EQB125-20 Automotive Engine

DCEC EQB125-20 automotive engine is a 4-cylinders in line, 4 liter four-strokes engine with 114 mm bore and 145 mm 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 2800 RPM of DCEC EQB125-20 automotive engine is 125 HP.

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 / Speed:	125 HP @ 2800 RPM
Peak Torque:	410 N.m @ 1500 RPM
Fuel System:	HPCR
Aspiration Method:	Turbocharged & Intercooler
Emission Standard:	N/A
*Bore Stroke:**	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

Fly Wheel

Oil Filter

coming soon

Engine Model	Advertised Power	Peak Torque	No. of Cylinders	Displacement	Fuel System
B140-33	140 HP @ 2500 RPM	502 N.m @ 1500 RPM	4	3.9 L	BYC Pump / RQVK
B170-33	170 HP @ 2500 RPM	560 N.m @ 1300 RPM	6	3.9 L	BYC Pump / RQVK
B190-33	190 HP @ 2500 RPM	640 N.m @ 1300 – 1500 RPM	6	3.9 L	BYC Pump / RQVK
B210-33	210 HP @ 2500 RPM	700 N.m @ 1500 RPM	6	3.9 L	Weifu PH Pump / RQVK
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

125 HP @ 2800 RPM

Peak Torque

410 N.m @ 1500 RPM

Curve&Datasheet

FR91361

Fuel System

Bosch pump

No. Of Cylinders

Aspiration

Turbocharged & Intercooler

Displacement

3.9 L

Bore * Stroke

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

DCEC EQB125-20 Automotive Engine DATASHEET

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——

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.

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.

Scopes of Supply of DCEC 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
Power Output System	2. Standard Fflywheel Housing	Engine Mounting System	2. N/A

Engine Auiliary Accessories	1. Air Compressor
Engine Auiliary Accessories	2. Power Steering Pump
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What's the Available Optional Items?

Dongfeng Cummins only provides customize service for the large quantity orders or large OEMs, which means usually the order quantity are higher than 1000 units. For the small quantity engine project, EMAC provides customize services with our own resource and engineer team.
EMAC have rich experience on the customize developing, which provides abundant optional items based on the requirement of each project. The typical optional items are special Prestolite charging alternator, prestolite starter motor, Knorr Air compressor. Valeo air conditioning compressor, ECU output socket set, engine accelerate pedal etc.

Optional Accessories of DCEC 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

What's the Modifiable Items and Scopes?

As explained in the standard scopes of supply, Dongfeng Cummins not able to provide customize developing for small quantity projects or small OEMs, so EMAC helps SME OEMs to provide customize services, not only providing additional optional items, but also provides customize modification services to meet their requirements based on the exisiting engine SO number.
As flexible service ability is our core advantages, EMAC is very experienced and good at providing customize services, the common customize services are as below:
1: AIr Intake System: Change the air intake direction.
2: Air Exhuast System: We are able to change the turbocharger direction as the interaction on installation could be occured, also change change the air exhuast direction.
3: Lubricating System: Modify lubricating system is one of the most common requirement from customer, we can provide flat-type engine oil pan, to lower down total engine height, which usually required for special vehicles. For the standard engine oil pan, we also can change the direction of the engine oil pan.
4: Cooling System: There are lots of options for the engine cooling system, for the engine fan, we can provide customize for the material of engine fan (plastic fan or steel fan), wind direction of the engine fan (blower fan or suction fan ) and types of engine fan (mechanical fan or electric control fan).
3: Lubricating System: Modify lubricating system is one of the most common requirement from customer, we can provide flat-type engine oil pan, to lower down total engine height, which usually required for special vehicles. For the standard engine oil pan, we also can change the direction of the engine oil pan.
6: Electric System: All of Dongfeng Cummins engines are comes with standard 24V electric system, while some customer need to modify the electric system into 12V, we can also modify the starter motor and alternator into appointed brand or appointed specifications.
EMAC is your reliable professional power system partner, feel free to contact our services team to get detailed information about our standard scopes of supply, optional items and modifiable parts for our Dongfeng Cummins automotive engine, we are ready to explore the journey of our cooperation.

How to Order Engine to Replace Your Old Engine?

There are three types of engine replacements demand, type A is to replace the old Dongfeng Cummins engine, the original engine is produced by Dongfeng Cummins, type B is to replace Cummins engine produced in other countries including UK, USA, Mexico, India or Japan Komatsu Cummins, type C is to replace other brands engine or even gasoline engines with Dongfeng Cummins produced engines. The detailed introduction and replacement process are as below:

Type A: Engine Replacement Requirement (Original Engine is Dongfeng Cummins Engine).

This is most simple demand case, you just need to provide us the original engine name plate, and then we can easily check and confirm what exactly you need, and we also ensuring that the engine from us will be 100% same with your original engine. (In some case that the vehicle manufacturing modify the engine on their own, we are not able to supply the parts or the condition that modified by the vehicle manufacturer)

Type B: Engine Replacement Requirement (Original Engine is Cummins Engine but produced in UK, USA or other Cummins engine plant).

