Details
Genuine DCEC Cummins 4BT3.9-C110 Complete Engine Assembly (110HP)
When equipment fails on a job site, you need a dependable power source to get things moving again. The Cummins 4BT3.9-C110 is a heavy-duty, 3.9L 4-cylinder inline construction engine designed specifically for harsh operating environments. Built by Dongfeng Cummins Engine Company (DCEC), this specific configuration delivers a steady 80kW (110HP) at 2600 RPM. As a mechanical diesel engine, it bypasses the complexities of modern electronics, offering raw, reliable power for industrial machinery. Whether you are sourcing a 110HP water-cooled Cummins industrial engine replacement or building a custom industrial power pack, HekoPower provides the complete engine assembly directly from the factory.
Tech Specs of Cummins 4BT3.9-C110
General Engine Data
Engine Model: Cummins 4BT3.9-C110
Type: 4 Cylinders in Line
Displacement: 3.9 L
Bore * Stroke: 102 * 120
Overall Dimension: 867mm*544mm*988mm
Net Weight (with flywheel & alternator): 338 Kg
Key Performance Data
Rated Power: 80 kW/110HP
Rated Speed: 2600 rpm
Max Torque/Speed: 350 N.m @ 1500 rpm
Fuel Consumption @ Rated Power: 258g/Kw.h
Max Continuous Running Altitude: 2000 m
More Technical Data
Certification: Euro I
Aspiration: Turbocharged-Intercooled
Fuel System: Weifu PW/RSV
Compression Ratio: 17.3:1
Electrical System (Starter Motor/Alternator): 12V/24V
Lowest Starting Temp Without auxiliary system: -12℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 7.9 L
Real-World Application Scenarios
The DCEC 4BT3.9-C110 industrial engine is not a generic motor. It is engineered with a specific torque curve and power output tailored for high-load construction equipment.
Equipment manufacturers frequently utilize the 4BT3.9-C110 as a wheel loader engine and an excavator engine because of its rapid torque response during digging and lifting cycles. The mechanical governor reacts instantly to sudden loads, preventing stalling when hydraulic pressure spikes.
Beyond earthmoving, this 3.9L diesel engine excels in continuous-duty applications. You will frequently see it installed as a road roller engine or a drilling rig engine, where consistent RPMs are required for hours at a time. Because of its compact engine dimensions and manageable engine weight, it is also highly sought after as a drop-in replacement for mobile hydraulic power unit engines.
Technical Comparisons: 4BT3.9-C110 vs. Similar Cummins Models
Fleet managers and mechanics often ask about the specific differences between the various 3.9L Cummins industrial engines. Understanding these distinctions is critical before ordering a Cummins 4BT3.9-C110 replacement engine.
4BT3.9-C110 vs 4BT3.9-C100 and C105
The primary difference between the C110 and the C100 or C105 models lies in the fuel mapping and pump calibration. While they share the identical 102x120mm bore and stroke, the DCEC 4BT3.9-C110 fuel pump is calibrated to deliver slightly more fuel volume at peak RPM. This yields 110HP compared to the 100HP or 105HP variants, making the C110 slightly better suited for heavier equipment that requires a bit more top-end pushing power.
Difference Between 4BT3.9-C110 and 4BTA3.9-C110
A very common question we get as a DCEC 4BT3.9-C110 supplier is the difference between the 4BT and 4BTA Cummins engines. The "A" stands for Aftercooled. The 4BT3.9-C110 is simply turbocharged. The intake air comes from the turbo directly into the intake manifold. The 4BTA3.9-C110 routes that turbocharged air through a jacket-water aftercooler before it enters the engine. While both might be rated at 110HP, the 4BTA will generally handle sustained high-temperature environments better, while the 4BT is simpler with fewer plumbing connections to maintain.
4BT3.9-C110 vs 4BTAA3.9-C110
Taking it a step further, the 4BTAA utilizes an air-to-air charge cooler (intercooler) mounted in front of the radiator. The standard 4BT3.9-C110 does not have this. If your machinery lacks the physical space in the engine bay to mount a large intercooler, you must stick with the standard 4BT3.9-C110 complete engine assembly to ensure a proper fit.
