Details
6.7L Cummins ISDe300-40 Engine Assembly (300HP / 221kW)
HekoPower is a specialized commercial engine supplier, delivering the genuine Cummins ISDe300-40 diesel engine for heavy-duty repower projects and OEM chassis integration. Rated at a robust 300HP (221kW) at 2500 rpm, this 6.7-liter, 6-cylinder powerplant is engineered specifically for demanding transport and logistics environments. We understand that sourcing a commercial diesel engine requires precise data. Fleet managers need more than a generic spec sheet to make purchasing decisions. By providing exact CPL matching and ECU configuration insights, we ensure that every Euro IV Dongfeng Cummins ISDe300-40 Assembly we supply integrates flawlessly into your existing electrical and drivetrain architecture.
Tech Specs of Cummins ISDe300-40
General Engine Data
Engine Model: Cummins ISDe300-40
Type: 4 Cylinders in Line
Displacement: 6.7 L
Bore * Stroke: 107 * 124
Net Weight (with flywheel & alternator): 509 Kg
Overall Dimension: 901mm*723mm*815mm
Key Performance Data
Rated Power: 221 kW/300 HP
Rated Speed: 2500 rpm
Idle Speed: 600-800 rpm
Fuel Consumption @ Rated Power: 195 g/Kw.h
Max Continuous Running Altitude: 3000 m
Max. Torque/Speed: 1100 N.m @ 1400 rpm
Max. No-load Governed Speed: 2850 rpm
More Technical Data
Certification: Euro IV
Aspiration: Turbocharged & Charge Air Cooled
Fuel System: Bosch Direct Injection (HPCR)
Compression Radio: 17.3:1
Starting System: Electrical Starting Motor 24V(750A)
Lowest Starting Temp Without auxiliary system: -12℃/-25℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 9.4 L
ISDe300 40 Repower Compatibility and Application Scenarios
Determining ISDe300-40 repower compatibility is the first critical step in any major fleet overhaul. This 6.7L Cummins ISDe300-40 truck engine is predominantly utilized in heavy-duty rigid trucks, intercity transit buses, and specialized vocational equipment like municipal refuse vehicles. When upgrading an older, high-mileage fleet, this specific model offers a straightforward drop-in swap for chassis previously running early-generation electronic engines.
A common real-world scenario involves cross-border haulage fleets operating in regions that have recently mandated Euro IV emission standards. Purchasing a completely new vehicle is often cost-prohibitive. Instead, operators utilize the Cummins ISDe300-40 replacement engine to legally extend the life of their existing chassis. To guarantee compatibility, technicians must match the flywheel housing to the existing transmission. A frequent roadblock during installation is a mismatched SAE bell housing. We cross-reference your current setup to ensure the rear gear train and flywheel housing bolt up without expensive custom fabrication.
Technical Profile: Cummins ISDe300-40 vs ISB6.7 Differences
Buyers frequently ask us to clarify the Cummins ISDe300-40 vs ISB6.7 differences. While both platforms share a fundamental 6.7-liter displacement and a 107x124mm bore and stroke, they are tuned for distinct operational demands. The ISDe series was heavily optimized for the European and global export markets. It emphasizes precise fuel metering and robust block architecture capable of handling varying global fuel grades.
The DCEC ISDe300-40 utilizes a high-strength cylinder block with integrated fluid lines. This design completely eliminates external coolant and oil hoses, drastically reducing potential leak points under heavy vibration. Furthermore, the ISDe300-40 utilizes a 24-valve cylinder head. Having four valves per cylinder massively improves engine breathing compared to older 12-valve designs. This volumetric efficiency allows the Cummins ISDe300-40 turbocharged intercooled engine to utilize a wastegated HX40 turbocharger effectively, delivering maximum torque at low RPMs while maintaining exceptional power output at highway speeds.
Advanced Engineering: The Bosch HPCR and Euro IV Architecture
Achieving the 300HP Cummins diesel engine rating without sacrificing fuel economy requires advanced injection technology. The Cummins ISDe300-40 Bosch HPCR engine utilizes a High-Pressure Common-Rail system to deliver enhanced combustion and instant throttle response across the entire power band. By maintaining consistent fuel pressure regardless of engine speed, the injectors can deliver multiple precise fuel events per cycle.
