Description
Doosan DH215-9 Diesel Engine Assembly Overview
The Doosan DH215-9 Diesel Engine Assembly (Cummins QSB6.7 / 6BT5.9, OEM Part Numbers: 4089758, 3907262, DH215-9, 65.01101-7020) manufactured by Tatan is a 6-cylinder turbocharged water-cooled engine belonging to our Diesel Engine Assembly classification. Engineered specifically for Doosan DH215-9, DH220-9, DH225-9, DX215-9, and DX225LC-9 20-to-22 ton excavators, replacing your worn engine with a Tatan complete DH215-9 assembly eliminates machine downtime, excessive blow-by, and severe hydraulic power loss instantly.
Built strictly according to original OEM specifications, this complete engine assembly comes pre-assembled with high-pressure fuel injection pump, fuel injectors, turbocharger, starter motor, and alternator, ensuring 100% direct bolt-on fitment with hydraulic pump couplings and mounting brackets. Every unit undergoes strict dynamometer testing before dispatch to guarantee zero defect delivery and immediate operational readiness on job sites.
Key Specifications for Doosan DH215-9 Diesel Engine Assembly
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Engine Model | Cummins QSB6.7 / 6BT5.9 Engine | Brand Name | Tatan |
| Compatible Equipment | Doosan DH215-9 | DH220-9 | DX225 | OEM Part Number | DH215-9 / 4089758 |
| Engine Displacement | 5.9L – 6.7 Liters (5880 – 6690 cc) | Cylinder Arrangement | 6 Cylinders Inline (I-6) 4-Stroke |
| Horsepower & RPM | 110-132 kW (148-180 HP) @ 2000-2200 | Cooling System | Water-Cooled / Liquid Cooled |
| Fuel Injection System | HPCR Common Rail / Mechanical Pump | Aspiration Type | Turbocharged & Charge Air Intercooled |
| Machinery Test Report | Provided (100% Dyno Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Quality Status | 100% Brand New Engine | Packaging | Export Wooden Box Packaging |
Supported Machinery Brands & Engine Parts Coverage
In addition to Doosan, Tatan manufactures replacement complete diesel engines and overhaul components for leading machinery brands:

Application Scenarios & Buyer Value
When upgrading or replacing your 20-ton excavator engine with our Doosan DH215-9 Diesel Engine Assembly, buyers achieve maximum operational uptime and power efficiency:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Doosan DH215-9 / DX225 Engine Swap | Complete engine swap cuts machine repair downtime by up to 70% compared to internal rebuilding. |
| Excavator Overhaul Workshops | Eliminates tedious line-boring, sleeve honing, and crank fitting; saves mechanic labor hours. |
| Engine Distributors & Stockists | High-demand 20-ton excavator engine ready for immediate resale to plant hire fleets and repair networks. |
| Rental Fleet Maintenance | Extends 20-ton excavator working lifespan and restores full digging hydraulic torque under load. |
Doosan DH215-9 Diesel Engine Assembly OEM Diagnostic Guide
Use this OEM manual diagnostic guide to troubleshoot operational engine symptoms on your Doosan 20-ton excavator:
| Engine Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard cold starting & dense white smoke | Fuel injection timing retarded, low fuel pressure, or low compression (<2.8 MPa) in 6 cylinders due to piston ring wear. | Adjust injection timing or replace with Tatan complete DH215-9 engine assembly. |
| 2. Severe power loss under heavy digging load | Turbocharger wastegate failure leading to low boost (<1.2 bar) or clogged fuel injectors. | Inspect turbocharger boost pressure or swap to a Tatan factory pre-tested DH215-9 engine assembly. |
| 3. High engine oil consumption & heavy crankcase blow-by | Scored cylinder liners, stuck oil rings, or valve stem seal wear allowing engine oil into combustion chambers. | Install Tatan new DH215-9 complete engine; flush engine oil gallery and replace oil filter. |
| 4. Engine overheating & coolant surge into expansion tank | Water pump impeller erosion, clogged radiator core, or cylinder head gasket leaking combustion gas into cooling jacket. | Replace thermostat (82°C), flush cooling system, or swap to a new Doosan DH215-9 complete engine assembly. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan Doosan DH215-9 engine assembly 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 engine assemblies and bulk orders.
📦 Export Wooden Cases
Fumigated solid wooden boxes with thick shockproof foam lining for maximum safety.
Quality Control & International Certificates
Tatan diesel engines are manufactured under ISO 9001 quality management systems and strictly comply with CE safety standards.

Doosan DH215-9 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.









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