Original ALIENTECH KESS V3 KESS3 ECU and TCU Programming Tool Slave/ Master via OBD, Boot and Bench Replaces KESS V2 K-TAG
ALIENTECH KESS V3 ECU and TCU Programmer Multi-language
Get free Alientech Shopping Bag + Keychain + Lanyard for KESS3 new users. Limited offer!!!
KESS3 hardware device does not work without software authorization.
If you do not renew after your subscription expires, you will need to pay for the lapsed period when you resubscribe.
KESS3 is the new Alientech ECU and TCU Programmer via OBD, Bench and Boot Mode all in a single tool.
KESS3 combines 3 operating modes in one tool. OBD, Bench and Boot mode.
OBD - With the OBD mode, you can easily access all the ECU data through the diagnostic socket.
BENCH - A simple interface to the connector and you have complete access to the data of your ECU.
BOOT - This mode allows you to access all system data areas. Read, Write and Clone.
Why buy KESS V3?
A new electronic architecture. 30 years of experience and passion take shape.
Since 1991 Alientech has been designing and developing tools for ECU remapping. Driven by the passion for excellence, Alientech has incorporated all their design experience in this new tool.
The most powerful microprocessor on the market. 7 times more powerful than the previous generation. Pure power that can execute your commands reliably, faster and more efficiently.
KESS3 automatically and instantly recognizes the right communication line, to work faster, using only an OBD cable. Ethernet, FlexRay, CAN Bus, K-Line, L-line, J1850, J1708
GPS, Accelerometer, Bluetooth, and Wi-Fi. All embedded in one platform
The renewed USB Full speed chip allows an up to 10x increase in the performance of importing and exporting files to and from the KESS3
Alientech added a new web infrastructure to the new KESS3, as a result, an Alientech cloud with improved speed and performance.
Supports multi- languages English, Italian, French, German, Spanish, Portuguese, Chinese, Polish, Russian.
Supports Datalogger feature

KESS3 combines 3 operating modes in one tool. OBD, Bench and Boot mode.
OBD - With the OBD mode, you can easily access all the ECU data through the diagnostic socket.
BENCH - A simple interface to the connector and you have complete access to the data of your ECU.
BOOT - This mode allows you to access all system data areas. Read, Write and Clone.

KESS3 advantages:
Notice:
*One-year hardware warranty , no returns or exchanges.
*For any product questions, you can contact the official website technology directly.
*If buy the device from us, you can only activate license/sub. from us. You cannot buy license from other distributors. Vise versa.
*When the subscription expires, your tool still works. But without the latest software updates and online support from Alientech.
Licensing
When purchasing the device, at least one software protocol is required. The basic version cannot function without licenses and is not sold separately! Upon purchasing a protocol you will recieve software updates and free technical support and for a year. In the future, the subscription is renewed for an annual fee.
License you can buy:( You need buy any of those license to works together with your KESS V3 hardware. If you need buy more than one license, you can contact our customer service to get discounts)
DynoDrive Activation DynoDrive Activation KESS3MKWO For Alientech KESS3 Master / KESS3 Slave / KESS3 Hardware

Bundle Package:
SE178+XNR-SS451-MA005 KESS3 Master Version with Car Bench-Boot LCV Protocol Activation
SE178+XNR-SS451-SA001+XNR-SS451-SA005 KESS3 Slave Version with Car OBD-Bench-Boot LCV Protocol Authorization
XNR-SS451-MA001+XNR-SS451-MA005 Car OBD + Car Bench Boot Activation for KESS3 Master Version (New Users)
SE178+XNR-SS451-MA001+XNR-SS451-MA005 KESS3 Master Version with Car OBD-Bench-Boot LCV Protocol Authorization
SE178+XNR-SS481 KESS3 with DynoDrive Activation
KESS3 Master vs Slave Version
As a Master user, you can read the files in clear. This allows you to operate independently in order to remap and reprogram the ECU with modified files.
As a Slave user, only your master will be able to decrypt your files. (Recommended choice for taking the first steps in chiptuning, supported by your Master)
THE CPU
The most powerful microprocessor on the market. 7 times more powerful than the previous generation. Pure power that can execute your commands reliably, faster and more efficiently.
LINES OF COMMUNICATION
KESS3 automatically and instantly recognizes the right communication line, to work faster, using only an OBD cable. Ethernet, FlexRay, CAN Bus, K-Line, L-line, J1850, J1708.
All the essential lines to start any operation inside the vehicle in total safety.
PROJECTED TOWARDS THE FUTURE.
GPS, Accelerometer, Bluetooth, and Wi-Fi. All embedded in one platform.
