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SDEC 6ETAA11.8-G22 G-Drive Engine

SDEC 6ETAA11.8-G22 Generator Drive Engine uses a 6 Cylinder design, simple structure, the overall size is smaller than the same power diesel engine.

With supercharging and intercooling technology, the 6ETAA11.8-G22 generator drives the engine (1500 RPM) with a displacement of 11.8 L.

The Engine has a maximum power output of 307 kW, enough provide high performance, which is important for applications that require quick acceleration or long distance runs.

We provide all customers with full life cycle services from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from troubleshooting to maintenance technical support.

Advantages of 6ETAA11.8-G22 G-Drive Engine

  • SDEC 6ETAA11.8-G22 Generator Drive Engine adopts microcomputer control system, good overall technical design, production and assembly are more in line with the standard technical requirements, and discard the technical design defects of the assembly unit.

  • The engine uses a new combustor to increase the fuel injection pressure, improve the combustion process, and achieve environmental protection indicators: engine emissions meet non-road country III emission standards.

  • The 6ETAA11.8-G22 generator Drive Engine optimizes the design of the lubrication and cooling system, reduces the number of external pipelines and parts, and uses the whole brushless alternator to greatly improve the three leakage and greatly enhance the reliability.

  • The engine has the advantages of large power, low fuel consumption, easy start, low emission, low vibration noise, easy maintenance and use.

Technical Specifications

Prime Power:
307 kW
Engine Type:
In-Line,4 Strokes, Water-Cooled,4 Valves
Rated Power / Speed:481 kW @ 1500 RPM
Combustion Type:Direct Injection
Firing Order:1-5-3-6-2-4
Number of Cylinders:6
Injection Timing:Electric Type
Bore * Stroke:128 mm * 153 mm
Dry Weight:1165 kg
Displacement:11.8 L
Dimension (L * W * H):1787 mm * 918 mm * 1304 mm
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C


Prime Power



6ETAA11.8-G21307 kW @ 1800 RPM11.8 LTurbocharged & Air-Air Intercooled
6ETAA11.8-G22307 kW @ 1800 RPM11.8 LTurbocharged & Air-Air Intercooled
6ETAA11.8-G31340 kW @ 1800 RPM11.8 LTurbocharged & Air-Air Intercooled
6ETAA11.8-G32307 kW @ 1800 RPM11.8 LTurbocharged & Air-Air Intercooled
6ETAA11.8-G33340 kW @ 1800 RPM11.8 LTurbocharged & Air-Air Intercooled
6ETAA12.8-G21368 kW @ 1800 RPM12.8 LTurbocharged & Air-Air Intercooled
6ETAA12.8-G22368 kW @ 1800 RPM12.8 LTurbocharged & Air-Air Intercooled
6ETAA12.8-G31401 kW @ 1500 RPM12.8 LTurbocharged & Air-Air Intercooled
6ETAA12.8-G32360 kW @ 1800 RPM12.8 LTurbocharged & Air-Air Intercooled
6ETAA12.8-G310.1450 kW @ 1800 RPM12.8 LTurbocharged & Air-Air Intercooled
6ETAA12.8-G310450 kW @ 1500 RPM12.8 LTurbocharged & Air-Air Intercooled
SC10E380D2255 kW @ 1500 RPM10.8 LTurbocharged & Air-Air Intercooled
SC12E420D2280 kW @ 1500 RPM11.8 LTurbocharged & Air-Air Intercooled
SC12E460D2307 kW @ 1500 RPM11.8 LTurbocharged & Air-Air Intercooled
SC12E480D2323 kW @ 1500 RPM11.8 LTurbocharged & Air-Air Intercooled
SC13E500D2339 kW @ 1500 RPM12.8 LTurbocharged & Air-Air Intercooled
SC13E520D2348 kW @ 1500 RPM12.8 LTurbocharged & Air-Air Intercooled
SC13E550D2368 kW @ 1500 RPM12.8 LTurbocharged & Air-Air Intercooled

General Infomation of SDEC-Shanghai Diesel 6ETAA11.8-G22 Generator Drive Engine

Engine Model6ETAA11.8-G22Engine TypeIn-Line,4 Strokes, Water-Cooled,4 Valves
Combustion TypeDirect InjectionDimensions (L * W * H)1787 mm * 918 mm * 1304 mm
Number of Cylinders6Bore * Stroke128 mm * 153 mm 
Displacement11.8 LCompression Ratio17 : 1
Prime Power307 kWStandby Power338 kW
Firing Order1-5-3-6-2-4Injection Timing14.5 °BTDC
Engine Speed1800 RPMDry Weight1164 kg

Performance Data of SDEC-Shanghai Diesel  6ETAA11.8-G22 Generator Drive Engine

Cylinder TypeDry LinerRotationCCW Viewed From Flywheel
Fly Wheel HousingSAE NO.1Fly WheelSAE NO.14
TypeOver Head ValveNumber of ValveIntake 2, Exhaust 2 Per Cylinder
Cold intake  Valve Clearance30.09 kcal/SecHeat Rejection to CAC19.3 kcal/Sec
Engine Waste Heat28.2 m³Exhaust Gas Flow73.3 m³
Exhaust Gas Temp600 °CMax. Permissible Restrictions3 kcal Initial
Intake System (Final)6 kPaExhaust System10 kPa Max.
Intercooler Resistance Limit (Max.)10 kPaAspirationTurbocharged & Air-Air Intercooled

