ISF3.8-Range | 41-168 HP (105-125kW)
The Cummins ISF3.8 is a compact 3.8L in-line 4-cylinder diesel engine, delivering 141-168 HP and 331-442 lb-ft of torque. Designed for light commercial vehicles, it offers a high power-to-weight ratio, low operating costs, and proven reliability. Featuring an HPCR fuel system, wastegate turbocharger, and advanced thermal engineering, it ensures strong performance and fuel efficiency. Weighing 280 kg with a 2600 rpm rated speed, it meets Euro 3 and Euro 4 emissions standards.
Product Description
Pre-Sales Service
After-Sales Service
Transaction Information
Key Features
- Power & Efficiency：3.8L displacement, 141–168 HP, and up to 600 N·m torque. Cummins HPCR fuel system and wastegate turbocharger deliver fast throttle response and low fuel consumption across the full RPM range.
- Lightweight & Compact：At only ~280 kg dry weight, it’s one of the lightest engines in its class. Ideal for vehicles and equipment with limited space and high payload demands.
- Durability & Easy Service：Rugged cast-iron block, proven B10 life over 500,000 km, and 20,000 km service intervals reduce downtime. Modular design means faster servicing and lower operating costs.
- Emission Compliance：Available in Euro III & IV, upgradable to Euro V/VI. Advanced ECM integration ensures global emission compliance and optimized fuel control via CAN bus.
Applications
The Cummins ISF 3.8 engine is a top choice for global OEMs, fleet operators, and replacement markets due to its versatility and long-term dependability. It is widely used in:
- Medium & light-duty trucks (Foton, JAC, Isuzu, BAIC)
- Urban buses and minibuses
- Municipal vehicles (street sweepers, water trucks)
- Construction equipment (loaders, mixers, excavators)
- Power generators & farm machinery
- High-end RVs and motorhomes
- Engine replacement for Dodge 3.8L or similar gas units
- Retrofit for off-road or industrial applications
Looking for a modern alternative to the Dodge 3.8L gasoline engine? The Cummins ISF 3.8 offers more torque, better efficiency, and commercial-grade support.
Technical Specifications
| Parameter | Specification |
| Engine Model | Cummins ISF 3.8 Turbo Diesel |
| Configuration | 4-Cylinder Inline, Turbocharged |
| Displacement | 3.76 Liters |
| Power Output | 141–168 HP (105–125 kW) |
| Max Torque | Up to 600 N·m (442 lb-ft) |
| Fuel System | Bosch HPCR (Common Rail) |
| Compression Ratio | 17.2:1 |
| Dry Weight | ~280–330 kg |
| Emissions Compliance | Euro III / IV (Upgradeable to VI) |
| RPM (Rated) | 2600 rpm |
| Turbocharger | Cummins Wastegate Turbo |
| Service Life (B10) | >500,000 km |
| Service Interval | 20,000 km |
Cummins ISF 3.8 vs Dodge 3.8L
| Metric | Cummins ISF 3.8 Diesel | Dodge 3.8L V6 Gasoline |
| Peak Torque | 442 lb-ft @ 1600 rpm | 235 lb-ft @ 4000 rpm |
| Urban Fuel Efficiency | 18–22 L/100 km | 22–26 L/100 km |
| Emissions Compliance | Euro VI / Tier 4 Final | Obsolete |
| Total Engine Life (B10) | >500,000 km | ~250,000 km |
| Fuel Type | Diesel | Gasoline |
| Service Interval | 20,000 km | 12,000 km |
| Application Focus | Commercial / Fleet | Passenger vehicles |
| Torque Response | High at low RPM | Moderate at high RPM |
| Global Parts Availability | Yes (via Cummins Network) | Limited aftermarket |
Why Choose Cummins ISF 3.8
- ✅ Built to Last: Proven service life of 500,000+ km
- ✅ Flexible Integration: Suits multiple chassis, body styles, and retrofits
- ✅ Efficient Operation: Low fuel consumption, high torque at low RPM
- ✅ Easy Maintenance: Long service intervals, modular component layout
- ✅ Global Support: Available parts, technical guidance, and on-site engineering assistance
Support & Services
We don’t just sell engines—we support your entire powertrain journey:
- Installation Guidance by Certified Engineers
- Retrofit & Replacement Recommendations
- Maintenance Planning & Technical Documents
- Overseas On-site Support Available
- Crate engine packaging with all documentation
- Parts Supply, From Filters to Full Rebuild Kits
