Description
4TNV98 Diesel Engine Assembly 129900-01330 Overview
The 4TNV98 Diesel Engine Assembly 129900-01330 manufactured by Tatan is a 3.319L 4-cylinder water-cooled engine belonging to our Diesel Engine Assembly classification. Engineered specifically for Doosan DX75, DX75-9, DX75-9C, and DH80-7 7-to-8 ton excavators and loaders, replacing your worn engine with a Tatan complete 4TNV98 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 mechanical PE fuel injection pump, starter motor, and alternator, ensuring 100% direct bolt-on fitment with hydraulic pump couplings and mounting brackets.
Key Attributes & Parameters for 4TNV98 Diesel Engine Assembly 129900-01330
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Engine Model | Yanmar 4TNV98 Diesel Engine | Brand Name | Tatan |
| Compatible Equipment | Doosan DX75 | DH80-7 Excavator | OEM Part Number | 129900-01330 / 4TNV98 |
| Engine Displacement | 3.319 Liters (3319 cc / 3.3L) | Cylinder Arrangement | 4 Cylinders Inline (I-4) 4-Stroke |
| Horsepower & RPM | 39-55 kW (53-74 HP) @ 2100-2400 | Cooling System | Water-Cooled / Liquid Cooled |
| Machinery Test Report | Provided (100% Dyno Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Aspiration Type | Naturally Aspirated / Turbocharged | Place of Origin | Guangdong, China |
| 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 7-ton excavator engine with our 4TNV98 Diesel Engine Assembly 129900-01330, buyers achieve maximum operational uptime and power efficiency:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Doosan DX75 Engine Replacement | 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 3.3L 7-ton excavator engine ready for immediate resale to plant hire fleets and repair networks. |
| Rental Fleet Maintenance | Extends 7-ton excavator working lifespan and restores full digging hydraulic torque under load. |
4TNV98 Diesel Engine Assembly 129900-01330 OEM Diagnostic Guide
Use this OEM manual diagnostic guide to troubleshoot operational engine symptoms on your Doosan 7-ton excavator:
| Engine Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard cold starting & dense white smoke | Mechanical PE fuel injection pump timing retarded or low compression (<2.8 MPa) in 4 cylinders due to piston ring wear. | Adjust 4TNV98 injection pump timing or replace with Tatan complete 4TNV98 engine assembly. |
| 2. Severe power loss & dense black smoke under digging load | Turbocharger wastegate failure leading to low boost (<1.1 bar) or fuel injection pump governor spring fatigue. | Inspect turbocharger boost pressure or swap to a Tatan factory pre-tested 4TNV98 complete engine. |
| 3. High engine oil consumption & heavy crankcase blow-by | Scored 3.3L cylinder liners, stuck oil rings, or valve stem seal wear allowing engine oil into combustion chambers. | Install Tatan new 4TNV98 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 4TNV98 complete engine assembly. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan 4TNV98 Diesel Engine Assembly 129900-01330 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.
4TNV98 Diesel Engine Assembly 129900-01330 FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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