Yanmar 4TNV98CT-VSI 3.77L Diesel Engine – Turbocharged, Common Rail, Stage V
The Yanmar 4TNV98CT-VSI is a powerful, turbocharged, common-rail diesel engine from Yanmar’s renowned TNV Series. Designed for heavy-duty applications, it delivers strong output, excellent fuel economy, and meets the latest global emission standards (EPA Tier 4 Final / EU Stage V). With advanced electronic control and compact engineering, this engine is ideal for modern industrial, construction, and agricultural equipment.
Engine Specifications
| Attribute | Value |
| Engine Model | 4TNV98CT-VSI |
| Type | 4-stroke, liquid-cooled, in-line 4-cylinder, turbocharged, common-rail diesel engine |
| Displacement | 3.769L |
| Bore x Stroke | 98 mm x 120 mm |
| Aspiration | Turbocharger |
| Rated Power | 86–86.5 kW (115–116 hp) at 2200 rpm |
| Max. Torque | 500 Nm at 1500–1600 rpm |
| Fuel Type | Diesel |
| Cooling System | Liquid-cooled |
| Combustion System | Common-rail direct injection |
| Starting System | Electric starter |
| Fuel System | Mechanical |
Key Features
- Turbocharged + Common Rail (CRS) – High-pressure fuel injection ensures maximum power, torque, and fuel efficiency.
- Emission Compliance – Fully compliant with EPA Tier 4 Final and EU Stage V.
- Electronic Control System – Optimizes combustion for performance and reduced emissions.
- Compact & Versatile – High output in a compact design, making it easy to integrate into machinery.
- Durable & Reliable – Engineered for continuous, heavy-duty operation with long service life.
- Low Noise & Vibration – Smooth operation for improved operator comfort.
- Easy Maintenance – Service-friendly layout with accessible components.
Common Applications
-
Agriculture: Tractors, harvesters, irrigation pumps, sprayers, utility farm vehicles
-
Construction: Mini excavators, loaders, skid steer loaders, telehandlers, compact construction machinery
-
Industrial Equipment: Generators, air compressors, water pumps, welding machines, drilling rigs
-
Material Handling: Forklifts, cranes, utility vehicles, small transport equipment
-
Marine & Utility: Small workboats, auxiliary marine engines, and utility machinery requiring reliable compact power
Product Images
Frequently Asked Questions
Q1: What is your main products?
We specialize in excavator engine spare parts, including main cylinder blocks, cylinder heads, crankshafts, engine assemblies, pistons, cylinder liners, piston rings, camshafts, connecting rods, oil pumps, water pumps, valve series products, and virtually all components of the entire engine.
Q2: If I only know the excavator model, but can't offer parts number, what should I do?
If possible, you can send us pictures of old products, name plate or the size for reference.
Q3: Can you accept sample order?
Yes, we can supply samples if we have ready parts in stock, but customers need to pay the sample cost and courier charges.
Q4: Do you test all your goods before delivery?
Yes, we perform 100% testing before delivery.
Q5: What should I do if there's something wrong with the items?
Our products undergo professional testing and have very stable quality. If you encounter any issues, please contact us. We have a professional after-sales team to help resolve any problems.