Z15NS6B660 Automotive Engine
DCEC Z15NS6B660 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 Z15NS6B660 automotive engine comes with turbocharged and charge air cooled, with a EURO III post-processor.
The prime power at 1800 RPM of DCEC Z15NS6B660 automotive engine is 650 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 Z15NS6B660 Automotive Engine
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Lower oil consumption，Extended stroke，the expansion of the combustion gas more fully, Increase effective efficiency output, the economy is better.
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Strong power，advanced 4 air valves structure, greater horsepower, air burning more thoroughly, while making low speed torque increase, quicken response speedily, climb strongly.
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Excellent reliability, with compulsive cold cut articulated pistons, Can bear extreme high mechanical load and heat load, Strength can be comparable with heavy engine.
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Better emissions, Decorate injector and symmetrical combustion chamber in center, make the cylinder is more homogeneous mixture, burning more fully, lower emissions.
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Super life, 30 % engines 800,000 km without overhaul.
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Excellence power, Clean burning, use the advanced lean-burn closed loop electronic control system.
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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: | Z15NS6B660 |
| Engine Type: | 6 |
| Displacement: | 14.5 L |
| Rated Speed: | 1800 RPM |
| Rated Power / Speed: | 640 HP @ 1800 RPM |
| Peak Torque: | 3200 N.m @ 1000 RPM |
| Fuel System: | XPI |
| Aspiration Method: | Turbocharged and Charge Air Cooled |
| 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 Model |
Advertised Power |
Peak Torque |
Number Of Cylinders |
Fuel System |
| Z15NS6B600 | 519 HP @ 1800 RPM | 2800 N.m @ 1000 RPM | 6 Cylinders | XPI |
| Z15NS6B630 | 622 HP @ 1800 RPM | 3000 N.m @ 1000 RPM | 6 Cylinders | XPI |
| Z15NS6B660 | 650 HP @ 1800 RPM | 3200 N.m @ 1000 RPM | 6 Cylinders | XPI |
| ——END—— | ||||
General Infomation of Z15NS6B660 Automotive Engine |
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| Engine Model | Z15NS6B660 | Advertised Power | 650 HP @ 1800 RPM | ||||||||||||||||
| Peak Torque | 3200 N.m @ 1000 RPM | Configuration | D2A3001BX03 | ||||||||||||||||
| Fuel System | XPI | No. Of Cylinders | 6 | ||||||||||||||||
| Aspiration | Turbocharged and Charge Air Cooled | Displacement | 14.5 L | ||||||||||||||||
| Bore * Stroke | N/A | CPL Code Revision | 5668 | ||||||||||||||||
| Compression Ratio | 23 : 01 | Emission Certification | China MEP NS VIB | ||||||||||||||||
| Rating Types | N3 above 16 tonne, Truck | ||||||||||||||||||
Installation Data of DCEC Z15NS6B660 Automotive Engine |
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| Maximum low idle speed | 800 RPM | ||||||||||||||||||
| Minimum low idle speed | 550 RPM | ||||||||||||||||||
| Nominal no load governed speed | 2100 RPM | ||||||||||||||||||
| Maximum overspeed capability | 2700 RPM | ||||||||||||||||||
| Clutch engagement torque available at the default idle speed | 1160 N-m | ||||||||||||||||||
| Instantaneous load capacity at idle speed | 870N-m | ||||||||||||||||||
| Turbo model | HE550WG | ||||||||||||||||||
| Turbo frame size | Large | ||||||||||||||||||
| ——END—— | |||||||||||||||||||
Engine Performance Data Rated power of Z15NS6B660 Automotive Drive Engine |
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| Parameter | Governed Power | Maximum Power | Peak Torque | |||||||||||||
| Engine Speed | 1800 RPM | 1400 RPM | 1000 RPM | |||||||||||||
| Output Power | 485 kW (650 HP) | 470 kW (630 HP) | 335 kW (449 HP) | |||||||||||||
| Torque | 2575 N-m (1899 lb-ft) | 3200 N-m (2360 lb-ft) | 3200 N-m (2360 lb-ft) | |||||||||||||
