How to distinguish the Rexroth A4VG series hydraulic pump parts?

Ordering of Parts For Rexroth to supply the correct parts for your unit, 

please include all of the following information along with your parts order.

Model Code 

Serial Number 

Unit Number 

Part Name 

Part Number

Due to modifications and improvements to our products, minor changes can occur to the parts, even though the type code may not necessarily reflect these changes.

The type number and serial number will guarantee that the correct parts for your unit are supplied.

Ordering Example To order a replacement rotary group for an AA4VG variable displacement pump having the above nameplate, the following information would be required.

+ Model Code AA4VG125NVD1/32LPSFN001S 

+ Serial Number G2014680 

+ Unit Number 5454-005-002 

* Part Name Charge Pressure Relief Valve 

* Part Number HU00434856

+ This information is taken from the nameplate on the pump. 

* This information is taken from the Application and Service Manual.

Assembly Number 

AA4VG71/32 

Item Description Qty 

Part Number 

1 Rotary Group Ass'y AA4VG71/32-R 5430-570-007 

1 Rotary Group Ass'y AA4VG71/32-L 5430-570-006 

2 Drive Shaft AA4VG71/32...S HU00921936 

2 Drive Shaft AA4VG71/32...T HU00921902 

3 Housing Ass'y 1 Pages 12 & 13 

4 Stroking Piston Ass'y 1 Pages 14 & 15 

5 Port Block Ass'y 1 Pages 16 & 17 6 Control AA4VG71HW/32 w/o NSS HU00606891 

6 Control AA4VG71HW/32 w/NSS HU00607228 

6 Control AA4VG71HD/32 HU00429114 6 Control AA4VG71EP1/32 HU00428139 

6 Control AA4VG71EP2/32 HU00428138 

6 Control AA4VG71EZ1/32 HU00600074 

6 Control AA4VG71EZ2/32 HU00600076 

7 Stroking Piston Cover AA4VG71... HU00440243 

7 Stroking Piston Cover AA4VG71...M HU00921710 

7 Stroking Piston Cover AA4VG71...T HU00921716 

7 Stroking Piston Cover AA4VG71...M...T HU00651550 

8 Stroking Piston Cover AA4VG71... HU00440242 8 Stroking Piston Cover AA4VG71...M HU00921709 

8 Stroking Piston Cover AA4VG71...T HU00921715 

8 Stroking Piston Cover AA4VG71...M...T HU00651549 

9 Charge Pump AA4VG71/32...F00 HU00606657 

9 Thru Dr. Chg. Pump ...F01 (SAE-A) HU00606655 

9 Thru Dr. Chg. Pump ...F02 (SAE-B) HU00606661 

9 Thru Dr. Chg. Pump ...F04 (SAE-BB) HU00606658 

9 Thru Dr. Chg. Pump ...F07 (SAE-C) HU00606660

10 Stroking Time Orifice (0.8 mm) HU00156492 

10 Stroking Time Orifice (1.0 mm) HU00156493 

10 Stroking Time Orifice (1.2 mm) 2 HU00156494 

10 Stroking Time Orifice (1.4 mm) HU00156495 

10 Stroking Time Orifice (1.6 mm) HU00156496 

10 Stroking Time Orifice (1.8 mm) HU00156497 

11 Snap Ring (80 x 2.5 DIN 984) 2 HU02600001 

12 O-Ring (70 Duro Buna PRP-148) 2 68101-148 ❊▲ 

13 Front Bearing 1 HU00153104 

14 Shaft Seal-Buna HU00830971 ❊ 

14 Shaft Seal-FPM HU00830977 ▲ 

15 Snap Ring (40 x 1.75 DIN 471) 1 71119-009 16 Plug (9/16-18) 1 76107-006 16a O-Ring (90 Duro Buna Tube PRP-906) 1 68105-906 ❊▲■ 

17 Threaded Pin (M12 x 1.5DIN 913-10.9) 1 HU00154982 

18 Seal Nut (M12 x 1.5) 1 65110-008 ❊▲ 

19 Filtration Options 1 Pages 42 & 43 20 H.P.R.V. w/ Tow Option (1450-6100 psi) 2 HU02600466 20a O-Ring (90 Duro Buna PRP-123) 2 68104-123 ❊▲❑ 20b Back-Up Ring (23.5 x 28 x 1.04) 2 RR00014145 ❊▲❑ 

