EQB180-20A
180HP Diesel Engine for Trucks
Engine Type
6 Cylinders, Inline
Displacement
5.9 L
Rated Speed
2500 RPM
Power Output
180 HP (132 kW) @ 2500 RPM
Peak Torque
610 N·m @ 1500 RPM
Emission Standard
EURO II
Bore × Stroke
102 mm × 120 mm
Wet Weight
431 kg
Products and performance
DCEC EQB180-20A automotive engine is a 6-cylinders in line, 5.9 liter four-strokes engine with 102 mm bore and 120 mm stroke, equipped with Bosch P7100(or Weifu PW2000) pump. DCEC EQB180-20A automotive engine comes with turbocharger and Air- Air intercooler, with a EURO II post-processor.
Specifications
EQB180-20A General Information
The engine produces a solid 180 horsepower (132 kW), offering dependable power for demanding
applications.
Peak torque reaches 610 Nm, ensuring strong low‑end pull and confident load handling.
With a displacement of 5.9 litres, the powerplant is built for heavy‑duty durability and consistent
output.
The inline 6‑cylinder configuration (5.9L) provides natural balance and smooth operation across the rev
range.
Fuel delivery is managed by a trusted Bosch mechanical pump, prized for its simplicity and field‑proven
reliability.
Certified to Euro II emission standards, meeting essential environmental requirements.
In summary: Powered by 5.9‑litre inline‑six engine that delivers 180 hp (132 kW) and 610 Nm of torque,
featuring a Bosch mechanical fuel pump and meeting Euro II emission standards.
EQB180-20A Installation Data
The center of gravity is positioned 328 mm from the front face of the engine block.
The center of gravity is located 155 mm above the crankshaft centerline.
The maximum bending moment at the rear face of the block is 1356 N·m.
The crankshaft thrust bearing can handle an intermittent load up to 3781 N.
The crankshaft thrust bearing is rated for a continuous load of 1780 N.
The idle speed is set at 750 RPM.
The maximum no‑load speed reaches 2850 RPM.
The engine can overspeed to 4200 RPM for a duration of 15 seconds.
The clutch torque at 800 RPM falls within the range of 300 to 500 N·m.
The supercharger outlet exhaust pressure limit is 414 kPa.
The exhaust brake delivers a maximum power of 112 kW.
The instantaneous rotating inertia (without flywheel) is 0.25 kg·m².
Engine Performance Data Rated power of DCEC EQB180-20A
Maximum full power – 1194 kW @ 2100 r/min with torque of 5424 N·m. Ideal for short‑term heavy
loads.
Peak torque (max. mode) reaches 5966 N·m @ 1500 r/min, while output power is 938 kW.
Exceptional low‑end pull.
Continuous full power – 933 kW @ 1800 r/min and 4944 N·m. Designed for round‑the‑clock
operation.
Continuous peak torque – 5071 N·m @ 1500 r/min with 797 kW. Sustained performance without
overheating.
Nominal rail pressure reaches up to 986 kPa (max. full power) for superior fuel atomisation.
Brake mean effective pressure (BMEP) peaks at 1489 kPa (max. peak torque) – an indicator of extreme
cylinder loading.
Piston speed reaches 11.1 m/s at maximum full power, balancing high RPM durability.
Intake air flow – up to 1685 L/s (max. full power) ensuring dense charge for combustion.
Exhaust gas temperature (dry manifold) hits 566 °C at max. peak torque – important for
aftertreatment design.
Heat rejection to coolant is 720 kW (max. full power) requiring 40.4 L/s water flow for
stable thermal management.
Friction horsepower – 231 kW at max. full power, reflecting internal mechanical losses.
In summary: This heavy‑duty engine delivers 1194 kW max power / 5966 N·m peak torque, with
continuous ratings of 933 kW / 5071 N·m. Key features include high rail pressure (986 kPa), BMEP up
to 1489 kPa, and robust cooling (720 kW heat rejection). Built for industrial, marine or power generation
applications.
Air Intake System
Maximum Temperature Rise Ambient → Engine Inlet
15 °C temperature differential limit
Maximum allowable temperature rise between ambient air and engine air inlet. Exceeding 15 °C reduces air density,
impairs combustion, lowers power output and increases emissions. Ensure charge air cooling keeps rise ≤15 °C.
Maintain inlet air temp ≤ ambient +15 °C to preserve full load performance.
Intake Restriction (Medium Duty) Dry type + Clean filter
2.9 kPa (300 mmH₂O)
Maximum intake restriction with dry type air cleaner and clean filter – Medium duty. Suitable for moderate load continuous operation (e.g. on‑highway trucks, light industrial equipment).
Ensures adequate airflow and minimises pumping losses.
If restriction exceeds 2.9 kPa with a clean filter, inspect intake system.
Intake Restriction (Heavy Duty) Dry type + Clean filter
3.7 kPa (380 mmH₂O)
Maximum intake restriction with dry type air cleaner and clean filter – Heavy duty. Designed for mining, high‑load continuous applications with high air flow demand.
Limits pressure drop while protecting turbocharger efficiency.
Heavy‑duty operation allows slightly higher restriction; periodic monitoring still required.
Intake Restriction (Dirty Filter) Service threshold
6.2 kPa (635 mmH₂O)
Maximum allowable intake restriction with a severely clogged (dirty) filter. Reaching this value requires immediate filter cleaning or replacement.
Exceeding 6.2 kPa causes power loss, black smoke, increased fuel consumption, and potential turbocharger damage.
Service recommendation: replace or clean filter before restriction approaches 6.2 kPa.
