Tatan Doosan DH215-9 QSB6.7 Diesel Engine Assembly 4089758 for Doosan DH215-9 DX225 Excavator

Direct Answer for Fleet Owners & Workshops: The K3V112DT 401-00055 Hydraulic Pump Assembly turnkey unit by Tatan is engineered specifically for 21-22 ton class Doosan DH215-9 / DX225 / DH220-9 / DH225-9 excavators. Fully dressed with dual 112 cc/rev rotary groups, factory-calibrated negative flow control (NFC) regulators, pilot charge gear pump, and bi-metal valve plates, it bolts directly onto your Cummins QSB6.7 / 6BT5.9 flywheel housing and main control valve hard lines with zero field alterations, completely eliminating hot oil cycle slowdown and engine stall under heavy 1.1 m³ bucket digging.

Need Pump Regulator Verification & Direct Pricing for Doosan DH215-9 / DX225?

Contact Senior Specialist Gavin for free machine nameplate double-check & freight quote:

Why Fleet Owners Choose Tatan Over Local Overhauls:

  • 100% Turnkey Complete Assembly: Delivered as a complete K3V112DT 401-00055 Hydraulic Pump Assembly equipped with dual 112 cc rotary cylinder blocks, swashplates, charge gear pump, and pilot flow regulators.
  • Restores 34.3 MPa High-Pressure Output: Precision-lapped valve plates eliminate internal bypass, recovering lost bucket curl and boom raise breakout force on 22-ton attachments.
  • Anti-Cavitation Alloy Cylinder Blocks: Forged high-density alloy castings resist micro-pitting and stop cylinder barrel thermal scoring in high-ambient job sites.
  • 100% Direct Plug-and-Play for DH215-9 & DX225: Direct match for Cummins QSB6.7 flywheel housing spigots, suction manifold diameters, and pilot control piping ports.
  • Computerized Flow Bench Certified: Every unit undergoes 100% volumetric efficiency and high-pressure relief testing on automated dynamometers before boxing.
  • Backed by a 12-Month Warranty: Zero MOQ (1 Unit accepted) with reliable 3-7 day global air express or ocean cargo delivery from stock.

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.

⚠️ Technical Verification Notice: Doosan Dash-9 series excavators (DH215-9 vs. DH220-9 vs. DX225LC-9) may have slight variations in flywheel housing bolt patterns, ECU harness plugs, or oil pan sumps depending on specific engine platforms. Please send your original engine nameplate photo or serial number to Gavin for free verification before ordering.

Key Specifications for Doosan DH215-9 Diesel Engine Assembly

Product CategoryDiesel Engine AssemblyWarranty1 Year / 12 Months
Specific Engine ModelCummins QSB6.7 / 6BT5.9 EngineBrand NameTatan
Compatible EquipmentDoosan DH215-9 | DH220-9 | DX225OEM Part NumberDH215-9 / 4089758
Engine Displacement5.9L – 6.7 Liters (5880 – 6690 cc)Cylinder Arrangement6 Cylinders Inline (I-6) 4-Stroke
Horsepower & RPM110-132 kW (148-180 HP) @ 2000-2200Cooling SystemWater-Cooled / Liquid Cooled
Fuel Injection SystemHPCR Common Rail / Mechanical PumpAspiration TypeTurbocharged & Charge Air Intercooled
Machinery Test ReportProvided (100% Dyno Tested)Video Outgoing-InspectionProvided Before Shipping
Quality Status100% Brand New EnginePackagingExport 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:

Doosan DH215-9 Diesel Engine Assembly

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 ScenarioValue Delivered to Buyer
Doosan DH215-9 / DX225 Engine SwapComplete engine swap cuts machine repair downtime by up to 70% compared to internal rebuilding.
Excavator Overhaul WorkshopsEliminates tedious line-boring, sleeve honing, and crank fitting; saves mechanic labor hours.
Engine Distributors & StockistsHigh-demand 20-ton excavator engine ready for immediate resale to plant hire fleets and repair networks.
Rental Fleet MaintenanceExtends 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 SymptomTechnical Cause AnalysisTatan Factory-Grade Solution
1. Hard cold starting & dense white smokeFuel 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 loadTurbocharger 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-byScored 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 tankWater 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.

Doosan DH215-9 Diesel Engine Assembly Transport 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 Diesel Engine Assembly Quality Certificates

Doosan DH215-9 Engine FAQ & Related Categories

Q1: Is this Doosan DH215-9 Diesel Engine Assembly compatible with Doosan DH215-9, DH220-9, and DX225 excavators?
A: Yes. The Doosan DH215-9 engine assembly is engineered for Doosan DH215-9, DH220-9, DH225-9, and DX225LC-9 excavators. Send your original engine nameplate photo to Gavin for precise flywheel housing verification.
Q2: Does the engine assembly include the fuel injection pump and turbocharger?
A: Yes. Tatan complete engine assemblies come pre-assembled with fuel injection pump, fuel injectors, turbocharger, starter motor, and alternator ready for installation.
Q3: What are the primary OEM part numbers for the Doosan DH215-9 engine?
A: Common OEM reference numbers include DH215-9, 4089758, 3907262, and 65.01101-7020.

Get Wholesale Factory Quote for Doosan DH215-9 Diesel Engine Assembly

Looking for direct factory pricing, stock availability, or technical advice for Doosan DH215-9 engines? Contact senior engineer Gavin now!

💡 Fast Quote: Send your engine serial number or nameplate photos for a 100% accurate match within 10 minutes!

* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.

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