Details
Genuine Cummins ISM11E4-385 Euro IV Diesel Engine Assembly for Heavy-Duty Transport Applications
The Cummins ISM11E4-385 is a heavy-duty electronically controlled diesel engine manufactured by Xi'an Cummins Engine Co., Ltd. (XCEC). Designed to meet Euro IV emission requirements, this 10.8L power unit is widely used in long-haul trucks, commercial buses, logistics vehicles and special-purpose transportation equipment.
As a professional engine supplier, Hekopower provides complete Cummins ISM11E4-385 engine assemblies for customers seeking reliable replacement engines, fleet maintenance solutions and international equipment exports. Compared with many product pages that focus only on basic specifications, understanding the engine's operating characteristics, application suitability and maintenance requirements is equally important when selecting the right power solution.
Tech Specs of Cummins ISM11E4-385
General Engine Data
Engine Model: Cummins ISM11E4 385
Type: 6 Cylinders in Line
Displacement: 10.8 L
Bore * Stroke: 114 * 144.5
Net Weight (with flywheel & alternator): 940 Kg
Overall Dimension: 1135mm*825mm*1159mm
Key Performance Data
Rated Power: 283 kW/385 HP
Rated Speed: 1900 rpm
Torque/Rated Speed: 1400 N.m @ 1900 rpm
Max. Torque/Speed: 1825 N.m @ 1200 rpm
More Technical Data
Certification: Euro IV
Aspiration: Turbocharged & Charge Air Cooled
Fuel System: Cummins Fuel System/EMC876
Compression Radio: 16.2:1
Starting System: Electrical Starting Motor 24V(750A)
Lowest Starting Temp Without auxiliary system: -10℃/-25℃
Cooling Method: Water cooled
Firing Order: 1-5-3-6-2-4
Technical Comparisons: Understanding the ISM11 Engine Series
The 10.8-liter platform uses several unique tuning maps and engineering iterations. Understanding these differences protects procurement teams from purchasing incompatible assemblies.
ISM11E4-385 vs. ISM11E4-420
Both models utilize the exact same 10.8-liter base engine block and share a standard structural footprint. The core differentiation rests entirely within the Engine Control Module (ECM) programming and fuel injection calibration maps.
The 385 horsepower variant optimizes fuel consumption profiles for steady highway transport and regional distribution trucks. Shifting to the 420 horsepower model increases maximum torque delivery, but it subjects the internal pistons and the cooling package to elevated thermal loads.
ISM11E4-385 vs. ISME385-30
This comparison reflects a major structural and regulatory shift. The Cummins ISM11E4-385 meets strict Euro 4 emission protocols using an integrated Selective Catalytic Reduction (SCR) aftertreatment system.
The older ISME385-30 relies on an entirely different Euro 3 fuel injection architecture and older mechanical hardware. Attempting to swap an older Euro 3 engine into a vehicle built for Euro 4 chassis wiring structures creates major communication errors between the transmission control unit and the dashboard diagnostic display.
Cummins ISM11 Engine Series Fleet Advantages
The overarching benefit of the 10.8L design is its excellent power-to-weight ratio. It delivers the heavy-duty low-end torque of larger 12-liter variants while shedding several hundred pounds of total component mass. This weight savings translates into an increased legal payload capacity for logistics companies operating long-distance routes.
Maintenance, Troubleshooting, and Component Replacement Tips
Extending the operational lifespan of a Cummins 385HP diesel engine requires specialized preventative maintenance routines and immediate attention to critical sub-systems.
Navigating the Electronic Control System
The Cummins ISM11E4-385 electronic control system manages engine protection protocols by continuously monitoring oil pressures, coolant levels, and exhaust temperatures. If a sensor reports values outside safe parameters, the system triggers a derate mode to protect internal engine components from catastrophic cracking.
Always use calibrated diagnostic scanners to read active fault codes before clearing errors or changing parts. Regular firmware updates to the engine control module ensure optimized injector timing patterns as the internal valvetrain settles with age.
Managing the Fuel System and CPL Configurations
Fuel purity directly impacts the lifespan of your electronic injectors. The high-pressure injection equipment found on Euro IV setups suffers rapid erosion if water contamination or fine abrasive dust gets past the fuel filters.
