The 2.0-liter Great Wall GW4C20B turbo engine has been assembled at the concern’s factory since 2019 and installed on the Chinese version of the Poer pickup truck, and from 2021 on Haval H9 SUVs. Thanks to the presence of a particulate filter, this gasoline engine complies with Euro 6 environmental standards.
GW4C20 family: GW4C20, GW4C20A, GW4C20B, GW4C20NT.
Specifications
| Production years | since 2019 |
| Displacement, cc | 1967 |
| Fuel system | direct injection |
| Power output, hp | 218 |
| Torque output, Nm | 380 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 82.5 |
| Piston stroke, mm | 92 |
| Compression ratio | 9.6 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on both shafts |
| Turbocharging | yes |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.5 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Haval H9 2021) — city — highway — combined |
12.6 9.4 10.3 |
| Engine lifespan, km | ~230 000 |
| Weight, kg | 180 (with attachments) |
The engine was installed on:
- Great Wall Pao since 2019;
- Haval H9 I since 2021.
Disadvantages of the Great Wall GW4C20B engine
- At this point in time, no serious complaints have been found about this engine.
- All units with direct fuel injection suffer from deposits on intake valves.
- On motors of the series, there is often a drop in power due to burst pipes.
- An interesting resource of the particulate filter, uncharacteristic for Chinese gasoline engines.
Frequently asked questions about the Great Wall GW4C20B
How much power does the Great Wall GW4C20B make?
The Great Wall GW4C20B develops 218 hp and 380 Nm of torque.
How much oil does the Great Wall GW4C20B take and which one?
Engine oil capacity: 5.5 liters. Recommended oil: 5W-30.
Does the Great Wall GW4C20B have a timing belt or chain?
The Great Wall GW4C20B uses a timing chain.
Is the Great Wall GW4C20B turbocharged?
Yes, the Great Wall GW4C20B is turbocharged.
Does the Great Wall GW4C20B need valve clearance adjustment?
No, the Great Wall GW4C20B has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Great Wall GW4C20B last?
The typical lifespan of the Great Wall GW4C20B is ~230 000 km with proper maintenance.
What is the fuel consumption of the Great Wall GW4C20B?
Haval H9 2021: city 12.6, highway 9.4, combined 10.3 L/100 km.
What cars was the Great Wall GW4C20B installed on?
Great Wall Pao since 2019; Haval H9 I since 2021.
What are the common problems of the Great Wall GW4C20B?
At this point in time, no serious complaints have been found about this engine. All units with direct fuel injection suffer from deposits on intake valves. All known problems.





