DCEC EQB125-20 Automotive Engine
DCEC EQB125-20 automotive engine is a 4-cylinders in line, 4 liter four-strokes engine with 114mm bore and 145mm stroke, equipped with Bosch vp44 and RQV-K governor. DCEC EQB125-20 automotive engine comes with turbocharged and charge air cooled, with a EURO III post-processor.
The prime power at 2800RPM of DCEC EQB125-20 automotive engine is 125HP.
As part of EMAC, DuraMac provides complete powertrain that integrated with DCEC engine, Fast-Eaton clutch, FAST-CAT transmission, Dongfeng-DANA axle and Komman air suspension, while the electrification of automobile is the certain future, Duramac also get involved with EV powertrain system.
We provide full life cycle services for all customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from trouble shooting to overhaul technical support.
Advantages of DCEC EQB125-20 Automotive Engine
Lower oil consumption，Extended stroke，the expansion of the combustion gas more fully, Increase effective efficiency output, the economy is better.
Strong power，advanced 4 air valves structure, greater horsepower, air burning more thoroughly, while making low speed torque increase, quicken response speedily, climb strongly.
Excellent reliability, with compulsive cold cut articulated pistons, Can bear extreme high mechanical load and heat load, Strength can be comparable with heavy engine.
Better emissions, Decorate injector and symmetrical combustion chamber in center, make the cylinder is more homogeneous mixture, burning more fully, lower emissions.
Super life, 30% engines 800,000 km without overhaul.
Excellence power, Clean burning, use the advanced lean-burn closed loop electronic control system.
Excellent cold start performance, equipped with air suction electric preheater and 7.8 kw power starter, completely improve the cold start performance of the engine. Through the arctic village-MoHe of China-36°C extreme low temperature validation.
Technical Specifications
| Engine Model: | EQB125-20 |
| Engine Type: | 6 |
| Displacement: | 3.9 L |
| Rated Speed: | 2800 RPM |
| Rated Power: | 92 kW @ 2800 rpm |
| Peak Torque: | 410 N.m @ 1500 rpm |
| Fuel System: | HPCR |
| Aspiration Method: | Turbocharged & Intercooler |
| Emission Standard: | N/A |
| Bore*Storke: | 114 mm * 145 mm |
| Packing Size(L*W*H): | N/A |
| Wet Weight: | 680 kg |
| Lead Time: | 15-30 Working Days |
| Payment Terms: | T/T ,L/C |
Engine Model | Advertised Power | Peak Torque | No. of Cylinders | Displacement | Fuel System |
| EQB125-20 | 125 HP @ 2800 RPM | 410 N.m @ 1500 RPM | 4 | 3.9 L | Bosch Pump |
| EQB140-20 | 140 HP @ 2700 RPM | 502 N.m @ 1500 RPM | 4 | 3.9 L | Bosch Pump |
| EQB160-20 | 160 HP @ 2500 RPM | 565 N.m @1500~1600 RPM | 6 | 5.9 L | BYC P7000 Pump |
| EQB170-21 | 170 HP @ 2500 RPM | 560 N.m @ 1300 RPM | 6 | 5.9 L | BYC P7100/RQV-K Pump |
| EQB180-20A | 180 HP @ 2500 RPM | 610 N.m @ 1500 RPM | 6 | 5.9 L | Bosch Pump |
| EQB180-20B | 180 HP @ 2500 RPM | 610 N.m @ 1500 RPM | 6 | 5.9 L | Bosch P7100 / Weifu PW2000 Pump |
| EQB190-20 | 190 HP @ 2800 RPM | 650 N.m @ 1400 RPM | 6 | 5.9 L | Bosch Pump |
| EQB190-21 | 190 HP @ 2500 RPM | 640 N.m @ 1300-1500 RPM | 6 | 5.9 L | BYC P 7100 Pump |
| EQB210-20A | 210 HP @ 2500 RPM | 700 N.m @ 1500 RPM | 6 | 5.9 L | Bosch Pump |
| EQB210-20B | 210 HP @ 2500 RPM | 700 N.m @ 1500 RPM | 6 | 5.9 L | Bosch P7100 / Weifu PW2000 Pump |
| EQB235-20 | 235 HP @ 2500 RPM | 800 N.m @ 1600 RPM | 6 | 5.9 L | Bosch P7100 Pump |
| ——END—— | |||||
General Infomation of DCEC EQB125-20 Automotive Engine | |||||||||||||||||||
| Engine Model | EQB125-20 | Advertised Power | 92 kW @ 2800 RPM | ||||||||||||||||
| Peak Torque | 410 N.m @ 1500 RPM | Curve&Datasheet | FR91361 | ||||||||||||||||
| Fuel System | Bosch pump | No. Of Cylinders | 4 | ||||||||||||||||
| Aspiration | Turbocharged & Intercooler | Displacement | 3.9 L | ||||||||||||||||
| Bore*Storke | 102 mm * 120 mm | CPL Code Revision | 8493 | ||||||||||||||||
| Compression Ratio | 17.3:1 | Emission Certification | GB17691/GB14761 | ||||||||||||||||
| App types | N/A | Emission Standard | Euro II standard | ||||||||||||||||
| Dry weight | 343 | Wet weight | 362 | ||||||||||||||||
Installation Data of DCEC EQB125-20 Automotive Engine | |||||||||||||||||||
