Model code — A4VSO71DR/10R-PPB13KB5-SO103
Decoded position by position against the RE 92050 model code table (14 positions). Positions 09–14 form one continuous options string without separators; this unit reads as follows:
| Position | Value | Meaning |
|---|---|---|
| 01 Hydraulic fluid | — | omitted — mineral oil + HFD |
| 02 Unit | A4VS | swashplate variable pump (350 bar nominal / 400 bar peak) |
| 03 Boost pump | — | omitted — no boost pump (L only on NG750) |
| 04 Mode | O | open circuit |
| 05 Size (NG) | 71 | nominal size NG71 |
| 06 Controller | DR | pressure control (constant pressure) |
| 07 Design series | 10 | Series 1x (NG40 / 71) |
| 08 Rotation | R | clockwise, viewed from the drive shaft end |
| 09 Seal material | P | NBR body with PTFE shaft seal (for HFA / HFB / HFC) |
| 10 Drive shaft | P | straight key shaft, DIN 6885 |
| 11 Mounting flange | B | ISO 3019-2 metric 4-hole (NG40–500) |
| 12 Work ports | 13 | standard: SAE flange on B/S side, 90°, metric threads |
| 13 Through-drive flange | KB5 | SAE J744 or ISO 3019-2 metric through drive: KB5 |
| 14 Filtration | — | omitted — no filter |
| Additional code | -SO103 | not detailed in the reference table — we confirm this against the order before shipping |
Note: P in position 09 is a seal code, while P in position 10 is a straight key shaft — the same letter has two different meanings. H in position 11 is the ISO 3019-2 eight-hole flange (NG500 / 750 / 1000).
Product overview
New aftermarket A4VSO71DR/10R-PPB13KB5-SO103 axial piston pump. Swashplate-type variable displacement pump for open circuit, from the A4VSO Series 10/11/30 family. Size NG71, geometric displacement 71 cm3/rev.
Nominal pressure 350 bar, peak pressure 400 bar. Maximum drive speed 2200 rpm at Vg max; flow approx. 107 L/min at 1500 rpm.
This listing covers the A4VSO 71 DR version. Supply is as a new aftermarket replacement unit, quality checked before shipping. Because the full model code defines mounting, seals, shaft and ports, please send us your complete nameplate code before ordering and we will confirm the exact configuration.
Control: DR pressure controller
The DR control limits the pump pressure to the set value on the pressure port B. At the set pressure the pump swivels back to approximately zero displacement and only delivers the flow needed to maintain pressure.
Other sizes and controls
Other A4VSO sizes (NG40 to NG500) and controls are available on request. Send us your requirements.
Other models on this size
This NG71 pump is also available in these variants:
- A4VSO71DR/10R-VPB25N00 — DR pressure control
- A4VSO71DR/10R-VPB13N00 — DR pressure control
- A4VSO71DR/10R-PPB13N00E — DR pressure control
- A4VSO71DFR/10L-PPB13N00-SO86 — DFR pressure and flow control (load sensing)
- A4VSO71DFR/10R-PPB13N00-SO86 — DFR pressure and flow control (load sensing)
Series overview: A4VSO Piston Pump. Other sizes and controls (NG40 to NG1000): Piston Pumps.
Not sure what you need? Send us the full code from the nameplate and we will confirm the correct configuration. Contact us
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