20c O-Ring (90 Duro Buna PRP-119) 2 68104-119 ❊▲❑ 

20d JamNut (M14 x 1) 2 RR00646747 ❑ 

21 Seal Nut (M10 x 1) 65110-007

❊ Included in Seal Kit (P) 5430-635-025 

▲ Included in Seal Kit (N) 5430-635-026 

❑ Included with HU00832125 

■ Included with 76107-006

22 Stroke Limiting Screw HU00430349 

23 Charge Relief Valve HU00434856 

23a O-Ring (90 Duro Buna PRP-119) 1 68104-119 ❊▲★ 

24 Plug (3/4-16) 1 76107-008 

24a O-Ring (90 Duro Buna Tube PRP-908) 1 68105-908 ❊▲❍ 

26 Lens Pin 1 HU00405732 

27 O-Ring (90 Duro Buna PRP-119) 1 68104-119 ❊▲ 

28 Plug (M33 x 2 DIN 908-5.8) 1 76118-003 

29 Plug (M8 x 1 DIN 906-5.8) 1 76117-003 

30 Jam Nut (BM16 x 1.5 DIN 439-04AU) 1 HU00157477 

32 Plug (7/16-20) 2 76107-004 

32a O-Ring (90 Duro Buna Tube PRP-904) 2 68105-904 ❊▲■ 

36 Cap Screw (M6 x 20 DIN 912-10.9) 8 60119-055

❊ Included in Seal Kit (P) 5430-635-025 

▲ Included in Seal Kit (N) 5430-635-026 

★ Included with HU00434856 

■ Included with 76107-004 

❍ Included with 76107-008

Assembly Number 

5430-570-007

1 Barrel 1 HU00445205 

2 Lens/CW 1 HU00650709/CW 

3 Piston 9 HU00416736 

4 Retaining Plate 1 HU00921904 

5 Swash Plate 1 HU00443361 

6 Retaining Ball 1 HU00921905 

7 Cup Spring Stack 1 HU00921901 

8 Preload Shim (1.20 mm) 1 HU00432987 ■ 

8 Preload Shim (1.00 mm) 0 HU00432988 ■ 

8 Preload Shim (0.80 mm) 0 HU00432989 ■ 

8 Preload Shim (0.60 mm) 0 HU00432990 ■ 

9 Bearing Race 1 HU00650052 

10 Cradle Bearing Set 1 HU00830152 

11 Wire 2 HU00076233 

12 Lever 1 HU00430415 

13 Shim (44.90 x 30.70 x 3.0 mm) 2 HU00921903 

14 Spring 1 HU00435254 

15 Retaining Ring (45 x 1.75 DIN 472) 1 71128-043

■ Select the correct shim to set the rotary group preload

Assembly Number 

Housing Ass'y

1 Housing 1 5430-566-010 

2 Bushing 2 HU00430306 

3 O-Ring (70 Duro Buna PRP-148) 2 68101-148 ❊▲ 

4 Plug (7/16-20) 3 76107-004 4a O-Ring (90 Duro Buna Tube PRP-904) 3 68105-904 ❊❍ 

5 Plug (1 1/16-12) 1 76107-012 

5a O-Ring (90 Duro Buna Tube PRP-912) 1 68105-912 ❊▲■ 

6 Plug (M10 x 1.0) 2 76116-004 ❊▲ 

7 Spring Pin 2 HU00449714 

8 Pin (3 x 10 DIN 7344) 2 HU00156579

❊ Included in Seal Kit (P) 5430-635-025 

▲ Included in Seal Kit (N) 5430-635-026 

❍ Included with 76107-004 

■ Included with 76107-012

Assembly Number 

Stroking Piston Ass'y

1 Rod 1 HU00449239 

2 Piston 1 HU00651714 

3 Spring Collar 2 HU00651181 

4 Spacer Bushing (20.20 mm) 2 HU00432887 ■ 

4 Spacer Bushing (20.10 mm) 0 HU00432888 ■ 

4 Spacer Bushing (20.40 mm) 0 HU00432889 ■ 

5 Spring Collar 2 HU00449248 

7 Retaining Ring (58 x 2 DIN 472) 1 HU00083407 

8 Keepers (5.77 mm) 2 HU00436307 ✖ 

8 Keepers (5.82 mm) 0 HU00436308 ✖ 

8 Keepers (5.87 mm) 0 HU00436309 ✖ 

8 Keepers (8.92 mm) 0 HU00436310 ✖ 

8 Keepers (5.97 mm) 0 HU00436311 ✖ 

8 Keepers (6.02 mm) 0 HU00436347 ✖ 

9 Retainer 2 HU00443580 

10 O-Ring (90 Duro Buna PRP-012) 1 68104-012 ❊▲ 

11 Spring (NV, HD ,EP, HW control) 2 HU00432979 

11 Spring (DG control) 2 HU00432885 

12 Spring (DG control) 2 HU00432886 

13 Spring (DG control) 2 HU00432898

❊ Included in Seal Kit (P) 5430-635-025 

▲ Included in Seal Kit (N) 5430-635-026 

✖ Choose the correct keeper to set retaining plate position. 

■ Select the correct Spacer Bushing to set maximum displacement.

1 P.O.R. Assembly 1 HU00437084 

1a O-Ring (90 Duro Buna PRP-113) 1 68104-113 ❊▲❑ 

1b O-Ring (90 Duro Buna PRP-010) 1 68104-010 ❊▲❑ 

1c Seal Nut 1 65110-004 ❊ 

1d Adjusting Screw 1 H432167 

2 Plug (M10 x 1.0) 1 76116-004 ❊▲ 

3 Cap Screw (M16 x 90 DIN 912-10.9) 4 60119-186 

4 O-Ring (90 Duro Buna PRP-014) 2 68104-014 ❊▲ 

6 O-Ring (90 Duro Buna PRP-012) 2 68104-012 ❊▲ 

7 O-Ring (90 Duro Buna PRP-158) 1 68104-158 ❊▲ 

8 Plug (M8 x 1) 3 76116-015 ❊▲ 

9 Bushing Support 1 HU00444842 

10 Bushing 1 HU00426654 

12 Port Block 1 5430-430-012 

13 Plug (7/16-20) 1 76107-004 

13a O-Ring (90 Duro Buna Tube PRP-904) 1 68105-904 ❊▲■ 

14 Orifice (1.8 mm) 1 HU00156497

❊ Included in Seal Kit (P) 5430-635-025 

▲ Included in Seal Kit (N) 5430-635-026 

❑ Included with HU00437084 

■ Included with 76107-004