Bosch Rexroth A8VO Series Variable Displacement Dual Pump Parts & Rotary Group (A8VO55 to A8VO250)
100% interchangeable rotary group & spare parts engineered for Bosch Rexroth A8VO variable dual axial piston pumps, in-stock with OEM-grade quality.
- ✓100% Interchangeable
- ✓Durable & High-Wear Resistance
- ✓Large Stock & Fast Shipping
Key Specifications
Item | Details | |
Brand | HYLINK | |
Product Category | Hydraulic Variable Dual Pump Spare Parts / Rotary Group / Overhaul Repair Kits | |
Compatible Brand | Replacement for Bosch Rexroth (A8VO Series) — 100% Interchangeable | |
Available Frame Sizes | A8VO55 / A8VO80 / A8VO107 / A8VO120 / A8VO140 / A8VO160 / A8VO200 / A8VO225 / A8VO250 | |
Applicable Machines | Heavy excavators, crawler cranes, mobile drilling rigs, forestry equipment, and multi-circuit hydraulic machines | |
Minimum Order Quantity | 1 Piece | |
Delivery Time | 1–3 days for in-stock items / 5–8 days for standard orders | |
Price | Inquire for a direct factory quote | |
Warranty | 6 months against manufacturing and material defects | |
Overview
HYLINK supplies precision-engineered Bosch Rexroth A8VO series (A8VO55, A8VO80, A8VO107, A8VO120, A8VO140, A8VO160, A8VO200, A8VO225, A8VO250) bent-axis axial piston variable dual pump replacement parts and complete rotary group overhaul kits. Specially designed for dual-circuit mobile hydraulic drives and heavy excavators, every part is manufactured to exact original specifications and quality inspected before shipment. This provides a cost-effective, high-performance replacement solution for hydraulic repair shops, distributors, and fleet maintenance teams worldwide.
Product Overview
The Bosch Rexroth A8VO series bent-axis variable displacement dual axial piston pumps serve as primary hydraulic power units in heavy excavator and construction equipment application. Operating under severe duty cycles, heavy impulse loads, and continuous high-pressure conditions, internal rotating components—including cylinder blocks, spherical pistons with connecting rods, valve plates, bearing plates, center pins, and spring assemblies—undergo progressive mechanical friction over time. Surface wear on critical sliding contact points leads to output volume loss, thermal elevation, internal fluid bypass, and reduced overall pump efficiency.
HYLINK produces high-precision complete replacement rotary groups and individual spare parts across all A8VO frame sizes from 55 to 250 cm³/rev. Crafted from premium forged alloy steel and high-durability anti-friction bronze materials, every part undergoes micron-level CNC machining and CMM quality validation. This enables maintenance engineers to rebuild worn dual-pump rotating assemblies directly without replacing costly outer pump casings, significantly lowering downtime and overhaul expenses.
Available Components
Below is the standard component list for Bosch Rexroth A8VO series hydraulic pumps. Individual spare parts and complete overhaul repair kits are both available:
Item No. | Part Name | Qty. |
1 | Splined Shaft | 1 |
2 | Cylinder Block | 1 |
3 | Center Pin | 1 |
4 | Center Spring | 1 |
5 | Spring Washer | 1 |
6 | Retainer Plate | 1 |
7 | Piston | 9 |
8 | Valve Plate | 1 |
Quality Assurance & Manufacturing
Every HYLINK pump and replacement part undergoes strict quality control before shipment:
l Dimensional accuracy — checked with high-precision CMM (Coordinate Measuring Machines) to guarantee an exact fit with original pump housings.
l Material metallurgy — manufactured from premium forged steel and high-wear-resistant alloys to prevent premature fatigue.
l 100% performance test — every complete pump assembly is tested on our dynamic hydraulic test rig for pressure, flow rate and efficiency under full working load.
Packing, Shipping & Warranty
l Packaging — anti-rust protective film + heavy-duty foam cushioning + standard export fumigation-free wooden case (reinforced carton for small spare parts).
l Shipping — express courier (DHL / FedEx) for urgent repair orders; sea or air cargo for bulk orders.
l Warranty — 6 months quality assurance against manufacturing and material defects from the delivery date. In the event of a confirmed quality defect, HYLINK provides hassle-free replacement.
FAQ
Q: Are your SBS pump parts interchangeable with genuine Caterpillar parts?
A: Yes. All parts are produced to original specifications and dimensions and are 100% interchangeable — no modification is required during installation.
Q: What is the minimum order quantity?
A: 1 piece. We supply both individual components and complete rotary group / repair kits.
Q: How fast can you ship?
A: In-stock items are dispatched within 1–3 days; standard production orders take 5–8 days. Express and sea/air freight are both available.
Q: How do I confirm the correct part for my machine?
A: Send us your excavator model, pump model (SBS80 / SBS120 / SBS140) and the part name or photo — our technical team will confirm the correct item before you order.
Q: What warranty do you offer?
A: 6 months against manufacturing and material defects, with replacement support for confirmed quality issues.