Rexroth Piston Pump A4VG28/40/45/56/71/90/100/105/110/125140/145/175/180/250/500 Spare Parts For Repair Maintain
Rexroth Piston Pump A4VG28/40/45/56/71/90/100/105/110/125140/145/175/180/250/500 Spare Parts For Repair Maintain suppliers
Rexroth Piston Pump A4VG28/40/45/56/71/90/100/105/110/125140/145/175/180/250/500 Spare Parts For Repair Maintain factory
Rexroth Piston Pump A4VG28/40/45/56/71/90/100/105/110/125140/145/175/180/250/500 Spare Parts For Repair Maintain
Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of rexroth piston pump a4vg28/40/45/56/71/90/100/105/110/125140/145/175/180/250/500 spare parts for repair maintain in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.
| NO | DESCRIPTION | QTY/SET |
|---|---|---|
| 1 | Cylinder Block | 1 |
| 2 | Valve Plate | 1 |
| 3 | Piston | 9 |
| 4 | Retainer Plate | 1 |
| 5 | Ball Guide | 1 |
| 6 | Drive Shaft | 1 |
| 7 | Swash Plate | 1 |
| 8 | Saddle Bearing | 2 |
| 9 | Bearing | 2 |
| 10 | Bearing Seat | 1 |
| 11 | Bearing | 1 |
| 12 | Bush | 1 |
| 13 | Inner Gear | 1 |
| 14 | Outer Gear | 1 |
| 15 | Charge Pump Plate | 1 |
| 16 | Charge Pump | 1 |
| 17 | Block Spring | 4 |
| Part Name | A4VG28 | A4VG40 | A4VG45 | A4VG56 | A4VG71 | A4VG90 | A4VG100 | A4VG105 | A4VG110 |
|---|---|---|---|---|---|---|---|---|---|
| Cylinder Block | A4VG28 Cylinder Block | A4VG40 Cylinder Block | A4VG45 Cylinder Block | A4VG56 Cylinder Block | A4VG71 Cylinder Block | A4VG90 Cylinder Block | A4VG100 Cylinder Block | A4VG105 Cylinder Block | A4VG110 Cylinder Block |
| Valve Plate | A4VG28 Valve Plate | A4VG40 Valve Plate | A4VG45 Valve Plate | A4VG56 Valve Plate | A4VG71 Valve Plate | A4VG90 Valve Plate | A4VG100 Valve Plate | A4VG105 Valve Plate | A4VG110 Valve Plate |
| Piston | A4VG28 Piston | A4VG40 Piston | A4VG45 Piston | A4VG56 Piston | A4VG71 Piston | A4VG90 Piston | A4VG100 Piston | A4VG105 Piston | A4VG110 Piston |
| Retainer Plate | A4VG28 Retainer Plate | A4VG40 Retainer Plate | A4VG45 Retainer Plate | A4VG56 Retainer Plate | A4VG71 Retainer Plate | A4VG90 Retainer Plate | A4VG100 Retainer Plate | A4VG105 Retainer Plate | A4VG110 Retainer Plate |
| Ball Guide | A4VG28 Ball Guide | A4VG40 Ball Guide | A4VG45 Ball Guide | A4VG56 Ball Guide | A4VG71 Ball Guide | A4VG90 Ball Guide | A4VG100 Ball Guide | A4VG105 Ball Guide | A4VG110 Ball Guide |
| Drive Shaft | A4VG28 Drive Shaft | A4VG40 Drive Shaft | A4VG45 Drive Shaft | A4VG56 Drive Shaft | A4VG71 Drive Shaft | A4VG90 Drive Shaft | A4VG100 Drive Shaft | A4VG105 Drive Shaft | A4VG110 Drive Shaft |
| Swash Plate | A4VG28 Swash Plate | A4VG40 Swash Plate | A4VG45 Swash Plate | A4VG56 Swash Plate | A4VG71 Swash Plate | A4VG90 Swash Plate | A4VG100 Swash Plate | A4VG105 Swash Plate | A4VG110 Swash Plate |
| Saddle Bearing | A4VG28 Saddle Bearing | A4VG40 Saddle Bearing | A4VG45 Saddle Bearing | A4VG56 Saddle Bearing | A4VG71 Saddle Bearing | A4VG90 Saddle Bearing | A4VG100 Saddle Bearing | A4VG105 Saddle Bearing | A4VG110 Saddle Bearing |