| Idle speed | 750 RPM | ||||||||||||||||||
| Maximum no-load speed | 3150 RPM | ||||||||||||||||||
| Maximum overspeed performance (less than 15 seconds) | 4200 RPM | ||||||||||||||||||
| Maximum Altitude Allowed for Continuous Operation | 3000 M | ||||||||||||||||||
| Clutch Engage Torque at 800 RPM | 250 N.m | ||||||||||||||||||
| Distance from the center of gravity to the front face of the cylinder block | 269 Mm | ||||||||||||||||||
| Distance from center of gravity to crankshaft centerline (above crankshaft) | 168 Mm | ||||||||||||||||||
| Allowable maximum bending moment on the rear end face of the cylinder block | 1356 N.m | ||||||||||||||||||
| ——END—— | |||||||||||||||||||
Engine Performance Data Rated power of EQB125-20 Automotive Drive Engine | ||||||||||||||||||
| Rated Power | Torque Peak | Rated Power | Torque Peak | |||||||||||||||
| Engine Speed | 2800 | 1500 | Exhaust Temperature | 480 | 450 | |||||||||||||
| Oil Pressure | 400 | 350 | Fuel Consumption | 26 | 16 | |||||||||||||
| The Air Flow | 9.1 | 5.5 | Coolant Flow | 205 | 110 | |||||||||||||
| The Flow Rate of Pressurized Air | 10.2 | 6.4 | Heat Loss Coolant | 46 | 36.5 | |||||||||||||
| Pressurized Air Pressure | 120 | 80 | Heat Loss Air | 20 | 8.5 | |||||||||||||
| The Exhaust Flow | 21 | 13.4 | Mechanical Loss of Power | 24 | 10.9 | |||||||||||||
System Technical Data of DCEC EQB125-20 Automotive Drive Engine | |||||||||||||||||
| Lubrication system | Total system volume | 10.9 L | |||||||||||||||
| Intake system | Maximum temperature rise from the outside air to the inlet of the supercharger | 15 ℃ | |||||||||||||||
| Maximum intake resistance allowed when using dirty filter elements | 6.2 kPa | ||||||||||||||||
| Charge air cooling | Maximum permissible pressure difference before and after intercooler | 16.7 kPa | |||||||||||||||
| Minimum intake pipe diameter allowed | 65 Mm | ||||||||||||||||
| Exhaust system | Maximum exhaust resistance with exhaust pipe and muffler | 10 kPa | |||||||||||||||
| Minimum exhaust pipe diameter allowed | 75 Mm | ||||||||||||||||
| Allowable maximum static bending distance of supercharger exhaust flange | 27 N.m | ||||||||||||||||
| Fuel System | The maximum oil inlet resistance of the oil transfer pump when using a clean filter | 150 mmHg | |||||||||||||||
| Maximum fuel oil return resistance | 520 mmHg | ||||||||||||||||
| Cooling system | Engine coolant volume | 7 L | |||||||||||||||
| Thermostat standard adjustment temperature (range) | 83-95 ℃ | ||||||||||||||||
| Maximum coolant pressure (without pressure cap, thermostat closed) | 276 kPa | ||||||||||||||||
| Maximum coolant temperature (engine outlet) | 100 ℃ | ||||||||||||||||
| Minimum coolant expansion volume relative to system capacity | 6% | ||||||||||||||||
| Minimum lower tank volume without expansion tank | 5 L | ||||||||||||||||
| Minimum allowable cap pressure | 50 kPa | ||||||||||||||||
| Coolant alarm temperature | 100 ℃ | ||||||||||||||||
| Typical operating temperature range for fans with fan clutch | 93 ℃ | ||||||||||||||||
| shutter opening temperature | N/A | ||||||||||||||||
| 24 Volt electrical system | Maximum resistance of starting circuit | 0.002 | |||||||||||||||
| Recommended minimum battery capacity | DIN72311/BS3911 | ||||||||||||||||
| Cold start system | Minimum cold start temperature without starting aid | -10℃ at 120 RPM | |||||||||||||||
| Minimum cold start temperature when auxiliary (ether) | -25°C at 110 RPM | ||||||||||||||||
| ——END—— | |||||||||||||||||
Scopes of Supply of DCEC EQB125-20 Automotive Engine | ||||
| Air Intake System | 1. Air Intake Manifold | Exhuast System | 1. Exhuast Manifold | |
| 2. Water-Air Intercooler | 2. Turbocharger | |||
| 3. N/A | 3. Exhuast Elbow | |||
| Fuel System | 1. Fuel Transfer Pump | Starting System | 1. Starter Motor | |
| 2. High-Pressure Fuel Pump | 2. Starter Rely | |||
| 3. Fuel Filter | 3. N/A | |||
| Charging System | 1. Charging Alternator | Engine Shut-Down System | 1. Engine Puel Shut-Off Solenoid | |
| Lubricating System | 1. Oil Pump | Cooling System | 1. Water Pump | |
| 2. Oil Filter | 2. Engine Fan | |||
| 3. N/A | 3. Standard Radiator | |||