The combination of these features and the constant technological developments that distinguish us will allow us to develop many new functions in the future.
PERFORMANCE
The renewed USB Full speed chip allows an up to 10x increase in the performance of importing and exporting files to and from the KESS3.
But not only that, Alientech added a new web infrastructure to the new KESS3.
The result being, an Alientech cloud with improved speed and performance.
Resilience and Durability for your workshop.
KESS3 case design is completely new. Alientech has provided added value by researching and incorporating the best usable materials. Designed to offer you versatile and rugged mobility, thanks to the durability of the materials. KESS3 is built around a fiberglass shell which gives it lightness and flexibility. An ergonomic shell, resistant to shocks and vibrations.
An exceptionally strong tool that can be taken anywhere.
Alientech Suite – NEW Software.
Such an advanced new hardware inspired Alientech to design software that would take full advantage of its potential. A completely redesigned and new operating suite, in design and architecture.
NEW DESIGN
New look, clean design, everything you need at your fingertips. Updated regularly to be functional, usable and easy.
USER EXPERIENCE
A completely renewed UX. An intuitive dashboard with improved access to the vehicle list with the ability to create a list of favorite vehicles and a view of the history of vehicles already interfaced.
COMPATIBILITY LIST
List of protocols and vehicles updated daily and always available online www.alientech-tools.com/vehicles. Technical instruction available in multi-language to support users during the most complex operations.
PERFORMANCE
The new interactive "search" function will allow you to access the vehicle list or search for the microprocessor of your ECU in a few seconds.
Downloading and updating the list are now instant.
SUPPORT
Direct access to the Alientech help desk and all development news.
Personalize your custom KESS3.
Alientech gives a flexible solution that best suits your business requirements. You can choose the right configuration for you, based on your job today or what you may require tomorrow.
VERSIONS: Master or Slave according to your needs.
TYPE OF VEHICLES: Communication protocols divided into packages by type of vehicle.
Choose from the Car, Motorcycle, Truck / Tractor and Marine world packages.
COMMUNICATION METHODS: OBD, BOOT and BENCH connection from KESS3 to the control unit.
KESS V3 Interface
Compatible operating systems
Optional System Requirements
Alientech Srl does not guarantee the correct functioning of the software on operating systems that are not indicated in the table above.
Environmental conditions
Alientech Suite – NEW Software.
Such an advanced new hardware inspired Alientech to design software that would take full advantage of its potential. A completely redesigned and new operating suite, in design and architecture.
Advantages:
NEW DESIGN
New look, clean design, everything you need at your fingertips. Updated regularly to be functional, usable and easy.
USER EXPERIENCE
A completely renewed UX. An intuitive dashboard with improved access to the vehicle list with the ability to create a list of favorite vehicles and a view of the history of vehicles already interfaced.
COMPATIBILITY LIST
List of protocols and vehicles updated daily and always available online www.alientech-tools.com/vehicles. Technical instruction available in multi-language to support users during the most complex operations.
PERFORMANCE
The new interactive "search" function will allow you to access the vehicle list or search for the microprocessor of your ECU in a few seconds.
Downloading and updating the list are now instant.
SUPPORT
Direct access to the Alientech help desk and all development news.

Personalize your custom KESS V3.
Alientech gives a flexible solution that best suits your business requirements. You can choose the right configuration for you, based on your job today or what you may require tomorrow.
VERSIONS: Master or Slave according to your needs.
TYPE OF VEHICLES: Communication protocols divided into packages by type of vehicle.
Choose from the Car, Motorcycle, Truck / Tractor and Marine world packages.
COMMUNICATION METHODS: OBD, BOOT and BENCH connection from KESS3 to the control unit.
KESS3 Update Log:
NEW FEATURE NOW AVAILABE KESS V3 DATALOGGER
From today, you can see what the engine is really doing in real driving conditions.
Monitor ECU parameters in real time via OBD, select the signals you need, and analyse them with precision. All data is automatically stored in the Dashboard, ready to be reviewed, compared, or shared.
✅ Up to 5 parameters monitored simultaneously
✅ Numerical and graphical data visualisation
✅ Thresholds and markers during the test
✅ Repeatable tests thanks to integrated GPS (position, speed, altitude)
✅ Already included in your KESS3 subscription
No additional tools required. Just connect and start testing.
Discover how DataLogger works on blog
KESS3 Update Log:
🚀 𝗡𝗲𝘄 𝗕𝗘𝗡𝗖𝗛 𝗽𝗿𝗼𝘁𝗼𝗰𝗼𝗹𝘀 𝗳𝗼𝗿 𝗕𝗼𝘀𝗰𝗵 𝗠𝗗𝟭 𝗮𝗻𝗱 𝗠𝗚𝟭 “𝗟𝗼𝗰𝗸𝗲𝗱” 𝗘𝗖𝗨𝘀 𝘄𝗶𝘁𝗵 𝗞𝗘𝗦𝗦𝟯.