Maintenance and Engine Replacement Tips
Keeping a Cummins 110HP construction engine running requires strict adherence to maintenance schedules, particularly concerning the mechanical fuel system.
The heart of the Cummins 4BT3.9-C110 mechanical fuel system is the Weifu A pump paired with a 4BT3.9-C110 RSV governor. The RSV is a mechanical variable-speed governor that relies on centrifugal flyweights and spring tension to control fuel delivery. Operators must ensure fuel filters are changed every 250 hours. Because this is a 4BT3.9-C110 mechanical fuel injection engine, any water or debris in the fuel will bypass electronic sensors and directly scar the precision plungers inside the fuel injection pump.
When conducting a complete replacement, mechanics should inspect the engine mounts. The torque specification for the motor mounts must be strictly followed to prevent heavy vibration transfer. Additionally, when dropping in a new DCEC 4BT replacement engine, always prime the Weifu PW pump and crack the injector lines to bleed the air before the initial crank. Failing to bleed the system will cause dry-cranking, which can damage the starter and the injection pump.
Common Misconceptions About Mechanical Industrial Engines
A frequent misconception in the construction industry is that mechanical diesel engines like the 4BT3.9-C110 are outdated and should be retrofitted with newer electronic common-rail engines.
In reality, mechanical injection is highly preferred in remote mining sites, agricultural fields, and heavy construction zones. Electronic engines require diagnostic laptops, specialized software, and delicate wiring harnesses that frequently fail in high-dust and high-vibration environments. The 4BT3.9-C110 mechanical diesel engine can be diagnosed by ear and repaired with standard hand tools. It provides unmatched reliability where modern dealership support simply isn't available.
Explore the Cummins B3.9-C Series Family
Finding the exact configuration for your construction machinery is critical to preventing downtime. While the 110HP model discussed above fits a wide range of standard equipment, your specific hydraulic pump or drivetrain might require a different power rating, governor setup, or aspiration method. HekoPower carries the entire lineup of related 3.9-liter industrial engines to ensure a perfect match for your chassis.
To assist equipment operators in selecting the exact power output required for their machinery, This series mainly includes 4BT3.9-C80, 4BT3.9-C100, 4BT3.9-C105, 4BT3.9-C110, 4BTA3.9-C80, 4BTA3.9-C100, 4BTA3.9-C110, 4BTA3.9-C120, 4BTA3.9-C125, 4BTA3.9-C130, 4BTAA3.9-C80, 4BTAA3.9-C100, 4BTAA3.9-C110, 4BTAA3.9-C115, 4BTAA3.9-C125, 4BTAA3.9-C130.
Frequently Asked Questions (FAQs)
Where can I find the 4BT3.9-C110 spare parts catalog and repair manual?
As an authorized Cummins 4BT3.9-C110 China supplier, HekoPower can provide the official data sheets, maintenance manuals, and parts catalogs. When you purchase an engine assembly from us, we ensure you have the documentation needed for long-term maintenance.
What is the 4BT3.9-C110 rated power and torque?
This specific engine model is rated at 80kW (110HP) at 2600 RPM. If you require the exact torque curve graph for hydraulic pump pairing, please contact our engineering team to request the Cummins 4BT3.9-C110 technical specifications and data sheet.
Can you provide the Cummins 4BT3.9-C110 engine price for wholesale?
Yes. The Cummins 4BT3.9-C110 complete engine price fluctuates based on global material costs and currency exchange rates. We serve as a direct 4BT3.9-C110 engine assembly supplier and exporter, offering competitive pricing for both single-unit replacements and bulk fleet orders. Contact our sales team for an exact quote.
What is the estimated 4BT3.9-C110 fuel consumption?
Fuel consumption relies heavily on the load factor of the equipment. A wheel loader constantly pushing heavy material will consume more fuel than a drilling rig operating at a steady mid-range RPM. Generally, mechanical direct injection offers excellent fuel economy for its displacement size.
