The 2.0-liter Great Wall GW4D20T diesel engine has been produced by the concern since 2017 and is installed on a restyled modification of the popular Haval H9 SUV. Such a power unit is essentially a seriously upgraded version of the GW4D20 diesel engine.
GW4D family: GW4D20, GW4D20B, GW4D20D, GW4D20T, GW4D20M, GW4D24.
Specifications
| Production years | since 2017 |
| Displacement, cc | 1996 |
| Fuel system | Common Rail |
| Power output, hp | 190 |
| Torque output, Nm | 420 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 83.1 |
| Piston stroke, mm | 92 |
| Compression ratio | 16.0 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | BorgWarner R2S |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.5 |
| Fuel type | diesel |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Haval H9 2020) — city — highway — combined |
10.5 7.0 8.4 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 210 (with attachments) |
The engine was installed on:
- Haval H9 I since 2017.
Disadvantages of the Great Wall GW4D20T engine
- At the moment, the engine has proven itself well and rarely worries owners;
- Delphi fuel equipment does not tolerate bad fuel and it is better not to save on it;
- In the service station, the weak points of this motor include a booster pump and nozzles;
- There are complaints about contamination of the intake manifold, EGR valve and diesel particulate filter.
Frequently asked questions about the Great Wall GW4D20T
How much power does the Great Wall GW4D20T make?
The Great Wall GW4D20T develops 190 hp and 420 Nm of torque.
How much oil does the Great Wall GW4D20T take and which one?
Engine oil capacity: 5.5 liters. Recommended oil: 5W-30.
Does the Great Wall GW4D20T have a timing belt or chain?
The Great Wall GW4D20T uses a timing belt.
Is the Great Wall GW4D20T turbocharged?
Yes, the Great Wall GW4D20T is turbocharged (BorgWarner R2S).
Does the Great Wall GW4D20T need valve clearance adjustment?
No, the Great Wall GW4D20T has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Great Wall GW4D20T last?
The typical lifespan of the Great Wall GW4D20T is ~250 000 km with proper maintenance.
What is the fuel consumption of the Great Wall GW4D20T?
Haval H9 2020: city 10.5, highway 7.0, combined 8.4 L/100 km.
What cars was the Great Wall GW4D20T installed on?
Haval H9 I since 2017.
What are the common problems of the Great Wall GW4D20T?
At the moment, the engine has proven itself well and rarely worries owners. Delphi fuel equipment does not tolerate bad fuel and it is better not to save on it. All known problems.