| Bearing | A4VG28 Bearing | A4VG40 Bearing | A4VG45 Bearing | A4VG56 Bearing | A4VG71 Bearing | A4VG90 Bearing | A4VG100 Bearing | A4VG105 Bearing | A4VG110 Bearing |
| Bearing Seat | A4VG28 Bearing Seat | A4VG40 Bearing Seat | A4VG45 Bearing Seat | A4VG56 Bearing Seat | A4VG71 Bearing Seat | A4VG90 Bearing Seat | A4VG100 Bearing Seat | A4VG105 Bearing Seat | A4VG110 Bearing Seat |
| Bush | A4VG28 Bush | A4VG40 Bush | A4VG45 Bush | A4VG56 Bush | A4VG71 Bush | A4VG90 Bush | A4VG100 Bush | A4VG105 Bush | A4VG110 Bush |
| Inner Gear | A4VG28 Inner Gear | A4VG40 Inner Gear | A4VG45 Inner Gear | A4VG56 Inner Gear | A4VG71 Inner Gear | A4VG90 Inner Gear | A4VG100 Inner Gear | A4VG105 Inner Gear | A4VG110 Inner Gear |
| Outer Gear | A4VG28 Outer Gear | A4VG40 Outer Gear | A4VG45 Outer Gear | A4VG56 Outer Gear | A4VG71 Outer Gear | A4VG90 Outer Gear | A4VG100 Outer Gear | A4VG105 Outer Gear | A4VG110 Outer Gear |
| Charge Pump Plate | A4VG28 Charge Pump Plate | A4VG40 Charge Pump Plate | A4VG45 Charge Pump Plate | A4VG56 Charge Pump Plate | A4VG71 Charge Pump Plate | A4VG90 Charge Pump Plate | A4VG100 Charge Pump Plate | A4VG105 Charge Pump Plate | A4VG110 Charge Pump Plate |
| Charge Pump | A4VG28 Charge Pump | A4VG40 Charge Pump | A4VG45 Charge Pump | A4VG56 Charge Pump | A4VG71 Charge Pump | A4VG90 Charge Pump | A4VG100 Charge Pump | A4VG105 Charge Pump | A4VG110 Charge Pump |
| Block Spring | A4VG28 Block Spring | A4VG40 Block Spring | A4VG45 Block Spring | A4VG56 Block Spring | A4VG71 Block Spring | A4VG90 Block Spring | A4VG100 Block Spring | A4VG105 Block Spring | A4VG110 Block Spring |
| Part Name | A4VG125 | A4VG140 | A4VG145 | A4VG175 | A4VG180 | A4VG250 | A4VG500 |
|---|---|---|---|---|---|---|---|
| Cylinder Block | A4VG125 Cylinder Block | A4VG140 Cylinder Block | A4VG145 Cylinder Block | A4VG175 Cylinder Block | A4VG180 Cylinder Block | A4VG250 Cylinder Block | A4VG500 Cylinder Block |
| Valve Plate | A4VG125 Valve Plate | A4VG140 Valve Plate | A4VG145 Valve Plate | A4VG175 Valve Plate | A4VG180 Valve Plate | A4VG250 Valve Plate | A4VG500 Valve Plate |
| Piston | A4VG125 Piston | A4VG140 Piston | A4VG145 Piston | A4VG175 Piston | A4VG180 Piston | A4VG250 Piston | A4VG500 Piston |
| Retainer Plate | A4VG125 Retainer Plate | A4VG140 Retainer Plate | A4VG145 Retainer Plate | A4VG175 Retainer Plate | A4VG180 Retainer Plate | A4VG250 Retainer Plate | A4VG500 Retainer Plate |
| Ball Guide | A4VG125 Ball Guide | A4VG140 Ball Guide | A4VG145 Ball Guide | A4VG175 Ball Guide | A4VG180 Ball Guide | A4VG250 Ball Guide | A4VG500 Ball Guide |
| Drive Shaft | A4VG125 Drive Shaft | A4VG140 Drive Shaft | A4VG145 Drive Shaft | A4VG175 Drive Shaft | A4VG180 Drive Shaft | A4VG250 Drive Shaft | A4VG500 Drive Shaft |
| Swash Plate | A4VG125 Swash Plate | A4VG140 Swash Plate | A4VG145 Swash Plate | A4VG175 Swash Plate | A4VG180 Swash Plate | A4VG250 Swash Plate | A4VG500 Swash Plate |
