Rexroth Axial Piston Variable Pump A7VO 28/55/80/107/160/200/250/355/500 PUMP Spare Parts For Repair Maintain
Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of rexroth axial piston variable pump a7vo 28/55/80/107/160/200/250/355/500 pump 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 WITH RING | 7 |
| 4 | RING OF PISTON | 14 |
| 5 | SET PLATE | 1 |
| 6 | DRIVE SHAFT | 1 |
| 7 | CENTER PIN | 1 |
| 8 | SOCKET BOLT | 14 |

| Series | Displacement Range | Circuit Type | Typical Applications |
|---|---|---|---|
| A7VO Small Frame | 28 / 55 / 80 / 107 / 160 / 200 cc/rev | Open circuit | Mid-size excavators, construction equipment |
| A7VO Large Frame | 250 / 355 / 500 cc/rev | Open circuit | Large excavators, mining equipment, heavy industrial machinery |
| Part Name | A7VO28 | A7VO55 | A7VO80 | A7VO107 | A7VO160 | A7VO200 |
|---|---|---|---|---|---|---|
| Cylinder Block | A7VO28 Cylinder Block | A7VO55 Cylinder Block | A7VO80 Cylinder Block | A7VO107 Cylinder Block | A7VO160 Cylinder Block | A7VO200 Cylinder Block |
| Valve Plate | A7VO28 Valve Plate | A7VO55 Valve Plate | A7VO80 Valve Plate | A7VO107 Valve Plate | A7VO160 Valve Plate | A7VO200 Valve Plate |
| Piston with Ring | A7VO28 Piston with Ring | A7VO55 Piston with Ring | A7VO80 Piston with Ring | A7VO107 Piston with Ring | A7VO160 Piston with Ring | A7VO200 Piston with Ring |
| Ring of Piston | A7VO28 Ring of Piston | A7VO55 Ring of Piston | A7VO80 Ring of Piston | A7VO107 Ring of Piston | A7VO160 Ring of Piston | A7VO200 Ring of Piston |
| Set Plate | A7VO28 Set Plate | A7VO55 Set Plate | A7VO80 Set Plate | A7VO107 Set Plate | A7VO160 Set Plate | A7VO200 Set Plate |
| Drive Shaft | A7VO28 Drive Shaft | A7VO55 Drive Shaft | A7VO80 Drive Shaft | A7VO107 Drive Shaft | A7VO160 Drive Shaft | A7VO200 Drive Shaft |
| Center Pin | A7VO28 Center Pin | A7VO55 Center Pin | A7VO80 Center Pin | A7VO107 Center Pin | A7VO160 Center Pin | A7VO200 Center Pin |
| Socket Bolt | A7VO28 Socket Bolt | A7VO55 Socket Bolt | A7VO80 Socket Bolt | A7VO107 Socket Bolt | A7VO160 Socket Bolt | A7VO200 Socket Bolt |
| Part Name | A7VO250 | A7VO355 | A7VO500 |
|---|---|---|---|
| Cylinder Block | A7VO250 Cylinder Block | A7VO355 Cylinder Block | A7VO500 Cylinder Block |
| Valve Plate | A7VO250 Valve Plate | A7VO355 Valve Plate | A7VO500 Valve Plate |
| Piston with Ring | A7VO250 Piston with Ring | A7VO355 Piston with Ring | A7VO500 Piston with Ring |
| Ring of Piston | A7VO250 Ring of Piston | A7VO355 Ring of Piston | A7VO500 Ring of Piston |
| Set Plate | A7VO250 Set Plate | A7VO355 Set Plate | A7VO500 Set Plate |
| Drive Shaft | A7VO250 Drive Shaft | A7VO355 Drive Shaft | A7VO500 Drive Shaft |
| Center Pin | A7VO250 Center Pin | A7VO355 Center Pin | A7VO500 Center Pin |
| Socket Bolt | A7VO250 Socket Bolt | A7VO355 Socket Bolt | A7VO500 Socket Bolt |
The Rexroth A7VO series is a bent-axis axial piston pump designed for open-circuit mobile and industrial hydraulic applications. It is widely used in excavators, construction equipment, and mining machinery that requires reliable high-pressure performance under continuous load.
We supply complete A7VO series pumps and individual replacement parts. The internal repair kit contains 8 core components: cylinder block, valve plate, 7 pistons with rings, piston rings, set plate, drive shaft, center pin, and socket bolts.
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: A7VO28, A7VO55, A7VO80, A7VO107, A7VO160, A7VO200, A7VO250, A7VO355, A7VO500

Rexroth A7VO Series Bent-Axis Pumps
I've rebuilt hundreds of these things. The A7VO is the bent-axis pump you see on excavators, construction gear, mining rigs - all sorts of heavy machinery. It's not swash plate, it's bent-axis, so the cylinder block tilts at an angle instead of sitting flat. Different geometry, different wear patterns.
When it starts whining, or the pressure drops off, you know it's on its way out. Most shops just rebuild it. New OEM costs a fortune, and there's no guarantee it lasts longer.
We make the rebuild parts. Cylinder block, valve plate, pistons with rings, piston rings, set plate, drive shaft, center pin, socket bolts. Seals and gaskets you can get anywhere cheap - we skip those. The expensive stuff that actually determines pump life, that's what we make.
Huge size range. Small frame 28 to 200 cc/rev. Big frame 250 to 500. Covers everything from mid-size excavators up to mining machines.
Every part matches original Rexroth specs. Bores honed. Valve plates lapped. Pistons heat-treated. Checked before shipping.
We stock Rexroth parts across the board - A4VSO, A4VG, A4VTG, A10VSO, A10VO, A11VO, A15VSO, A20VO, A8VO, plus bent-axis stuff like A2F, A2FO, A7V, A6VM, A2FM.
Other brands too. Komatsu HPV, Hitachi HPV, CAT SBS, Kawasaki K3V, Sauer SPV, Linde HPR, Parker F11, Eaton PVH, Nachi PVD, Uchida AP2D, Kayaba PSVD, Yuken, Liebherr LPVD, Toshiba PVB, Oilgear PVK, Denison PV6. Plus Doosan, Volvo, Hyundai, Foton, Kato.
Send us your pump model, we'll quote you fast.
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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