This precision directly influences the ISDe300-40 fuel consumption curve. Drivers should be trained to hold cruising speeds within the 1400 to 1800 rpm band. The engine produces its massive peak torque of 1100 Nm at a low 1400 rpm. Keeping the engine within this torque band allows the truck to pull heavy payloads efficiently without unnecessary downshifting, achieving an impressive 195g/kWh fuel consumption rating at full load.
To meet stringent environmental regulations, the Cummins ISDe300-40 Euro IV engine utilizes Selective Catalytic Reduction (SCR). A common misconception is that operators can install an ISDe300-40 into a non-SCR chassis without updating the exhaust routing. Failing to properly configure the SCR hardware and Diesel Exhaust Fluid (DEF) dosing unit will trigger an immediate ECU derating, leaving the truck in limp mode.
Cummins ISDe 6.7L Euro IV Maintenance Schedule and Logistics
Maximizing the lifespan of your 221kW Cummins diesel engine requires strict adherence to maintenance protocols. The Bosch HPCR system operates under extreme pressure, making it highly sensitive to fuel contamination. Using genuine fuel-water separators and adhering to strict micron-specific filter replacements is an absolute necessity. A major mistake made by budget-conscious fleets is assuming cheap aftermarket fuel filters perform identically to OEM units. Even slight micron deviations can score the high-pressure fuel pump internals within a matter of weeks, leading to catastrophic injection failure.
When calculating the total Cummins ISDe300-40 engine replacement cost, logistics managers must factor in freight dimensions. The ISDe300-40 engine crate dimensions and shipping weight are critical for arranging LTL freight or ocean transport. A standard crated unit measures approximately 1000mm by 800mm by 900mm. The gross shipping weight is typically 519kg, while the net engine weight sits at 420kg. As a dedicated DCEC ISDe300-40 engine supplier, we ensure every wholesale engine is securely bolted to treated pallets and wrapped to prevent moisture damage during global transit.
Navigating Our Complete Power Solutions
While the ISDe300-40 represents a high-output solution for demanding heavy-duty applications, your specific chassis or payload requirements may dictate a different power bracket. We offer a full spectrum of displacements and horsepower ratings to perfectly match your technical constraints.
DCEC ISDe Series, original products from Dongfeng Cummins Engine Plant (DCEC), Cummins Joint Venture Plant since 1986, 50% shareholding by Cummins USA. This series mainly includes ISDe140-30, ISDe140-40, ISDe160-30, ISDe160-40, ISDe180-30, ISDe180-40, ISDe185-30, ISDe185-40, ISDe200-30, ISDe210-30, ISDe210-40, ISDe230-30, ISDe245-30, ISDe270-30, ISDe285-30, ISDe300-40.
Frequently Asked Questions (FAQ)
How do I perform a Cummins ISDe300-40 engine configuration check?
You must begin with an ISDe300-40 engine serial number verification. Locate the engine data plate and find the exact Control Parts List (CPL) number. The CPL dictates the specific fuel pump timing, injector flow rate, and turbocharger housing geometry. We cross-reference this CPL against your vehicle's existing ECU to ensure seamless integration.
Does HekoPower provide the ISDe300 40 engine parts catalog PDF download?
Yes. Field mechanics need accurate exploded diagrams to perform maintenance. When you source a complete Cummins ISDe300-40 engine assembly from us, we provide the digital parts catalog to ensure you can quickly identify and order the correct replacement consumables in the future.
What is included in an ISDe300-40 complete engine assembly?
Our assemblies arrive hot-tested and fully dressed. A standard package includes the engine block, 24-valve cylinder head, Bosch HPCR fuel system, turbocharger, water pump, and essential sensors. Accessories such as starter motors, alternators, and air compressors can be customized based on your specific vehicle requirements.
What should be on my ISDe300-40 engine replacement checklist?
Beyond matching the CPL and flywheel housing, your mechanics must verify the ISDe300-40 ECU configuration. Ensure the vehicle's CAN bus system can communicate with the new engine control module. Additionally, verify that your radiator and intercooler have the capacity to shed the heat generated by a 221kW engine, and confirm that your exhaust system is equipped to handle the SCR dosing unit.