EMAC have rich experiences in replace the UK, USA or other engine plant produced engine, with Dongfeng Cummins produced Cummins engines, we required the original engine name plate photo to obtain the related information (at least we will need engine serial number, with engine model name only is useless for us, we are not able to provide quotation with engine model name only for the replacement project), and then we can check out the BOM list and all accessories of your original engine serial number, and then we can check and compare with the BOM list of our Dongfeng Cummins produced engine, choose the most closest SO number engine, and modify the parts that not same with your original engine, we have delivered hundreds of cases of replace the customer's original engine that produced in Cummins UK, USA or other engine plants with Dongfeng Cummins produced engines, you can refer to our video introduction on Youtube: https://youtu.be/dYVgRM5NsUo

We can NOT guarantee the engine produced by Dongfeng Cummins is exactly same with your original engine, but we can guarantee that all of engines from EMAC will have no problem with installtion and performance, which all of engines can works very well after replacement.

Type C: Engine Replacement Requirement (Original Engine is other brnad engines even gasoline engines).

EMAC also have rich experiences in replace the engine that not Cummins installed, these engines can be other brands such as Deutz, Caterpillar, Perkins, Komatsu or others, we even had experiences of replace gasoline engine with Dongfeng Cummins produced diesel engines.
This kind of appliaction is more complex and quite risky, EMAC can't do much thing due to lacking of information, the only thing we can guarantee is the performance after replacement, we check and compare the engine performance curve of original engine and our Dongfeng Cummins engine, and then we select the most suitable model for replacement. Due to we are lacking of the installation spaces and related accessories, we will send the both CAD and 3D drawing for our recommend engine model, and then customer have to evaluate the risky of replace the original engine with our engine, especially the risky of space, the possibile interactive when installation, and the risky of modify related coolant pipe, air pipes and wiring harness. Normally this kind of request consuming lots of energy and resource for us to carry on, also quite risky for us, so we will not work on the replacement quantity that below 50 units.
When your requirement is replacement, please tell our customer service team of what type of replacement you need, and provide us original engine name plate, the engine name plate is the necessary material before we start our business negotiations, we will NOT reply to all inquiry that even can't provide engine name plate.

How to Select Suitable Dongfeng Cummins Automotive Engine for Your Vehicle?

To choose a suitable engine for truck, bus or special vehicle manufacturer is quite simple, because the buyer is the manufacturer, so usually they are quite flexible with space, pipes and wiring connections.
The following process are the standard process for us to select a suitable engine model for truck, bus or special vehicle manufacturer demand.
Step 1: We need basic information of the required engine, including rated power, rated speed and emission standard of the required engine.
Step 2: EMAC will evaluate the requirement and select the suitable engine model for customer, with engine data sheet, engine performance curve, CAD darwing, 3D model and budgetary quotation provided back to customer.
Step 3: Customer should check and compare the engine data sheet, performance curve and related drawing and confirm all details one by one. Most important thing is confirm the performance curve suitable for the requirement.
Step 4: After engine confirmed, we have to check and confirm the specifications of accessories one by one carefully, like the electric system specifications (12V or 24V), the detailed specifications of starter motor, charging alternator, air compressor, power steering pump, A/C compressor etc.
Step 5:Confirming the accessories positions and connections, customer need to check and confirm all positions are suitable for the project, such as engine fan, turbocharger, oil pan position, and connections of air pipe, coolant pipe, wiring harness etc.
Step 6: After confirming the engine performance, position, connection and specifications of all accessories, we will be able to provide accurate quotation for prototype and batch order. Prototype is strongly recommend to start the cooperation, to avoid the possible problem, risky on the engine with batch order.

Notes:

1: Technical support including technical training, onsite installation and commissioning services are avaiable with additional chargers.
2: We are able to supply complete powertrain system, including engine, transmission, transfer, axle, suspension etc, engine with transmission is highly recommended, because if we supply both engine and transmission, we can run simulations for the vehicle, which we usually will provide customer a simulation report, with the simulated result of Balanced Maximum Vehilce Speed and Maximum Grade Ability at different speed.
3: EMAC able supply complete chassis that integrate all powertrain system together, which can greatly reduce the manufacturer's design works and reduce the system mismatching risky.

Tips of Dongfeng Cummins Automotive Engines!

Dongfeng Cummins is one of 50:50 joint venture of Cummins in China, its official Cummins factory that following high Cummins USA production and quality control standard, the Dongfeng Cummins factory swap every 5 years between appointed employee from Dongfeng Motor and Cummins. For more details, you can refer to the company introduction of DCEC-Dongfeng Cummins Engine Company.

Company Introduction: DCEC Engine Company

DCEC Engine Co., Ltd. (DCEC), located in Xiangyang, Hubei Province, is a 50/50 joint venture between DCEC Inc. and Dongfeng Automobile Co.,Ltd. In 1986, Dongfeng Automobile Co.,Ltd. signed a license agreement with DCEC Inc. for B-series engines. DCEC Engine Co., Ltd. was established in June 1996, with registered capital of over 100 mi...

