QSF3.8-C74 Industrial Engine

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.

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).
5: Power Output System: Most of electronic controlled Dongfeng Cummins industrial engines are comes with SAE#1 flywheel housing now, while lots of customers need SAE#2 flywheel because of the housing of transmissio is SAE#2, so we have to provide customzie services for those customer, which need to modify flywheel housing, flywheel and starter motor, we also have PTO integrated type flywheel housing available, which can output the whole power of the engine from the PTO on the flywheel housing, we can also provide modification of the mounting side of the starter motor.
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 industrial engine, we are ready to explore the journey of our cooperation.

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.

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.

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.

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.

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.

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.

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.