Engineers must check the Critical Parts List (CPL) stamped onto the engine data plate prior to ordering parts. Different CPL numbers dictate unique internal piston designs, turbocharger trim levels, and fuel pump variants even if the outer horsepower decals look identical.
Sourcing Overhaul Kits and Turbochargers
When the time comes for a mid-life engine refresh, using mismatched aftermarket components can create structural engine failure within weeks. A genuine Cummins ISM11E4-385 turbocharger replacement must match the exact exhaust gas airflow limits set by the factory fuel map.
When purchasing a comprehensive engine overhaul kit, verify that the package contains the revised cylinder liner seals, hardened valve guides, and multi-layered steel head gaskets designed specifically for Euro 4 thermal dynamics.
Real Application Scenarios for the 385HP Platform
The real-world versatility of this specific engine configuration makes it a preferred choice across several industrial transportation sectors.
Regional Heavy-Duty Freight Trucks
This power rating serves as the standard workhorse for long-haul tractors operating on highway networks. The flat Cummins ISM11E4-385 torque curve provides maximum pulling power at low RPM levels. This performance profile allows loaded freight combinations to maintain highway cruising speeds over rolling hills without forcing the driver to constantly downshift the transmission.
XCEC Cummins ISM11E4-385 for Dongfeng Truck Layouts
For operators utilizing Chinese commercial truck chassis, this engine configuration acts as a drop-in replacement for worn factory engines. It hooks up directly to standard Dongfeng engine mounts, matches the factory radiator plumbing lines, and interfaces cleanly with existing air intake piping. This direct compatibility cuts down your total workshop installation labor time by several days.
Commercial Bus and Intercity Coach Fleets
Long-distance passenger transport demands high reliability and low noise levels. The rigid structural design of the engine block dampens internal piston slap and combustion noise.
This creates a smoother ride for passenger coaches. At the same time, the clean Euro IV exhaust system prevents ugly black soot accumulation on the back of the bus bodies.
Hekopower Supply Logistics, Pricing, and Packaging Data
As an established commercial exporter, Hekopower removes the logistical uncertainty from international engine procurement.
Wholesale Procurement and Current Pricing Structures
Individual unit sales and volume fleet replacement pricing depend directly on total order size, current factory production allocation, and specific regional shipping terms. We supply entirely complete, factory-tested engine assemblies to prevent installation errors. Contact our sales department to receive a current, formalized wholesale quote tailored to your destination port.
Shipping Dimensions and Secure Packaging Specifications
We protect your investment from salt fog corrosion and rough handling during maritime transit using heavy-duty export packaging standards.
- Gross Weight: Approximately 1,120 kilograms (including standard shipping crate)
- Net Engine Weight: 940 kilograms (dry weight, no fluids)
- Packaging Type: ISPM-15 compliant treated wooden shipping box
- Standard Lead Time: Typically 15 to 25 business days, subject to existing factory warehouse inventory levels and custom paint requirements.
Cummins ISMe Series, original products from Xi’an Cummins Joint Venture Plant (XCEC), since 1986, 50% owned by Cummins USA, under Cummins Technical & Product Line. This series mainly includes ISME308-30, ISM11E4 308, ISME335-30, ISME345-30, ISM11E4 345, ISM11E5 345, ISME 360-30, ISME 380-30, ISME 385-30, ISM11E4 385, ISM11E5 385, ISM405E-20, ISME 420-30, ISM11E4 420, ISM11E5 420, ISM11E4 440, ISM11E5 440.
Frequently Asked Questions
Can I run the ISM11E4-385 without an SCR aftertreatment system connected?
The engine control system requires data feedback from the exhaust NOx sensors to operate correctly. Removing or disconnecting the SCR system causes the engine computer to instantly enter a permanent safety derate mode, which cuts overall power output by up to forty percent.
What is the verified Cummins ISM11E4-385 fuel consumption rate?
Real-world fuel consumption rates change depending on total vehicle payload, terrain variables, and rear axle gear ratios. On flat highways with a standard gross vehicle weight, the 10.8-liter platform operates efficiently within its optimal RPM island, consuming less fuel per ton-mile than larger 13-liter alternatives.
How do I confirm my engine is a genuine Xi'an Cummins assembly?
Every authentic engine features a stainless steel data plate stamped with a unique eight-digit engine serial number. Hekopower verifies this serial number in the official factory database prior to shipping. This verification ensures your local distributor will honor future part replacement requests.