Started the production of Cummins engines in China in 1980s, Cummins products has been in China for over 40 years, thousands of people have worked for Cummins China and some of them are very skilled experienced engineer, some of them resigned from Cummins to set up their own small workshops or assembly factories that focusing on producing copy Cummins engines.

A Sad Experiece With Counterfeits DCEC Generator Set

Whoever dealing with Chinese suppliers should always remember that, price is always not a problem with your Chinese suppliers, but trust is the problem! EMAC might can't give you lowest price, but EMAC never cheat any of customer and always be responsible for all of our business partners.

Price is always not the problem for Chinese suppliers, there are many tickies to lower down the engine prices, such as supply self-rebuild engine as new engine, supply official RECON engine from Cummins as brand new engine, assembly the fake engine with after-market parts, supply lower power model engine and change the name plate etc. You can find plenty of suppliers on alibaxx.com with various prices, the classic Chinese business style is tell you that he give you very low price and not make profit, how can you believe a businessman will make business that have no profit? They gave you low price not becuase they share their profit to you?
As a matter of fact, Chinese supplier often make their profit much more higher by selling the low quality copy products as genuine brand new products! Always remember YOU GET WHAT YOU PAID!
The key point of dealing with Chinese supplier, is to find and choose reliable business partner that will not cheat you for short-term business, but with vision of build long-term career and life-time partnership, EMAC is one of the reliable partner that not chasing for short-term high profit, but we cares our decades of good reputation and we working with all business partners not as supplier and customers, but as close friend and brothers.

FAQ of Dongfeng Cummins Automotive Engines?

1: What mean by DCEC?

DCEC is the short name of Dongfeng Cummins Engine Company, take the first letter of each word, it comes with DCEC as short name, for more details about DCEC, you can refer to the company introduction of DCEC-Dongfeng Cummins Engine Company.

Company Introduction: DCEC Engine Company

DCEC Engine Co., Ltd. (DCEC), located in Xiangyang, Hubei Province, is a 50/50 joint venture between DCEC Inc. and Dongfeng Automobile Co.,Ltd. In 1986, Dongfeng Automobile Co.,Ltd. signed a license agreement with DCEC Inc. for B-series engines. DCEC Engine Co., Ltd. was established in June 1996, with registered capital of over 100 mi...

2: Does your engines copy products?

This question is quite often from customer that not familiar with Cummins, Cummins have over 20 joint ventures in China now, and 6 of them are engine joint venture, which Cummins owns 50% share of all of those 6 engine plants, so all of the Cummins factories in China are genuine Cummins factory, that following high Cummins USA production and quality control standard. EMAC is the business partner of DCEC, and we are supplying powertrain and engine power pack based on genuine brand new engines from Dongfeng Cummins for all different applications, EMAC is a reliable and professional power system solution provider that offering abundant various options.

3: Why there are so many companies selling Cummins engines?

There are plenty of companies selling Cummins engines in China, especially on the B2B platform, such as alibaxx.com, you can find plenty suppliers there with attractive prices, Cummins products has been in China for over 40 years, thousands of people have worked for Cummins China and some of them are very skilled experienced engineer, some of them resigned from Cummins to set up their own small workshops or assembly factories that focusing on producing copy Cummins engines. You should be careful of being cheated by the attractive prices with copy or rebuild products.

4: How can I identify if the engine genuine or not?

Cummins keep working on the updating its identification system, technically, there are serial number on all key components of Dongfeng Cummins engines, including cylinder block, cylinder head, turbochager, fuel pump, starter motor, alternator, you can collecting the serial number (NOT part number), and then call DCEC call service center to identify if all the numbers are matching to the original number or not. EMAC continuously updating the latest Cummins identification system, you are welcome to following our website or keep in touch with our customer services team to get latest information from Cummins.

5: What's the warranty policy for the engines supplied by EMAC?

EMAC following standard Dongfeng Cummins warranty policy, which will update sometimes, you can following us to get the latest warranty policy from Dongfeng Cummins. Generally EMAC only afford the defective parts cots and shipping costs for the warranty claims, labor costs and transportation costs are not covered in the warranty.
However, EMAC is building our own independant after-sales service system now, which aims to build a global service network, with resouces of global repair and engineering network, which we believe can bring all business partner benifit in future, helping all of OEM manufacturers expanding their market into global market without worries of lacking after-sales service network. For more details about our Global Service, you can visiting www.global-service.com.

6: How about the future parts supply for the engines? Are you able to supply parts?

As the support team of EMAC's business scope, PartMac is our own brand that focusing on genuine parts directly from all brand factories.
All of EMAC’s partners are facing big challenges with sourcing original spare parts in China. Committed to providing truthworthy and professional after-sales support and parts supply, PartMac is a sub-brand of EMAC group that focusing on parts business. Stick to original parts only, PartMac can’t give any solution on CHEAP PARTS, but you don’t need to worry about any quality issues with every single parts from PartMac.