What is a 490 engine
Among the hot topics in the past 10 days, discussions on the automotive and mechanical engineering fields have been particularly active, with the 490 engine becoming one of the focuses due to its wide range of applications and efficient performance. This article will introduce in detail the definition, characteristics, application fields and related technical parameters of the 490 engine to help readers fully understand this power unit.
1. Definition of 490 engine

The 490 engine is a four-cylinder diesel engine, and the "490" in its name usually represents a model with a cylinder diameter of 90 mm. This engine is known for its compact structure, powerful power and fuel economy, and is widely used in light trucks, agricultural machinery and small power generation equipment.
2. Characteristics of 490 engine
The 490 engine has the following salient features:
1.High efficiency and energy saving: Adopting advanced combustion technology, low fuel consumption rate and excellent economy.
2.High reliability: Simple structural design, easy maintenance and long service life.
3.Adaptable: Can operate stably in harsh environments and is suitable for a variety of working conditions.
4.Environmental protection standards: Comply with national emission standards, and some models meet National VI requirements.
3. Technical parameters of 490 engine
The following are the main technical parameters of the 490 engine (taking a mainstream model as an example):
| Parameter name | numerical value |
|---|---|
| Engine type | In-line four-cylinder, water-cooled diesel engine |
| Displacement(L) | 2.54 |
| Bore size × stroke (mm) | 90×100 |
| Rated power (kW/rpm) | 45/2400 |
| Maximum torque (N·m/rpm) | 180/1600-2000 |
| Fuel consumption rate (g/kWh) | ≤220 |
| Emission standards | National IV/National V (optional) |
4. Application fields of 490 engine
With its excellent performance, the 490 engine is widely used in the following scenarios:
1.light commercial vehicle: Such as small trucks, pickup trucks, etc., to provide stable power.
2.agricultural machinery: Including tractors, harvesters, etc., adapted to the complex working environment in rural areas.
3.Construction machinery: Such as forklifts, small loaders, etc., to meet the needs of low speed and high torque.
4.Generator set: As a backup power source or the power core of a mobile power station.
5. Market status and trends of 490 engines
According to recent industry data analysis, the 490 engine occupies an important share in the small and medium-sized power equipment market. As environmental protection requirements increase, manufacturers are gradually introducing upgraded versions of electronically controlled high-voltage common rail, exhaust gas recirculation (EGR) and other technologies, which may extend to hybrid power in the future.
6. Frequently Asked Questions
Q: What is the difference between the 490 engine and the 495 engine?
A: The main difference is the bore size (the bore of the 495 engine is 95mm). The 495 engine has greater power and torque, but the volume and weight also increase accordingly.
Q: How to maintain the 490 engine?
A: It is necessary to replace the engine oil and filter regularly, check the cooling system, avoid long-term overload operation, and perform maintenance strictly according to the instructions.
Through the above content, I believe you have a comprehensive understanding of the 490 engine. For more detailed technical information, it is recommended to consult a professional manufacturer or dealer.
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