EURO IV 6DF4-24E4

The 6DF4-24E4 features a sophisticated six-cylinder in-line configuration with direct injection technology, delivering optimal combustion efficiency across all operating conditions. The engine’s 107mm bore and 125mm stroke create a displacement of 6.74 litres, perfectly balanced for both power delivery and fuel consumption.

Each cylinder incorporates two valves per cylinder in a proven design that maximises airflow whilst maintaining mechanical simplicity. The robust construction ensures consistent performance even under demanding operational conditions typical of commercial vehicle applications.

Advanced Turbocharging System

The engine employs a turbocharged and intercooling system that significantly enhances power output whilst maintaining fuel efficiency. This forced induction system allows the engine to deliver its impressive 180kW (241hp) at 2,300rpm, providing ample power for challenging driving conditions including steep gradients and heavy loads.

The intercooling technology reduces intake air temperature, increasing air density and improving combustion efficiency. This results in better fuel economy and reduced emissions without compromising performance.

Power and Torque Characteristics

With 180kW net power at 2,300rpm and a substantial 940Nm of maximum torque available between 1,300-1,700rpm, the 6DF4-24E4 delivers exceptional pulling power across a broad rev range. This torque band provides excellent drivability for operators, reducing the need for frequent gear changes whilst maintaining momentum during challenging driving conditions.

The wide torque band is particularly beneficial for heavy-duty applications where consistent power delivery is essential for productivity and operational efficiency.

Environmental Compliance and Emission Control

EURO IV Standards Compliance

The 6DF4-24E4 meets stringent EURO IV emission standards, representing a significant achievement in clean diesel technology. Euro IV standards focus particularly on reducing emissions from diesel vehicles, especially particulate matter (PM) and nitrogen oxides (NOx), with diesel vehicles required to emit no more than 0.25g/km of NOx gases.

Selective Catalytic Reduction (SCR) Technology

The engine incorporates SCR (Selective Catalytic Reduction) technology as its primary emission control strategy. SCR technology uses a liquid reductant (typically urea in water solution) injected through a catalyst to convert nitrogen oxides into harmless water and nitrogen. This advanced system allows the engine to maintain excellent fuel efficiency whilst meeting demanding emission requirements.

The SCR-only strategy enables engines to be calibrated for low PM emission levels whilst effectively controlling NOx emissions through the aftertreatment system, resulting in cleaner operation without compromising performance or reliability.

Fuel Efficiency and Operating Costs

At 202g/kWh fuel consumption, the 6DF4-24E4 demonstrates exceptional efficiency for its power class. This translates directly into reduced operating costs for fleet operators, making it an economically attractive choice for commercial applications.

The engine’s low smoke emissions of ≤0.5m⁻¹ further demonstrate its clean combustion characteristics, whilst the ≤98dB(A) noise level ensures compliance with noise regulations in urban environments.

Physical Specifications and Installation

Compact Design

Despite its impressive power output, the 6DF4-24E4 maintains compact external dimensions of 1,330mm × 970mm × 1,005mm (L×W×H), facilitating installation in various vehicle platforms. The 700kg net mass (excluding aftertreatment system) represents excellent power-to-weight ratio for its class.

Manufacturing Quality

Built at FAW Jiefang Automotive Co., Ltd. Wuxi Diesel Engine Works, the engine benefits from over seven decades of diesel engine manufacturing expertise. The facility covers 870,000 square metres with over 5,400 employees, representing FAW’s commitment to quality and innovation in commercial vehicle powertrains.

FAWDE has established comprehensive R&D capabilities with “five mechanisms for technological innovation” and integrated procurement, market, quality, cost, and process systems, ensuring consistent quality and continuous improvement in engine technology.

Applications and Market Position

The 6DF4-24E4 is ideally suited for:

• Medium to heavy-duty commercial vehicles
• Construction and earthmoving equipment
• Agricultural machinery
• Industrial power generation
• Marine applications

Its combination of robust construction, efficient operation, and environmental compliance makes it particularly attractive for operators requiring reliable power with minimal environmental impact.

Conclusion

The EURO IV 6DF4-24E4 represents the culmination of FAW Jiefang’s diesel engine development expertise. By combining proven mechanical design with advanced emission control technology, it delivers the reliability and efficiency that commercial operators demand whilst meeting increasingly stringent environmental standards.

For fleet operators seeking a dependable, fuel-efficient powerplant that combines excellent performance with environmental responsibility, the 6DF4-24E4 offers an compelling solution backed by FAW Jiefang’s reputation for engineering excellence and global support infrastructure.