT PIN | 1 | ||
| R909154480 | SCREW PLUGD | 1 | ||
| R909153371 | SCREW PLUGD | 1 | ||
| R909154478 | SCREW PLUGD | 4 | ||
| R909153815 | SCREW PLUGD | 3 | ||
| — | DOUBLE BREAK-OFF PLUG | 2 | ||
| R909156493 | NOZZLE | 2 | ||
| R913016373 | SLOTTED SPRING PIN | 2 | ||
| R909153364 | SCREW PLUGD | 1 | ||
| R909153338 | SCREW PLUGD | 1 | ||
| R909435856 | ECCENTRIC SCREW | 1 | ||
| R909153271 | SEALING NUTD | 1 | ||
| R909831347 | PLUG | 1 |
Parameters from the type code
| Item | Meaning | Code |
|---|---|---|
| Axial piston unit | Swashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psi | A4V |
| Operating mode | Pump, closed circuit | G |
| Size (NG) | 56 | 56 |
| Pressure cut-off | Pressure cut-off | D |
| Mechanical stroke limiter | Mechanical stroke limiter, externally adjustable | M |
| DA control valve | Without DA control valve | 1 |
| Series | Series 3, index 2 | 32 |
| Direction of rotation | Viewed on drive shaft counter-clockwise | L |
| Sealing material | NBR (nitrile rubber), shaft seal made of FKM (fluorocarbon rubber) | N |
| Drive shaft | Splined shaft ANSI B92.1a for combination pump – 1st pump | T |
| Mounting flange | SAE J744 2-hole | C |
| Working port (port plate) | SAE working port A and B, top and bottom suction port S bottom | 52 |
| Boost pump | Integrated boost pump with and without through drive | F |
| Through drive | Flange SAE J744 Hub for splined shaft, 101-2 (B) 1 in 15T 16/32DP | 04 |
| High-pressure relief valve Setting range ∆pHD | High-pressure relief valve 3600 to 6100 psi direct operated, fixed setting (250 to 420 bar) with bypass | 5 |
| Filtration boost circuit/external boost pressure supply | Attachment filter with cold start valve and visual contamination indicator | P |