Description
Doosan DH60-7 Hydraulic Main Pump Assembly Overview
The Doosan DH60-7 Hydraulic Main Pump Assembly (OEM Part Numbers: 401-00021A, 401-00021, 2270-9008A, 31Q2-10010) manufactured by Tatan is a high-pressure AP2D28 variable displacement dual axial piston pump belonging to our Hydraulic Pump Assembly classification. Engineered specifically for Doosan DH60-7, DH60-7 GOLD, DX60, and cross-interchangeable with Hyundai R60-7 6-ton mini excavators, replacing your worn hydraulic pump with a Tatan complete DH60-7 main pump assembly eliminates digging power fade, slow attachment cycle times, and severe oil leakage instantly.
Built strictly according to original OEM specifications, this hydraulic pump assembly features precision-machined piston shoes, bimetallic valve plates, and an integrated gear pilot pump, ensuring 100% direct bolt-on fitment with Yanmar 4TNV98 / 4TNV94 engine flywheel couplings and main control valve hoses.
Key Attributes & Parameters for Doosan DH60-7 Hydraulic Main Pump Assembly
| Product Category | Hydraulic Pump Assembly | Warranty | 1 Year / 12 Months |
| Specific Pump Model | AP2D28 / PSVD2-21E Dual Piston Pump | Brand Name | Tatan |
| Compatible Equipment | Doosan DH60-7 | DX60 | Hyundai R60-7 | OEM Part Number | 401-00021A / 2270-9008A |
| Max Relief Pressure | 24.5 – 28.0 MPa (245 – 280 bar) | Flow Capacity | 2 x 28.5 cm³/rev (2 x 62 L/min) |
| Drive Shaft Spec | 13-Teeth Spline Shaft (13T / CW) | Control Type | Hydraulic Negative Flow Control |
| Machinery Test Report | Provided (100% Bench Flow Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Quality Status | 100% Brand New Assembly | Packaging | Export Wooden Box Packaging |
Supported Machinery Brands & Hydraulic Pump Coverage
In addition to Doosan & Hyundai, Tatan manufactures replacement main hydraulic pumps and rotary spare parts for leading excavator brands:
Application Scenarios & Buyer Value
When upgrading or replacing your 6-ton excavator hydraulic system with our Doosan DH60-7 Hydraulic Main Pump Assembly, buyers achieve maximum operational performance and speed:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Doosan DH60-7 / DX60 Main Pump Replacement | Complete pump swap cuts machine repair downtime and restores full 24.5 MPa digging attachment speed. |
| Hydraulic Repair Workshops | Eliminates tedious cylinder block lapping, piston fitting, and bench testing; saves mechanic labor hours. |
| Excavator Parts Distributors & Stockists | High-demand 6-ton excavator hydraulic pump with cross fitment for Doosan and Hyundai excavators. |
| Rental Fleet Maintenance | Extends 6-ton excavator working lifespan and eliminates hydraulic power drops under heavy load. |
Doosan DH60-7 Hydraulic Main Pump Assembly OEM Diagnostic Guide
Use this OEM manual hydraulic diagnostic guide to troubleshoot operational main pump symptoms on your Doosan DH60-7:
| Hydraulic Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Slow digging speed & weak travel under high oil temperature | Bimetallic valve plate or cylinder block surface scoring causing internal high-pressure oil bypass (>24.5 MPa drop). | Install Tatan new DH60-7 hydraulic main pump assembly; flush hydraulic system & replace oil filter. |
| 2. Engine stalling / Lugging down when pulling hydraulic levers | Hydraulic pump regulator spool mechanical sticking or torque spring fatigue, overloading the Yanmar engine. | Disassemble & clean pump regulator; adjust torque control spring or replace complete main pump. |
| 3. Loud whining noise & oil foaming in hydraulic tank | Air ingress through suction flange O-rings or cracked suction rubber hose causing pump cavitation. | Reseal suction intake with HNBR seals; check oil level and bleed trapped air from pump casing. |
| 4. Front shaft oil seal blowout into flywheel housing | Case drain line restriction or internal bypass wear causing drain pressure to exceed 0.2 MPa. | Unclog case drain line, replace front shaft seal with high-pressure NOK seal, and test casing relief pressure. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan Doosan DH60-7 main hydraulic pump undergoes anti-rust oiling, waterproof plastic sealing, and solid export wooden box packaging.
✈️ Express Air Courier
Partnered with DHL, FedEx, UPS, and TNT for express door-to-door delivery worldwide.
🚢 Sea Cargo Freight
LCL and FCL ocean container shipping for heavy hydraulic pumps and bulk orders.
📦 Export Wooden Cases
Fumigated solid wooden boxes with thick shockproof foam lining for maximum safety.
Quality Control & International Certificates
Tatan hydraulic pumps are manufactured under ISO 9001 quality management systems and strictly comply with CE safety standards.
Doosan DH60-7 Hydraulic Pump FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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