| Turbo Comp. Outlet Pressure | 203 kPa (60.1 in-Hg) | 218 kPa (64.6 in-Hg) | 188 kPa (55.7 in-Hg) | |||||||||||||
| Turbo Comp. Outlet Temperature | 186 deg C (367 deg F) | 177 deg C (351 deg F) | 165 deg C (329 deg F) | |||||||||||||
| Heat Rejection to Charge Air Cooler | 81 kW (4629 BTU/min | 71 kW (4032 BTU/min) | 46 kW (2616 BTU/min) | |||||||||||||
| Inlet Air Flow | 508 L/s (1076 ft3/min) | 443 L/s (939 ft3/min) | 302 L/s (640 ft3/min) | |||||||||||||
| Charge (Fresh Air) Flow | 35 kg/min (77.2 lb/min) | 31 kg/min (68.3 lb/min) | 21 kg/min (46.3 lb/min) | |||||||||||||
| Exhaust Gas Flow | 917 L/s (1943 ft3/min) | 854 L/s (1810 ft3/min) | 618 L/s (1309 ft3/min) | |||||||||||||
| Exhaust Gas Temperature | 525 deg C (977 deg F) | 525 deg C (977 deg F) | 463 deg C (865 deg F) | |||||||||||||
| Heat Rejection to Coolant | 182 kW (10350 BT/min) | 167 kW (9497 BTU/min) | 123 kW (6995 BTU/min) | |||||||||||||
| Radiator Coolant Flow | 4.7 L/s (73.9 gpm) | 4 L/s (62.6 gpm) | 3.4 L/s (53.6 gpm) | |||||||||||||
| Fuel Consumption | 95 kg/hr (209.4 lb/hr) | 88 kg/hr (194 lb/hr) | 61 kg/hr (134.5 lb/hr) | |||||||||||||
| Brake Mean Effective Pressure | 2230 kPa (323.4 psi) | 2770 kPa (401.8 psi) | 2770 kPa (401.8 psi) | |||||||||||||
System Technical Data of DCEC Z15NS6B660 Automotive Drive Engine |
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| Air Intake System | Max. temperature rise between ambient air and turbo air inlet | 11.1 delta deg C | ||||||||||||||||
| Cooling System | Maximum coolant temperature – engine out | 107 deg C | ||||||||||||||||
| Maximum coolant pressure (without pressure cap) | 310 kPa | |||||||||||||||||
| Maximum power point, engine coolant outlet temperature difference | 66 delta deg C | |||||||||||||||||
| Maximum torque point, temperature difference at engine coolant outlet | 66 delta deg C | |||||||||||||||||
| Maximum power point, temperature difference between intercooler outlet and ambient temperature | 30 delta deg C | |||||||||||||||||
| Maximum allowable pressure drop (CACDP) for intercooler with OEM intercooler piping | 13 kPa | |||||||||||||||||
| Maximum coolant temperature to trigger engine protection control | 113 deg C | |||||||||||||||||
| The maximum coolant expansion space ratio when the low level sensor alarm is triggered | 28 % | |||||||||||||||||
| Exhaust system | Maximum exhaust backpressure imposed by exhaust system | 65 kPa | ||||||||||||||||
| Maximum exhaust back pressure (when equipped with DPF) | 47 kPa | |||||||||||||||||
| Recommended exhaust pipe size | 127 mm | |||||||||||||||||
| Engine speed corresponding to maximum exhaust back pressure | 1800 RPM | |||||||||||||||||
| Fuel System | Fuel compatibility | N/A | ||||||||||||||||
| Fuel components | N/A | |||||||||||||||||
| Cranking System | Minimum ambient temperature for unaided cold start | – 15 deg C | ||||||||||||||||
| Minimum ambient temperature with grid heater only | – 35 deg C | |||||||||||||||||
| ——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 |
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| 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 Fflywheel Housing | 2. N/A | |||
| Engine Auiliary Accessories | 1. Air Compressor | |||
| 2. Power Steering Pump | ||||
| ------END------ | ||||
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 |
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| 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 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:
How to Select Suitable Dongfeng Cummins Automotive Engine for Your Vehicle?
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.
Tips of Dongfeng Cummins Automotive Engines!
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.
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.
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.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
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