Nachi PVD-2B Series Main Hydraulic Pump Parts (PVD-2B-28 to PVD-2B-42)
100% interchangeable rotary group & spare parts engineered for Nachi PVD-2B series mini excavator main pumps, in-stock with OEM-grade quality.
- ✓100% Interchangeable
- ✓Durable & High-Wear Resistance
- ✓Large Stock & Fast Shipping
HYLINK supplies precision-engineered Nachi PVD-2B series hydraulic main pump parts and complete rotary group repair kits for compact and mini excavators. Every component is manufactured to original specifications, 100% interchangeable with genuine Nachi Fujikoshi parts, and fully tested before shipment — providing a reliable, cost-effective replacement solution for repair shops, distributors, and mini excavator fleet managers worldwide.
Item | Details | |
Brand | HYLINK | |
Product Category | Mini Excavator Main Pump Spare Parts / Rotary Group / Overhaul Repair Kits | |
Compatible Brand | Replacement for Nachi (PVD-2B Series) — 100% Interchangeable | |
Available Models / Displacements | PVD-2B-28 / PVD-2B-32 / PVD-2B-34 / PVD-2B-36 / PVD-2B-40 / PVD-2B-42 | |
Applicable Machines | Kubota, Yanmar, Takeuchi, Kobelco, Sumitomo, and Caterpillar mini excavators (1.5 to 4.5 ton range) | |
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 | |
Product Overview
The Nachi PVD-2B series (PVD-2B-28, PVD-2B-32, PVD-2B-34, PVD-2B-36, PVD-2B-40, and PVD-2B-42) is the industry standard dual-piston main pump platform integrated into compact hydraulic mini excavators. Operating under continuous micro-vibration, high system pressure, and rapid load changes, internal rotary group components—such as the cylinder block, piston shoes, port plate, and swashplate support—endure intense mechanical wear, leading to slow tracking speeds, weak digging force, hydraulic oil overheating, or erratic boom movement.
HYLINK manufactures high-precision complete rotary groups and individual replacement components across all Nachi PVD-2B frame sizes. Engineered from high-strength forged steel and wear-resistant bronze alloys, each component undergoes precision CNC machining and CMM micron-level inspection. This enables repair shops and mechanics to execute targeted internal component rebuilds rather than replacing the costly complete pump housing, drastically cutting overhaul expenses and minimizing machine downtime.
Available Components
Below is the standard component list for Nachi PVD-2B series hydraulic main pumps (PVD-2B-28 through PVD-2B-42). Individual spare parts and complete overhaul repair kits are both available:
Item No. | Part Name | Qty. |
1 | Drive Shaft (Spline Shaft) | 1 |
2 | Cylinder Block | 1 |
3 | Thimble (Piston Rod) | 3 |
4 | Spherical Bushing (Ball Guide / Spherical Hinge) | 1 |
5 | Retainer Plate (Set Plate) | 1 |
6 | Piston Shoe (Slipper) | 10 |
7 | Piston (Plunger) | 10 |
8 | Valve Plate | 1 |
9 | Swashplate (Sway Plate) | 1 |
10 | Bearing Bush | 2 |
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.