The Bosch MD1CP032, MD1CS001, MG1CS024, MG1CS049 and MG1CS201 ECUs fitted to recent BMW and Mini applications can now be managed directly in BENCH through dedicated KESS3 protocols.
✅ Work directly from the ECU connector without opening it on “Locked” ECUs.
✅ Greater operational safety on latest-generation DDE8 and DME8 ECUs.
✅ More opportunities to work on recent and high-performance BMW and Mini vehicles.
Mar. 2026
Update Bench protocol for Ford Continental SID212 ECUs.
Jan. 2026
Adds GM AC Delco E84 ECM on bench mode.
Adds GM Delco E67 ECM in Boot mode.
Adds Ford EMS2910 / EMS2916 ECUs via OBD.
Dec. 2025
Adds Ford Ford Ranger, Transit, Transit Custom, Volkswagen Amarok 2022- SID213 ECU via OBD.
Nov. 2025
Adds Renault, Nissan, Opel Continental Vitesco SID321 ECU via OBD, Bench or boot.
Adds 2017 up Ford Bosch MD1CS005,MD1CP006, MD1CP061, MD1CP062, MD1CS025,MD1CS027,MG1CS016 GEN II,MG1CS040, MG1CS055,MG1CS060 ECUs via OBD.
Sep. 2025
Adds VW Audi Continental Simos 19.3 and Simos 19.6 ECUs via OBD on the newest 2.0 TSI and TFSI engines (2018-2025).
Aug. 2025
Adds Porsche ZF PDK2 2018 to 2025 protocol in boot mode.
Adds Skoda and Volkswagen 1.0/1.5 MP1 2018- MG1CA811 ECU on bench mode.
April 2025
Support for ZF8HP55, 7DCT300, and VGS-NAG3 TCU on bench.
March. 2025
Adds Renault/ Dacia/ Nissan/ Mitsubishi Continental ECUs EMS3140, EMS3141, EMS3161 (2016–2024) Read and write via OBD & BENCH.
Add VAG 2019-2025 VAG Bosch MD1CS004 ECU via OBD VR.
Dec. 2024
Add Opel, Nissan, Renault Continental Vitesco SID321 ECU (OBD and Bench mode)
Nov. 2024 Adds following ECU/TCU
• Denso GEN IV R7F702002 V35A-FTS
• Bosch EDC17C69
• Delco E78, E80, E98
• Bosch MED17.8.10
• Hitachi BED500-310
• Siemens D32
• Denso N3S2
• Mitsubishi PAH9, PV10, PYFA
• Bosch EDC16C34
• Denso 33920-78LJ, 33920-62S0
• Continental P05150 6F24
• Temic MPS6 Gen III
• Bosch ZF8HP50
V2.09
Adds Delphi DCM3.7AP and Bosch EDC17C81 ECUs from Yale and Hatz vehicles.
Adds JCB – Bosch DCU17CV51.
V2.05
Free update DTC feature
WHAT ARE THE KEY POINTS OF THE NEW DTC FEATURE?
V2.00
Adds Ford Bosch DCU17PC43 ECUs reading and writing via OBD
V1.98
Adds Benz Siemens SIM4LKE and Ford Siemens EMS2214 reading, writing and cloning in boot mode
V1.96
Work in ‘BOOT mode’ for tuning and cloning the Delphi DCM7.24 ECUs for the JCB brand.
V1.95
Read, write, and clone directly from the ECU connector of the Denso 112731-5040 and Denso 33910-79JX/57KX ECUs equipped on the most popular models of the Subaru and Suzuki range.
V1.90
Bench remaps on several Benelli, CF Moto, Honda, Kawasaki, Suzuki and Yamaha motorbikes.
Effectively work on Mitsubishi 21175-1124/1125, Denso 32910-10LXX, Denso BXX-8591A-XX, Keihin 38770-MXX, Keihin 38770-MXX-AXX-DXX, Mitsubishi F8T9647X, Denso 32920-41GXX and Delphi MT05.3 ECUs. Create your business in the performance field and beyond, by working all round on the management file of the new supported ECUs.
V1.88
Adds Bosch MG1UA008, Bosch MD1CS018, Bosch EDC17C69, Bosch MEG17.9.77, Bosch ME17.9.21.1, Bosch MG1US008, Bosch MED17.8.21, and Bosch ME17.9.56 ECUs on bench.
