Weichai
Weichai WP4D77E300NG
WP Series
The Weichai WP4D77E300NG is a 4.5-litre inline-4 natural gas engine for generator sets, rated at 86 kVA / 69 kWe standby power at 1,500 RPM (50 Hz). It is a liquid-cooled engine built in China.
- Standby Power · 50 Hz
- 86 kVA
- Electrical Output
- 69 kWe
- Cylinders
- L4
- Displacement
- 4.5 L
- Rated Speed
- 1,500 / 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 70 | 60 | 75 |
| Standby Power | 76.7 | 69 | 86.3 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 70 | 63 | 78.8 |
| Standby Power | 76.7 | 69 | 86.3 |
Technical Specifications
| Brand | Weichai |
| Model | WP4D77E300NG |
| Series | WP Series |
| Configuration | L4 |
| Cylinders | 4 |
| Displacement | 4.5 L |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | China |
Frequently asked questions
What is the power output of the Weichai WP4D77E300NG?
The Weichai WP4D77E300NG is rated at 86 kVA standby / 75 kVA prime at 50 Hz (1,500 rpm); and 86 kVA standby / 79 kVA prime at 60 Hz (1,800 rpm).
Does the WP4D77E300NG run at 50 Hz or 60 Hz?
The Weichai WP4D77E300NG is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Weichai WP4D77E300NG use?
The Weichai WP4D77E300NG is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the WP4D77E300NG?
The Weichai WP4D77E300NG is an inline-4 (4-cylinder) engine with a displacement of 4.5 L.
Is the Weichai WP4D77E300NG still in production?
Yes — the Weichai WP4D77E300NG is a current production model.
Is a datasheet available for the WP4D77E300NG?
Yes — an official Weichai datasheet for the Weichai WP4D77E300NG can be downloaded from this page.
Related Engines
Compare Weichai WP4D77E300NG
Reference
- Canonical page
- /engines/weichai-wp4d77e300ng
- Last database update
- 2026-06-08
- Manufacturer files
- 1 datasheet linked
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