Description
AP2D18 2401-9293 Hydraulic Pump Assembly Overview
The AP2D18 2401-9293 Hydraulic Pump assembly manufactured by Tatan is a heavy-duty Uchida Rexroth series axial piston double pump belonging to our Hydraulic Pump Assembly classification. Engineered specifically for Doosan Daewoo DH35Z, DX35Z, and Solar 035 3.5-ton zero-tail mini excavators, replacing your worn main pump with a Tatan complete pump assembly restores original 28.0 MPa working pressure and hydraulic flow capacity instantly.
Built strictly according to original OEM specifications, this AP2D18 hydraulic main pump features 1:1 mounting flange dimensions and a spline shaft that couples directly to Yanmar 3TNV88 engine flywheels without hose or regulator modifications.
Key Attributes & Parameters for AP2D18 2401-9293 Hydraulic Pump
| Product Category | Hydraulic Pump Assembly | Warranty | 1 Year / 12 Months |
| Specific Pump Model | Uchida Rexroth AP2D18 / AP2D18LV Pump | Brand Name | Tatan |
| Compatible Equipment | Doosan DH35Z | DX35Z Mini Excavator | OEM Part Number | 2401-9293 / AP2D18 |
| Matched Engine Series | Yanmar 3TNV88 / 3TNE88 Engine | Place of Origin | Guangdong, China |
| Max Relief Pressure | 28.0 MPa (280 bar / 4060 PSI) | Rated Flow Output | 2 x 36 L/min + Gear Pilot Pump |
| Drive Shaft Spec | 10-Teeth Spline (10T / CW) | Control Mechanism | Negative Flow & Total Power Control |
| Machinery Test Report | Provided (100% Bench Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Quality Status | 100% Brand New with NOK Seals | Packaging | Export Wooden Box Packaging |
Supported Machinery Brands & Hydraulic Parts Coverage
In addition to Doosan, Tatan manufactures replacement main hydraulic pumps and components for major excavator brands:
Application Scenarios & Buyer Value
When upgrading or replacing your mini excavator hydraulic system with our AP2D18 2401-9293 Hydraulic Pump, buyers achieve maximum operational uptime and power efficiency:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Doosan DH35Z Main Pump Replacement | 1:1 direct bolt-on replacement eliminates machine downtime and restores original digging speed. |
| Hydraulic Repair Workshops | Replaces tedious internal component rebuilding; reduces labor hours and eliminates aftermarket warranty risks. |
| Parts Dealers & Stockists | High-demand replacement pump ready for immediate resale to contractors and plant hire companies. |
| Rental Fleet Maintenance | Cost-effective replacement option extending total Doosan 3.5-ton mini excavator service lifecycle. |
AP2D18 2401-9293 Hydraulic Pump OEM Diagnostic Guide
Use this OEM manual hydraulic diagnostic guide to troubleshoot operational symptoms on your Doosan DH35Z mini excavator:
| Hydraulic Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Slow boom/arm operation & weak travel under high oil temp | Bimetallic valve plate or cylinder block surface scoring causing high-pressure internal oil bypass (>28.0 MPa drop). | Install Tatan AP2D18 complete hydraulic main pump assembly; flush tank lines and replace 10μm oil return filter. |
| 2. Engine stalling / Lugging down when pulling hydraulic pilot levers | Negative flow control regulator spool sticking or torque spring fatigue, overloading the Yanmar 3TNV88 engine. | Disassemble and clean pump regulator; lap spool clearance to 0.005mm tolerance or install a new complete pump assembly. |
| 3. Loud cavitation noise & oil foaming in hydraulic reservoir | Air ingress through suction flange O-rings or cracked suction rubber hose causing vacuum cavitation. | Reseal suction intake with high-temp HNBR O-rings; check hydraulic oil level and bleed air from pump casing. |
| 4. Front shaft oil seal blowout into engine flywheel housing | Casing drain line blockage or internal bypass wear causing drain pressure to exceed 0.2 MPa. | Clear case drain return lines, 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 AP2D18 2401-9293 hydraulic main 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 pump assemblies 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.
AP2D18 2401-9293 Hydraulic Pump FAQ & Related Categories
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* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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