With exceptional performance, light weight, low operating costs, and the reliability and durability expected from Cummins, the ISF 3.8 is ideal for light commercial vehicles. The ISF 3.8 is the lightest and most powerful engine in its class and is the ideal choice for weight-sensitive and space-limited installations over 3.5 tonnes GVW.
Modular engine design allows easy access and one-way service, which reduces overall operating costs. The high temperature capability at the top of the tank contributes to higher operating temperatures, thereby reducing the size and cost of the cooling unit required for the vehicle.
The Electronic Control Module (ECM) has a standard data link that accepts input from all drivetrain components, creating a continuous stream of information that is used in conjunction with a high-speed network. The high processing power of the ECM maintains an optimal balance between load elements, fuel efficiency and emissions control.
The HPCR (High Pressure Common Rail) system of the engine can operate at extremely high pressures and provides precise control of the combustion process. In addition, it is capable of generating injection pressures that provide improved and faster power delivery, low noise levels and fuel economy.
The Wastegated Turbocharger, developed by Cummins Turbo Technologies, delivers exceptional performance across the entire power range, as well as improved responsiveness through higher torque at low revs. The range includes the latest class-leading oil and fuel filtration systems designed by Cummins Filtration to provide superior engine protection.
Cummins ISF 3.8 is Euro 4 compliant. Emission compliance is achieved using Selective Catalytic Reduction (SCR) technology. In trucks and light buses, SCR is the most economical method for reducing NOx emissions, as well as the best technology to optimize fuel efficiency, allowing the engine to run cleaner. The SCR system at ISF is a fully integrated internal design developed by Cummins Emissions Solutions. In fact, Cummins is the only diesel engine manufacturer to have patented integrated core technologies, from air intake to exhaust aftertreatment.
Specifications
| Manufacturer | Beijing, China |
| Fuel type | diesel |
| Fuel system | High pressure common rail |
| Configuration | inline |
| Number of cylinders | 4 |
| Cylinder bore, mm | 102 |
| Piston stroke, mm | 115 |
| Displacement | 3760 cc |
| Configuration | Four-stroke, turbocharged |
| Compression ratio | 17.2:1 |
| Displacement kW (hp) / rpm | 112 (152,3) / 2600 (ISF 3.8s3154 Euro-3 GAZ) 112 (152,3) / 2600 (ISF 3.8e4R154 Euro-4 GAZ) 125 (170) / 2600 (ISF 3.8e4168 Euro-4 МАЗ) 122 (168) / 2600 (ISF 3.8e4168 Euro-4 PAZ) 115 (156) / 2600 (ISF 3.8s4154) |
| Torque output, Nm / rpm | 491 / 1200-1900 (ISF 3.8s3154 Euro-3 GAZ) 491 / 1200-1900 (ISF 3.8e4R154 Euro-4 GAZ) 592 / 1300-1700 (ISF 3.8e4168 Euro-4 PAZ) 500 / 1200-1900 (ISF 3.8s4154) |
| Weight (dry) | 280-335 kg (depends on modification) |
| Firing order | 1-3-4-2 |
| Minimum idle frequency | 800 rpm |
| Maximum idle speed limited by the governor | not more than 2950 rpm |
| Dimensions (LxWxH) | 818*728*786 mm 810*695*806 mm (ISF 3.8s4154) |