Intake Limits – Summary Key maintenance guidelines
Temperature rise ≤ 15 °C | Clean filter: Medium duty ≤2.9 kPa / Heavy duty ≤3.7 kPa
Dirty filter limit: 6.2 kPa (immediate service required)
Dirty filter limit: 6.2 kPa (immediate service required)
Intake air temperature and restriction directly affect combustion efficiency, exhaust smoke, and turbocharger life.
Strictly control the temperature rise from ambient to engine inlet (15 °C) and monitor filter differential pressure according to duty cycle:
• Medium duty, clean filter ≤ 2.9 kPa (300 mmH₂O)
• Heavy duty, clean filter ≤ 3.7 kPa (380 mmH₂O)
• Dirty filter warning threshold 6.2 kPa (635 mmH₂O)
Adhering to these limits and performing regular filter maintenance ensures optimum engine performance, fuel economy, and reliability over the entire life cycle.
• Medium duty, clean filter ≤ 2.9 kPa (300 mmH₂O)
• Heavy duty, clean filter ≤ 3.7 kPa (380 mmH₂O)
• Dirty filter warning threshold 6.2 kPa (635 mmH₂O)
Adhering to these limits and performing regular filter maintenance ensures optimum engine performance, fuel economy, and reliability over the entire life cycle.
Applicable to heavy‑duty trucks, construction machinery, gensets, and marine propulsion. Regular air filter replacement prevents restriction exceedance.
Turbocharged & Intercooled
Maximum Intake Manifold Temperature-Second Level
55 ℃
Maximum Intake Manifold Temperature-Three-Level
50 ℃
Intercooler Cooling Temperature-Second Level
25 ℃
Intercooler Cooling Temperature-Three-Level
20 ℃
Maximum Allowable Pressure Difference Before and After Intercooling-Three-Level
16.7 (125) kPa(mmHg)
Minimum Inlet Pipe Diameter Allowed-Three-Level
75 mm
Exhaust System
Maximum Back Pressure Imposed by Complete Exhaust System
10.0 (75) kPa (mmHg)
Exhaust Pipe Size Normally Accepable
75 mm
Maximum Static Bend Allowed for Turbocharger Exhaust Flange
N/A
Lubrication System
Low oil Level Inclination Angle-Front Up
45 °
Low oil Level Inclination Angle-Back Up
45 °
Low oil Level Inclination Angle-Fuel Pump Side Up
45 °
Low oil Level Inclination Angle-Exhaust Side Up
45 °
Oil Sump Capacity-Upper Limit
14.2 L
Oil Sump Capacity-Lower Limit
12.4 L
Capacity of The Whole System
16.4 L
Scopes of Supply
Air Intake System induction
- Air Intake Manifold
- Water-Air Intercooler
- N/A not applicable
Fuel System delivery
- Fuel Transfer Pump
- High-Pressure Fuel Pump
- Fuel Filter
Charging System electrical & lube
- Charging Alternator
- Oil Pump
- Oil Filter
- N/A not applicable
Lubricating System rotating assembly
- Flywheel
- Standard Flywheel Housing
Power Output System auxiliary drives
- Air Compressor
- Power Steering Pump
Exhaust System aftertreatment ready
- Exhaust Manifold
- Turbocharger
- Exhaust Elbow
Starting System cranking
- Starter Motor
- Starter Relay
- N/A not applicable
Engine Shut-Down System safety & cooling
- Engine Shut-Off Solenoid
- Water Pump
- Engine Fan
- Standard Radiator
Engine Mounting System chassis integration
- Engine Mounting Bracket
- N/A not applicable
Engine Auxiliary Accessories additional equipment
- Air Compressor
- Power Steering Pump
optional
Maximum Intake Manifold Temperature-Second Level
55 ℃
Maximum Intake Manifold Temperature-Three-Level
50 ℃
Intercooler Cooling Temperature-Second Level
25 ℃
Intercooler Cooling Temperature-Three-Level
20 ℃
Maximum Allowable Pressure Difference Before and After Intercooling-Three-Level
16.7 (125) kPa(mmHg)
Minimum Inlet Pipe Diameter Allowed-Three-Level
75 mm
modifiable Items
Maximum Back Pressure Imposed by Complete Exhaust System
10.0 (75) kPa (mmHg)
Exhaust Pipe Size Normally Accepable
75 mm
Maximum Static Bend Allowed for Turbocharger Exhaust Flange
N/A
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01. What's the Standard Scopes of Supply?
With full ranges of emission standard from Euro 2 to Euro 7, Dongfeng Cummins producing 12 series automotive engines, started from 3.9 liter engine, to 15 liter engine, covering the power range of 125HP to 650HP.
Dongfeng Cummins automotive engine customize developing configurations for big vehicle OEMs in China, based on each of requirement, Dongfeng Cummins producing dozens of different configuration engines with same engine model number, which only SO-Shop Order will be different with each other, the SO number is the identify number of the engine configuration of each model.
Even with same engine model, different SO number engine can have very different configuration with each other, with different prices. Some of SO-Shop Order is not available for commercial market, such as restricted models (Usually for military specifications).
EMAC offering most common, cost effective models which also able to process the production in Dongfeng Cummins, which usually have following accessories as standard configuration.
Power OutPut
180 HP(132kW)
Max Torque
610 Nm
Displacement
5.9L
6 Inline
5.9L
Fuel System
Bosch Mechancial Pump
Emission Standard
Euro II
02. What's the Available Optional Items?
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03. What's the Modifiable Items and Scopes?
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04. Engine Parts & Recommended Wear and Tear Parts
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Chief Engineer
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