| Power Output System | 1. Flywheel | Engine Mounting System | 1. Engine Mouting Bracket | |
| 2. Standard Flywheel Housing | 2. N/A | |||
| Engine Auiliary Accessories | 1. Air Compressor | |||
| 2. Power Steering Pump | ||||
| ——END—— | ||||
Optional Accessories of DCEC EQB125-20 Automotive Engine | ||||
| Air Intake System | 1. Air Intake Pre-Heater | Exhuast System | 1. Muffler & Bellows | |
| 2. Air Intake Shut-Off Valve | 2. Flame Trap | |||
| 3. Air Filter | 3. Spark Arrestor Type Muffler & Bellows | |||
| 4. Air Intake Pre-Filter | 4. DPF System | |||
| 5. Air Filter Alarm System | 5. N/A | |||
| Fuel System | 1. Coarse Filter | Starting System | 1.Manual Magnetic DC Contactor | |
| 2. Fuel Pre-Heater | 2. Dual Ears Flywheel Housing | |||
| 3. N/A | 3. Spring Starter Motor | |||
| 4. N/A | 4. Air Starter Motor | |||
| 5. N/A | 5. Hydraulic Starter Motor | |||
| Lubricating System | 1. Oil Pre-Heater. | Cooling System | 1. Silent Type Radiator | |
| 2. N/A | 2. Plateau Radiator | |||
| 3. N/A | 3. Salt-Spray Resistant Radiator | |||
| 4. N/A | 4. Coolant Pre-Heater | |||
| Power Output System | 1. Clutch | Engine Mounting System | 1. Shock Absorber Pad | |
| Engine Auiliary Accessories | 1. Hydraulic Oil Pump | Control System | 1. Can Add Mechanical Accelerator Pedal | |
| 2. Air Conditioner Compressor | 2. N/A | |||
| 3. N/A | 3. N/A | |||
| ——END—— | ||||
As part of EMAC, DuraMac is Committed to providing reliable powertrain system to commercial vehicle manufacturers around the world, a sub-brand of EMAC group that focusing on automotive application. Based on dozens of world-class engine manufacturing resources in China, and as official exporting agent of Fast tranmission (Joint venture with Caterpillar AT tranmission), Dongfeng Dana axle and Komman air suspension, DuraMac provides one-stop solutions covers from pre-design to components supply, from installation to commissioning, from pre-sales communication to after-sales service support.
For more information of our automotive power system products, you are welcome to visit DuraMac homepage: www.duramac.com
Modifiable Components of DCEC EQB125-20 Automotive Engine | ||||
| Air Intake System | 1. Installation Position of Air Filter | Exhuast System | 1. Can Modify Installation Position and Direction of | |
| 2. Upgrade to Heavy-Duty Type Air Fitler | Turbocharger | |||
| 3. N/A | 2. Water-Cooled Exhuast manifold | |||
| 4. N/A | 3. Water-Cooled Turbocharger | |||
| Fuel System | 1. Upgrade to Fuel Fitler That Integrated with Fuel Transfer | Starting System | 1. 12V Starter Motor For 12v Electric System | |
| Pump and Fuel Pre-Hearter | 2. Upgrading to Specified Brand and Speicifications of | |||
| 2. N/A | Starter Motor | |||
| Charging System | 1. 12V Charging Alternator for 12v Electric System | Engine Shut-Down System | 1. 12V Solenoid for 12v Electric System | |
| 2. Explosion-Proof Charging Alternator | 2. Explosion-Proof Solenoid | |||
| 3. Upgrading to Specified Brand And Speicifications of | 3. N/A | |||
| Charging Alternator | 4. N/A | |||
| Lubricating System | 1. Oil Pan Position | Cooling System | 1. Can Modify Engine Fan Into Blower Fan or Suction Fan | |
| 2. Number of Dipstick | 2. Can Modify Central Position of Engine Cooling Fan | |||
| 3. Position of Dipstick Can Choose From 6 Positions | 3. Can Choose Type of Engine Fan From Mechanical Type or | |||
| 4. Can Modify Oil Filter to be Remote Installation | Electric Type | |||
| Power Output System | 1. Can Modify Size of Flywheel Housing and Flywheel. | Engine Mounting System | 1. Can Modify Engine Mouting Bracket. | |
| 2. Dual-Ear Flywheel Housing (for Twin-Starter System) | 2. N/A | |||
| 3. Some of Models Can Modify Flywheel Housing Into PTO | 3. N/A | |||
| Integrated Type. | 4. N/A | |||
| 4. Engine Have Connecting Port of PTOs, That Able to | 5. N/A | |||
| Provide Power Output. | 6. N/A | |||
| Engine Auiliary Accessories | 1. All of Auxiliary System Can Choose Specified Brands and | |||
| Specifications. | ||||
| 2. Additional Auxiliary Systems Can be Added for Special | ||||
| Applications. | ||||
| ——END—— | ||||
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
![](/wp-content/uploads/2021/08/WhatApp-Icon.png"){kind=icon}