| Saddle Bearing | A4VG125 Saddle Bearing | A4VG140 Saddle Bearing | A4VG145 Saddle Bearing | A4VG175 Saddle Bearing | A4VG180 Saddle Bearing | A4VG250 Saddle Bearing | A4VG500 Saddle Bearing |
| Bearing | A4VG125 Bearing | A4VG140 Bearing | A4VG145 Bearing | A4VG175 Bearing | A4VG180 Bearing | A4VG250 Bearing | A4VG500 Bearing |
| Bearing Seat | A4VG125 Bearing Seat | A4VG140 Bearing Seat | A4VG145 Bearing Seat | A4VG175 Bearing Seat | A4VG180 Bearing Seat | A4VG250 Bearing Seat | A4VG500 Bearing Seat |
| Bush | A4VG125 Bush | A4VG140 Bush | A4VG145 Bush | A4VG175 Bush | A4VG180 Bush | A4VG250 Bush | A4VG500 Bush |
| Inner Gear | A4VG125 Inner Gear | A4VG140 Inner Gear | A4VG145 Inner Gear | A4VG175 Inner Gear | A4VG180 Inner Gear | A4VG250 Inner Gear | A4VG500 Inner Gear |
| Outer Gear | A4VG125 Outer Gear | A4VG140 Outer Gear | A4VG145 Outer Gear | A4VG175 Outer Gear | A4VG180 Outer Gear | A4VG250 Outer Gear | A4VG500 Outer Gear |
| Charge Pump Plate | A4VG125 Charge Pump Plate | A4VG140 Charge Pump Plate | A4VG145 Charge Pump Plate | A4VG175 Charge Pump Plate | A4VG180 Charge Pump Plate | A4VG250 Charge Pump Plate | A4VG500 Charge Pump Plate |
| Charge Pump | A4VG125 Charge Pump | A4VG140 Charge Pump | A4VG145 Charge Pump | A4VG175 Charge Pump | A4VG180 Charge Pump | A4VG250 Charge Pump | A4VG500 Charge Pump |
| Block Spring | A4VG125 Block Spring | A4VG140 Block Spring | A4VG145 Block Spring | A4VG175 Block Spring | A4VG180 Block Spring | A4VG250 Block Spring | A4VG500 Block Spring |
Rexroth A4VG Series Hydraulic Pumps - Technical Specifications
| Series | Displacement Range | Circuit Type | Typical Applications |
|---|---|---|---|
| A4VG28 | 28 cc/rev | Closed circuit | Compact excavators, skid steer loaders |
| A4VG40 | 40 cc/rev | Closed circuit | Excavators 6–8 ton class |
| A4VG45 | 45 cc/rev | Closed circuit | Excavators 6–8 ton class |
| A4VG56 | 56 cc/rev | Closed circuit | Excavators 8–10 ton class |
| A4VG71 | 71 cc/rev | Closed circuit | Excavators 10–14 ton class |
| A4VG90 | 90 cc/rev | Closed circuit | Excavators 14–16 ton class |
| A4VG100 | 100 cc/rev | Closed circuit | Excavators 16–20 ton class |
| A4VG105 | 105 cc/rev | Closed circuit | Mid-size excavators |
| A4VG110 | 110 cc/rev | Closed circuit | Mid-size excavators |
| A4VG125 | 125 cc/rev | Closed circuit | Excavators 20–25 ton class |
| A4VG140 | 140 cc/rev | Closed circuit | Large excavators |
| A4VG145 | 145 cc/rev | Closed circuit | Large excavators |
| A4VG175 | 175 cc/rev | Closed circuit | 25–30 ton excavators |
| A4VG180 | 180 cc/rev | Closed circuit | 25–30 ton excavators |
| A4VG250 | 250 cc/rev | Closed circuit | Large mining excavators |
| A4VG500 | 500 cc/rev | Closed circuit | Heavy mining equipment |
The Rexroth A4VG series is a swash plate axial piston pump designed for closed-circuit mobile hydraulic applications. It is widely used in tracked excavators, wheel loaders, road milling machines, and other heavy construction equipment that requires reliable high-torque drive performance under continuous load.
