Haval GW4C20B engine - Haval H9 model 21-22-23-24
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Product description
The GW4C20B engine is one of the most prominent 2.0-liter turbocharged gasoline engines with gas turbine direct injection (GDI/GDIT), developed and manufactured by Great Wall Motors (GWM) . This engine is an improved and updated version of the previous generation (GW4C20), designed to offer higher performance efficiency and compliance with advanced emissions standards.
First: Product description and overall performance
- Type: Four-cylinder gasoline internal combustion engine (Inline 4).
- Injection technology: Direct injection of fuel into the chamber (GDI) with a turbocharger.
- Primary uses: It is widely used to power SUVs, large family cars, and pickup trucks (light commercial vehicles) from the Great Wall, Haval, and TAC groups, such as:
- Haval H9 (both the improved first generation and second generation).
- Haval H5 (Third Generation).
- Great Wall Poer / Pao
- Categories within luxury brands belonging to the group such as WEY (e.g., VV6 and VV7).
Second: Detailed Technical Specifications
| The artistic element | Standard specifications |
| Engine capacity | 1,967 cc (2.0 liters) |
| Cylinder configuration | 4 cylinders arranged in a single row (I4) |
| Number of valves | 16 valves (DOHC - Double Overhead Camshaft) with Dual Variable Valve Timing (DVVT) system |
| Cylinder diameter x stroke | 82.5 mm × 92 mm (approximate based on motor family) |
| Compression ratio | 9.6:1 |
| Horsepower (Power Output) | It ranges from 190 to 227 horsepower (depending on the computer settings and programming for each car model, and often comes in versions of 190, 197, or 218 horsepower at 5500 rpm). |
| Torque | It ranges from 360 to 385 Newton-meters (often appearing at a cycle range of 3600 to 4000 revolutions per minute). |
| Emission standards | It meets advanced environmental standards up to Euro 6 (and in some versions the Chinese standard National VI). |
| Cooling system | Forced circulating water cooling with a precise thermostat |
| Timing system | Timing chain system characterized by long service life |
| Approximate weight | Approximately 180 kg (including basic accessories) |
Third: Recommended maintenance accessories and fluids
- Preferred fuel type: High-quality gasoline is preferred (not low octane, often RON 92 or higher according to the manufacturer's guide for each market).
- Engine oil capacity: approximately 5.5 liters .
- Recommended oil viscosity: 5W-30 or 0W-30 (conforms to manufacturer's recommended specifications and approvals).
- The engine contains balance shafts: to reduce vibrations and give the engine a noticeable smoothness and quietness during school driving or on highways.
- Match: Haval H9 model 21-22-23-24
