Description
HPV091 9119871 Hydraulic Pump Assembly Overview
The HPV091 9119871 Hydraulic Pump Assembly manufactured by Tatan is a tandem variable displacement axial piston pump engineered in accordance with international ISO fluid power standards. Belongs to our Hydraulic Pump Assembly classification and engineered specifically for Hitachi EX200-3, EX200LC-3, and EX200H-3 20-ton excavators, swapping to a new HPV091 9119871 Hydraulic Pump Assembly restores sluggish compound movements, eliminates hydraulic oil overheating, and stops engine bogging under high-pressure trenching.
Constructed with dual 91 cc/rev rotating groups, hardened bi-metal valve plates, and factory-calibrated negative flow control (NFC) regulators, this complete unit ensures balanced flow division across dual hydraulic circuits and delivers 100% direct mechanical alignment with the engine flywheel coupling.
Key Attributes & Parameters for HPV091 9119871 Hydraulic Pump Assembly
| Product Category | Hydraulic Pump Assembly | Warranty | 1 Year / 12 Months |
| Specific Pump Model | HPV091 / HPV091EW Axial Piston Pump | Brand Name | Tatan |
| Compatible Equipment | Hitachi EX200-3 | EX200LC-3 Excavator | OEM Part Number | HPV091 / 9119871 / 9133006 |
| Rated Working Pressure | 32.4 MPa (324 Bar / 4700 PSI) | Control System | Negative Flow Control (NFC) System |
| Flow Displacement & RPM | 91 cc/rev x 2 Dual Flow @ 2000-2150 RPM | Input Drive Spline | Standard 13-Tooth Involute Spline |
| Machinery Test Report | Provided (100% Bench Flow Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Housing Material | High-Strength Cast Iron Pump Body | Place of Origin | Guangdong, China |
| Quality Status | 100% Brand New Hydraulic Pump | Packaging | Export Wooden Box Packaging |
Supported Machinery Brands & Hydraulic Pump Coverage
In addition to Hitachi, Tatan manufactures replacement complete hydraulic pumps, rotary groups, and regulators for leading machinery brands:
Application Scenarios & Buyer Value
When replacing worn hydraulic units with our HPV091 9119871 Hydraulic Pump Assembly, workshops and equipment contractors eliminate chronic performance drops:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Hitachi EX200-3 Field Pump Swap | Swapping to the HPV091 9119871 Hydraulic Pump Assembly cuts equipment overhaul downtime by up to 75% compared to trial-and-error field rebuilding. |
| Hydraulic Service Workshops | Avoids the high failure risk of reusing warped swashplate cradles or scored cylinder barrel casings. |
| Earthmoving Contractors | Restores swift simultaneous boom raising, bucket crowding, and swing rotation without engine stalling under heavy load. |
| Global Heavy Parts Stockists | Fully bench-tested, export-crated inventory ready for prompt international air express or container shipment. |
HPV091 9119871 Hydraulic Pump Assembly OEM Diagnostic Guide
Use this technical diagnostic guide to identify hydraulic pump faults on your Hitachi EX200-3 excavator:
| Hydraulic Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Digging speed slows down dramatically when oil heats up | Severe internal oil leakage across scored valve plates and worn piston shoes, dropping flow output and system pressure below 25 MPa. | Replace with a complete HPV091 9119871 Hydraulic Pump Assembly. |
| 2. Diesel engine bogs down or stalls when curling the bucket | Negative flow control (NFC) regulator spool stuck in maximum swashplate angle position, overloading the engine under relief pressure. | Inspect regulator pilot pressure signal (3.9 MPa) or swap to a pre-calibrated factory pump assembly. |
| 3. Loud whining noise & pump body pulsation under load | Pump cavitation caused by restricted suction strainer, aerated hydraulic oil, or damaged suction manifold O-ring seals. | Clean suction line, replace hydraulic return filters, bleed pump casing air, and check pump priming before restart. |
| 4. External oil leak from the pump front drive seal | High case-drain backpressure exceeding 0.2 MPa due to clogged case-drain filters, blowing out the front drive shaft oil seal. | Clear case-drain line restrictions, replace case filters, and install a brand new sealed pump assembly. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan hydraulic pump assembly is coated with anti-rust fluid, capped with steel threaded plugs, sealed in heavy waterproof barrier film, and bolted inside an export-grade wooden crate.
✈️ Express Air Courier
Partnered with DHL, FedEx, UPS, and TNT for 3-7 day express door-to-door delivery worldwide.
🚢 Sea Cargo Freight
LCL and FCL ocean container shipping for heavy hydraulic pumps and bulk stock orders.
📦 Export Wooden Cases
Fumigated solid wooden boxes with custom high-density foam inserts to prevent shipping shock.
Quality Control & International Certificates
Tatan hydraulic components are manufactured under ISO 9001 certified quality control systems and strictly comply with CE industrial machinery safety directives.
HPV091 9119871 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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