We supply complete A4VG series pumps and individual replacement parts. The internal repair kit contains 17 core components: cylinder block, valve plate, 9 pistons, retainer plate, ball guide, drive shaft, swash plate, 2 saddle bearings, bearing, bearing seat, bush, inner gear, outer gear, charge pump plate, charge pump, and block spring.
Each component is manufactured to Rexroth OEM specifications. Cylinder block bores are precision-honed, valve plates are lapped for a tight sealing surface, and pistons are heat-treated for wear resistance. Available for fast shipment worldwide, with custom OEM/ODM packaging and private-label support.
Part reference: A4VG28, A4VG40, A4VG45, A4VG56, A4VG71, A4VG90, A4VG100, A4VG105, A4VG110, A4VG125, A4VG140, A4VG145, A4VG175, A4VG180, A4VG250, A4VG500
Rexroth A4VG Series Hydraulic Pumps - Parts and Repair Kit
The A4VG series is the closed-circuit pump you'll find on just about every mid-size to large excavator made in the last 15 years. Rexorch built it for a reason - it's simple, reliable, and rebuildable. After 8,000 to 10,000 hours of operation, the internals start wearing out. Pressure drops, the pump starts whining, and eventually you're rebuilding it or replacing the whole unit.
We stock the replacement parts you need. The rebuild kit for the A4VG line includes 17 core components: cylinder block, valve plate, nine pistons, retainer plate, ball guide, drive shaft, swash plate, saddle bearings, bearings, bearing seat, bush, inner gear, outer gear, charge pump plate, charge pump, and block spring. Those are the parts that actually wear. Everything else - seals, o-rings, gaskets - is cheap and easy.
The series runs from the A4VG28 up through the A4VG40, A4VG45, A4VG56, A4VG71, A4VG90, A4VG100, A4VG105, A4VG110, A4VG125, A4VG140, A4VG145, A4VG175, A4VG180, and the big A4VG250 and A4VG500. Whatever displacement you're working on, the internal wear pattern is the same. The cylinder block bore scores, the valve plate pits, the pistons lose their seal, and the bearings get sloppy.
We manufacture these parts to match the original Rexroth tolerances. The bores are honed, the valve plates are lapped, and the pistons are heat-treated. We don't cut corners on the parts that matter.
If you're working on other Rexroth pumps, we carry parts for most of the lineup - A4VSO, A4VTG, A10VSO, A10VO, A11VO, A15VSO, A20VO, A8VO, and the bent-axis pumps like A2F and A2FO. Beyond Rexroth, we stock parts for Komatsu HPV, Hitachi HPV, CAT SBS, Kawasaki K3V, Sauer SPV, Linde HPR, Parker F11, Eaton PVH, Nachi PVD, and a few others.
A lot of our customers put their own brand on the box. We do laser marking and custom packaging - whatever you need. Every component gets inspected before it ships. Send us your pump model and we'll get back to you quickly.
FAQ
WUHAN XIN LAI FU HYDRAULIC PNEUMATIC EQUIPMENT CO.LTD
Q: Is there a customization option available? For example, OEM/ODM?
A: Yes, We can provide customized services.
Q: Can you make my own brand on the products?
A: Of course we can.
Q: How to obtain a detailed quotation?
A: Mobile,Whatsapp,Wechat: +86-18995500394
Mail :kate_bao@rexroth-hyd.com
Q: What is the MOQ?
A: Determine MOQ based on your product, standard product: MOQ 1pc, non-standard: 10-500pcs
Q: What payment methods are supported?
A: TT/PayPal/Western Union/Credit Card/Bank Transfer
Q: What is your payment terms?
A: Sample order,full payment in advance;full order,30% /50% deposit and the balance before shipment.
Q: How long is the delivery time?
A: Spot products are expected to take 2-3 working days, while futures products are determined based on the delivery time.
Q: How long does the warranty ?
A: Warranty 12 months
Q: Does your company have ISO certification?
A: Yes , we have
Q: Can you provide samples?
A: Yes , we can supply sample ,but not free .
Contact with me pls if you have other questions!
I am waiting for your good news!
Best regards,
Kate bao
Mobile,Whatsapp,Wechat: +86-18995500394
Mail :kate_bao@rexroth-hyd.com
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