V1.87
Reprogram on bench the new heavy-duty vehicles supported, brandded Doosan, Mahindra, Shacman, Volkswagen and Yutong.
Increase your workshop's earning potential in the heavy-duty vehicle field with a comprehensive cloning service on Bosch DCU15C167 installed on Yutong trucks, as well as Continental SID605 ECUs managing Weichai engines of Doosan and Shacman vehicles. Also, work in 'BENCH mode' on Bosch EDC16C8 ECUs equipped on Volkswagen Trucks, and Bosch MD1CC898 fitted on the latest Mahindra trucks.
V1.82
Reprogram via OBD on some models within the Suzuki range with the Bosch MED17.9.63 engine control unit.
V1.81
Work with BENCH and BOOT modes to meet the demands of your customers for compact Bobcat S76 with Bosch EDC17C87 ECU and off-highway JCB Backhoe Loaders with Delphi DCM3.3+ control unit. Repair and optimize the performance of these engines comprehensively, with a focus on fuel consumption reduction. Choose KESS3 with activation for Truck/Tractor BENCH and BOOT protocols and increase your earnings by expanding your business.
Newly supported control units:
Bosch EDC17C87
Delphi DCM3.3+
Ktag vs Kess V2 vs Kess V3

KESS V3 Interface
Compatible operating systems
Optional System Requirements
Alientech Srl does not guarantee the correct functioning of the software on operating systems that are not indicated in the table above.
Environmental conditions
Package List:
1PC x Alientech KESS3 Programmer
1PC x USB cable
1PC x The new generation OBD cable
1PC x 1400SWALIM power supply
1PC x 144300TALI cable
1PC x 144300KBNC Cable
1PC x 144300KTER Pack
1PC x 144300T104 Cable
1PC x 144300T105 Cable
1PC x 144300T106 Cable
KESS3 FAQs:
Q: What is the difference betwwen Master and Slave?
A: As a Master user, you can read the files in clear. This allows you to operate independently in order to remap and reprogram the ECU with modified files. As a slave user, only your master will be able to decrypt your files. (Recommended choice for taking the first steps in chiptuning, supported by your Master)
Q: What types of vehicles are supported?
A Alientech supports hundreds of thousands of vehicles. Not only engine control units, but also transmission control units equipped on cars, motorcycles, tractors, trucks and boats. To know all the vehicles that Alientech supports, you can easily consult our vehicle list.
Q: Old Kess v2/ktag accessroies compatible with KESS3?
A: Yes.
Q: Can I update slave version to Master version?
A: Yes, just for pay the price difference to get it updated.
Q: Can I downgrade master version to salve version?
A: Yes, The price difference of the equipment will not be compensated
Q: Can i use the tool if subscription expires?
A: Yes, When the subscription runs out, the customer can keep working with his KESS3 and he will have access to all the protocols he had until its expiration date, except VR ones.
Moreover, he won't have access to:
- technical assistance
- VR function
- Cloning
- All the online services such as ORI file download.
Q: How to check device serial number?
A: SN is on the back of the kess3 unit, or check in AlienSuite software.
Q: Can i activate master license and slave license to the same device?
A: No, you cannot.
Q: Can I unbind license if i purchase kess3 from othe dealer, then purchase license from you?
A: No possible to unbind device no matter where you buy the machine.
Q: If my subscription expires on 1 dec, 23, I don't renew it until 1 March 24, when does the new subscription expire?
A: From day it ran out.
Q: If when my master kess3 subscription is due in Dec, 24th, 2023 and l decide not to carry on paying. Can i have all the protocol updates if I pay for the subscription 6 month later?
A: Yes, you will have all protocols from expiry to renewal period.

About Delivery
EU Warehouse Shipping(No Tax): 3-5 working days. We have stocked up hot sale items in EU(Czech) Warehouse ,which is more convenient for you. Free TAX, faster shipping with cheaper price.
Yanwen Express(No Tax): 8-12 working days ,we will prepay the tax,then do not need customers to pay tax for most european counties 【We will send by Yanwen Express by default(for the items not in stock in EU)because of EU high Customs tax. If Customers need the faster DHL shipping method and willing to pay the high tax .Pleasee leave message to us in time after placing the order】
DHL/UPS/Fedex Shipping: 3-5 working days, to help you clearance we will help declare price on the invoice. If address is remote area, customer need pay remote freight or we will ship by Normal Post or Yanwen Express.
Note:
1.All of the items will be shipped to PAYPAL Shipping Address,please confirm your address on PAYPAL before you buy.
2.Your order will be usually shipped out the same or next business days once the payment is made, except on weekends and holidays.
Contact information: