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4TNV98
Yanmar

The Yanmar 4TNV98 is a robust, water-cooled diesel engine engineered to deliver exceptional power density, superior fuel efficiency, and legendary reliability for demanding industrial, construction, and agricultural applications. As part of the advanced 4TNV series, this 4-cylinder engine combines modern clean-engine technology with Yanmar's proven durability, offering a high-performance power solution with a low total cost of ownership.
| Feature | Specification / Description |
|---|---|
| Engine Model | Yanmar 4TNV98 |
| Configuration | In-line 4 Cylinder, 4-Stroke, Water-Cooled Diesel |
| Displacement | ~4.0 Liters (Representative for this power class) |
| Aspiration | Turbocharged & Intercooled |
| Fuel System | High-Pressure Common Rail with Electronic Control |
| Rated Power | High power output within the series range |
| Emissions Compliance | EPA Tier 4 Final / EU Stage V (Platform Standard) |
| Key Design | High strength-to-weight ratio, Low NVH, Compact |
The 4TNV98 is engineered as a versatile and dependable prime mover for medium to heavy-duty equipment requiring reliable, continuous power.
Construction Machinery: An ideal power source for mid-sized excavators, wheel loaders, compactors, and mobile crushers.
Agricultural Equipment: Powers large tractors, combine harvesters, telehandlers, and high-capacity irrigation systems.
Power Generation: Serves as a robust driver for prime and standby generator sets.
Industrial & Material Handling: Used in industrial pumps, air compressors, and large forklifts.
1. Advanced High-Pressure Common Rail Fuel System
The engine features a state-of-the-art high-pressure common rail fuel system with electronic control. This technology enables ultra-precise, multiple fuel injections per cycle, optimizing combustion for maximum fuel efficiency, significant noise reduction, lower emissions, and responsive power delivery.
2. Efficient Turbocharging & Intercooling
The integrated turbocharger with intercooler forces a dense charge of cool air into the cylinders. This dramatically improves combustion efficiency and power density, allowing the engine to deliver strong performance from a compact package while managing thermal loads for enhanced durability.
3. Durable Construction for Long Service Life
Built with a high-strength cylinder block and premium internal components, the 4TNV98 is designed to withstand rigorous, continuous-duty cycles. Its robust design ensures high reliability and supports extended maintenance intervals, contributing to a lower total cost of ownership.

The Yanmar 4TNV98 is a robust, water-cooled diesel engine engineered to deliver exceptional power density, superior fuel efficiency, and legendary reliability for demanding industrial, construction, and agricultural applications. As part of the advanced 4TNV series, this 4-cylinder engine combines modern clean-engine technology with Yanmar's proven durability, offering a high-performance power solution with a low total cost of ownership.
| Feature | Specification / Description |
|---|---|
| Engine Model | Yanmar 4TNV98 |
| Configuration | In-line 4 Cylinder, 4-Stroke, Water-Cooled Diesel |
| Displacement | ~4.0 Liters (Representative for this power class) |
| Aspiration | Turbocharged & Intercooled |
| Fuel System | High-Pressure Common Rail with Electronic Control |
| Rated Power | High power output within the series range |
| Emissions Compliance | EPA Tier 4 Final / EU Stage V (Platform Standard) |
| Key Design | High strength-to-weight ratio, Low NVH, Compact |
The 4TNV98 is engineered as a versatile and dependable prime mover for medium to heavy-duty equipment requiring reliable, continuous power.
Construction Machinery: An ideal power source for mid-sized excavators, wheel loaders, compactors, and mobile crushers.
Agricultural Equipment: Powers large tractors, combine harvesters, telehandlers, and high-capacity irrigation systems.
Power Generation: Serves as a robust driver for prime and standby generator sets.
Industrial & Material Handling: Used in industrial pumps, air compressors, and large forklifts.
1. Advanced High-Pressure Common Rail Fuel System
The engine features a state-of-the-art high-pressure common rail fuel system with electronic control. This technology enables ultra-precise, multiple fuel injections per cycle, optimizing combustion for maximum fuel efficiency, significant noise reduction, lower emissions, and responsive power delivery.
2. Efficient Turbocharging & Intercooling
The integrated turbocharger with intercooler forces a dense charge of cool air into the cylinders. This dramatically improves combustion efficiency and power density, allowing the engine to deliver strong performance from a compact package while managing thermal loads for enhanced durability.
3. Durable Construction for Long Service Life
Built with a high-strength cylinder block and premium internal components, the 4TNV98 is designed to withstand rigorous, continuous-duty cycles. Its robust design ensures high reliability and supports extended maintenance intervals, contributing to a lower total cost of ownership.
