Yunnei
Yunnei DEF20CFB4
DEF20 Series
The Yunnei DEF20CFB4 is a 2-litre inline-4 diesel engine for generator sets, rated at 41 kVA / 33 kWe prime power at 1,800 RPM (60 Hz). It is a liquid-cooled engine built in China. It meets Euro Stage V emissions standards.
- Prime Power · 60 Hz
- 41 kVA
- Electrical Output
- 33 kWe
- Cylinders
- L4
- Displacement
- 2 L
- Rated Speed
- 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 36.7 | 33 | 41.3 |
Technical Specifications
| Brand | Yunnei |
| Model | DEF20CFB4 |
| Series | DEF20 Series |
| Configuration | L4 |
| Cylinders | 4 |
| Displacement | 2 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Euro Stage V |
| Country of Origin | China |
Frequently asked questions
What is the power output of the Yunnei DEF20CFB4?
The Yunnei DEF20CFB4 is rated at 41 kVA prime at 60 Hz (1,800 rpm).
Does the DEF20CFB4 run at 50 Hz or 60 Hz?
The Yunnei DEF20CFB4 is rated for 60 Hz (1,800 rpm).
What fuel does the Yunnei DEF20CFB4 use?
The Yunnei DEF20CFB4 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the DEF20CFB4?
The Yunnei DEF20CFB4 is an inline-4 (4-cylinder) engine with a displacement of 2 L.
What emissions standard does the DEF20CFB4 meet?
The Yunnei DEF20CFB4 is certified to Euro Stage V emissions standards.
Is the Yunnei DEF20CFB4 still in production?
Yes — the Yunnei DEF20CFB4 is a current production model.
Is a datasheet available for the DEF20CFB4?
Yes — an official Yunnei datasheet for the Yunnei DEF20CFB4 can be downloaded from this page.
Related Engines
Compare Yunnei DEF20CFB4
Reference
- Canonical page
- /engines/yunnei-def20cfb4
- Last database update
- 2026-05-29
- Manufacturer files
- 1 datasheet linked
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