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HekoPower: Premier Supplier of the Genuine Cummins ISM11E4-420 Heavy-Duty Engine
The Cummins ISM11E4-420 engine is a high-performance 10.8L diesel engine designed for heavy-duty commercial vehicles. As a genuine XCEC ISM11E4-420 diesel engine, it delivers 420HP output with strong torque performance, making it ideal for long-haul logistics, construction transport, and mining applications.
HekoPower is a professional supplier of genuine Cummins engines, providing original ISM11E4-420 engine assemblies with stable inventory, fast delivery, and global export support. This engine is widely used in Dongfeng heavy trucks and other commercial vehicle platforms requiring reliable high-power output.
Tech Specs of Cummins ISM11E4-420 Engine
General Engine Data
Engine Model: Cummins ISM11E4 420
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: 306 kW/420 HP
Rated Speed: 1900 rpm
Torque/Rated Speed: 1500 N.m @ 1900 rpm
Max. Torque/Speed: 2000 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 Mastery: ISM11E4-420 Specifications and Data
The ISM11E4-420 technical specifications represent a significant milestone in the 11-liter engine class. Produced by the Xi'an Cummins (XCEC) joint venture, this engine is designed with a "Million Kilometer" life-to-overhaul goal.
Torque Dominance and the ISM11E4-420 Torque Curve
For fleet operators, the most critical metric is the ISM11E4-420 engine torque curve 2000Nm at 1200rpm. This low-speed, high-torque profile ensures that fully loaded 44-ton vehicles can maintain speed on steep inclines without excessive downshifting. By analyzing the ISM11E4-420 fuel consumption and torque data, users can optimize their gear ratios to achieve the best possible fuel efficiency per kilometer.
HPCR Fuel System and ECM Electronic Control
The Cummins ISM11 HPCR fuel system advantages include ultra-high injection pressures that lead to superior fuel atomization. Controlled by the Cummins ECM electronic control engine (specifically the ECM876 support system), the engine provides real-time adjustments to fuel timing. This precision results in a lower ISM11E4-420 fuel consumption rate and smoother operation compared to older mechanical variants.
Performance in Extreme Operational Environments
HekoPower understands that 10.8L Cummins ISM11 Euro IV engines must perform in diverse climates, from humid tropical ports to frigid high-altitude mines.
Cold Start Performance of ISM11E4-420 in Mining Environments
Ignition reliability in the cold is a core strength. The ISM11E4-420 Euro IV turbo intercooled diesel engine features a 24V starting system and intake air pre-heating. This allows for cold start performance of ISM11E4-420 in mining environments down to $-25^\circ\text{C}$ with proper auxiliary heaters, ensuring your operations never stall in winter.
ISMe vs ISM11E4-420 Performance Comparison
A common inquiry for our clients is the ISMe vs ISM11E4-420 performance comparison. While the ISMe is often optimized for European market standards, the ISM11E4-420 is specifically ruggedized for the heavy-duty chassis used in the Dongfeng Cummins ISM11E4-420 truck range. Furthermore, in an ISM11E4-420 vs ISM11E4-385 engine comparison, the 420HP version offers a 10% increase in transient response, essential for varied terrain.
Applications of ISM11E4-420 Engine
The Cummins ISM11 engine is widely used in:
- Heavy-duty trucks
- Long-distance logistics vehicles
- Construction and mining transport trucks
- Dongfeng commercial vehicle platforms
It is also a preferred replacement engine for Dongfeng heavy trucks requiring 420HP output.
Maintenance and Genuine Parts Wholesale
To maintain the peak performance of your ISM11 engine for Dongfeng truck fleets, using genuine components is non-negotiable.
- Overhaul Kits: We provide the ISM11E4-420 engine overhaul kit and genuine parts wholesale, including pistons, liners, and XPI/HPCR injectors.
- Service Intervals: Our technical team provides a detailed guide on ISM11E4-420 fuel system calibration to maximize the life of the ECM.
- Direct Sourcing: Buy ISM11E4-420 diesel engine units direct from HekoPower to ensure 100% authenticity and the most competitive genuine Cummins ISM11E4-420 price.
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.
FAQ About ISM11E4-420 Engine
What is the torque of ISM11E4-420?
It delivers up to 2000Nm at 1200 rpm.
What vehicles use this engine?
Primarily heavy-duty trucks and Dongfeng commercial vehicles.
What is the delivery time?
Typically within 7–10 business days.