System Technical Data of SDEC-Shanghai Diesel  6ETAA11.8-G22 Generator Engine

Fuel SystemInjection PumpLongkou in-line “P” type
GovernorElectric Type
Feed PumpMechanical Type
Injection NozzleMulti Hole Type
Opening Pressure250 Kg/cm²
Fuel FilterFull Flow, Cartridge Type
Used FuelDiesel Fuel Oil
Lubrication SystemLub. MethodFully Forced Pressure Feed Type
Oil PumpGear Type Driven by Crankshaft
Oil FilterFull Flow, Cartridge Type
Oil Pan CapacityHigh/ Low Level 41 L/33 L
Angularity LimitFront Down 25 °
Front up 35 °
Side to Side 35 °
Lub. OilRefer to Operation Manual
Cooling SystemCooling MethodFresh Water Forced Circulation
Water Capacity23.2 L(Engine Only)
Pressure SystemMax. 0.5 Kg/cm²
Water PumpCentrifugal Type Driven by Belt
Water Pump Capacity618 L/Min. at 1800 RPM/Min.
ThermostatWax–pellet Type
Opening Temp. 85 °C
Full Open Temp. 95 °C
Cooling FanBlower Type, Plastic
843 mm Diameter, 8 Blades
Max. Coolant Temperature at Standby / Prime Power104/100 °C
Electrical SystemCharging Generator28 V * 55 A
Voltage RegulatorBuilt-in Type IC Regulator
Starting Motor24 V * 7.5 kW
Battery Voltage24 V
Battery Capacity180 AH

Coming Soon

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, SDEC producing 12 series generator engines, started from 3.9 liter engine, to 15 liter engine, covering the power range of 125HP to 650HP.
SDEC generator engine customize developing configurations for big vehicle OEMs in China, based on each of requirement, SDEC 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 SDEC, which usually have following accessories as standard configuration.

Scopes of Supply of SDEC Generator Drive Engine

Air Intake System1. Air Intake ManifoldExhuast System1. Exhuast Manifold
2. Standard Air Filter2. Turbocharger
3. Water-Air Intercooler3. Exhuast Elbow
Starting System1. Starter MotorCharging System1. Charging Alternator
2. Starter Rely2. N/A
Lubricating System1. Oil PumpCooling System1. Water Pump
2. Oil Filter2. Engine Fan
3. N/A3. Standard Radiator
Engine Shut-Down System1. Engine Fuel Shut-Off SolenoidPower Output System1. Flywheel
2. N/A2. Standard Flywheel Housing
Fuel System1. Fuel Transfer Pump  
2. High-Pressure Fuel Pump 
3. Fuel Filter 

What's the Available Optional Items?

SDEC 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 SDEC Generator Drive Engine

Air Intake System1. Air Intake Pre-HeaterExhuast System1. Muffler & Bellows
2. Air Intake Shut-Off Valve2. Spark Arrestor Type Muffler & Bellows
3. Heavy-Duty Air Filter3. DPF System
4. Plateau Type Air Filter4. N/A
Fuel System1. Coarse FilterLubricating System1. Oil Pre-Heater
2. Fuel Pre-Heater2. N/A
Starting System1. Manual Magnetic DC ContactorCooling System1. Silent Type Radiator
2. Dual Ears Flywheel Housing2. Plateau Radiator
3. Spring Starter Motor3. Salt-Spray Resistant Radiator
4. Air Starter Motor4. Coolant Pre-Heater
5. Hydraulic Starter Motor5. Jacket Water Heater
6. Manual Magnetic DC Contactor6. N/A

As part of EMAC, SinoGen focusing on generator set related business, from Generator drive engine power pack to complete generator set, from generator control panel to synchronizing cabinet, from super silent type generator set to mobile power trailer, SinoGen provides professional one-stop solution for everything customer needed for generator set.
For more information of our complete generator set products, you are welcome to visit SinoGen homepage:

What's the Modifiable Items and Scopes?

As explained in the standard scopes of supply, SDEC 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 SDEC generator 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 SDEC 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 SDEC generator 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 SDEC engine, the original engine is produced by SDEC, 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 SDEC produced engines. The detailed introduction and replacement process are as below:
Type A: Engine Replacement Requirement (Original Engine is SDEC 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 SDEC 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 SDEC 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 SDEC produced engines, you can refer to our video introduction on Youtube:
We can NOT guarantee the engine produced by SDEC s 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 SDEC 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 SDEC 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 Choose the Right SDEC Generator Engine for You?

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.
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 SDEC Generator Engines!

SDEC 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 SDEC factory swap every 5 years between appointed employee from Dongfeng Motor and Cummins. For more details, you can refer to the company introduction of SDEC 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 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 SDEC Generator Engines?

1: What mean by SDEC?
SDEC is the short name of SDEC Engine Company, take the first letter of each word, it comes with SDEC as short name, for more details about SDEC, you can refer to the company introduction of SDEC 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 SDEC, and we are supplying powertrain and engine power pack based on genuine brand new engines from SDEC 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, 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 SDEC engines, including cylinder block, cylinder head, turbochager, fuel pump, starter motor, alternator, you can collecting the serial number (NOT part number), and then call SDEC 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 SDEC warranty policy, which will update sometimes, you can following us to get the latest warranty policy from SDEC. 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
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.
The picture of Sale Manual showing the accessories and scopes of supply.

Truck Sale Manual

The picture of Installation Drawing showing the accessories and scopes of supply.

Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

The picture of Operation Manual showing the accessories and scopes of supply.

Operation Manual

The picture of Engine Parts Catalogue showing the accessories and scopes of supply.

Parts Catalogue

The picture of Test Report and Certifcate showing the accessories and scopes of supply.

Report & Certifcate

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