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ALIENTECH KESS3 | Master Version

Kess 3 Alientech
Kess 3 Alientech
Kess 3 Alientech
Kess 3 Alientech
Kess 3 Alientech
Kess 3 Alientech
ALIENTECH KESS3 | Master Version
  • KESS 3 combines 3 operating modes in a single device.
  • Choose Master Tool which is best for you.
  • OBD, Bench & Boot Mode. Configure it according to your requirements and work.
  • Initialize your KESS3 as required by choosing your vehicles of interest and exploring all the possible configurations
  • Ideal product arrangement, everything is exactly where it needs to be. High security, because your business must never stop.


  • Stock: In Stock

Available Options

KESS3 - ECU and TCU programming via OBD, boot and bench.

The KESS3 has designed to provide a quick and easy interface to any engine control unit and automatic transmission on the market, from young engine enthusiasts to the most specialized mechatronics technicians.

Perfect performance, high operational flexibility and ease of use allow motors and gearbox control units to be connected in one tool.

All in One.
OBD, Bench and Boot mode.

KESS3 combines 3 operating modes in one tool. OBD, Bench and Boot Mode.

Configure it according to your needs and your work. Whatever your level and experience in remapping, KESS3 gives you the best.

Renewed achitecture

Every aspect of KESS3 is carefully designed to achieve performance, operational flexibility, and ease of use.

Its renewed architecture exploits the full potential of each component.

Innovative Design

KESS3 case design is completely new.

Alientech has provided added value by researching and incorporating the best usable materials.

Alientech Suite

Such advanced new hardware inspired us to design software that would take full advantage of its potential.

A completely redesigned and new suite, in design and architecture

  • OBD Mode. With the OBD mode, you can easily access all the ECU data through the diagnostic socket.
  • BENCH mode is a simple interface for logging in, and you have full access to your ECU data.
  • BOOT mode – This mode allows access to all areas of system data. Read, write and clone.
  • Configure KESS3 to suit your needs and your work. Regardless of your level and experience, KESS3 gives you the best experience in engine programming.



KESS3 does not travel alone, not only the instrument, but also all the basic accessories you need to work.

  • USB cable, needed to interface with the KESS3 instrument through the PC
  • The new generation OBD cable that integrates all the communication lines used by the various car manufacturers; this cable, therefore, replaces various wirings that were used by KESSv2; more specifically, it is also able to communicate with Honda, Volvo, Lotus and Toyota.
  • 1400SWALIM power supply, capable of providing sufficient current and voltage to communicate with the electronic control units, in a stable and safe way.
  • 144300TALI cable, to power the instrument using a bench power supply (the power supply, on the other hand, is sold separately)
  • 144300KBNC cable to communicate with the control units directly on the bench
  • 144300KTER pack which contains all the cables useful for connection in BENCH or BOOT mode. (extender).
  • 144300T104 rainbow cable IDC 26-10 consisting of 10 wires, used to connect directly to the electronic board of the control unit.
  • 144300T105 rainbow cable IDC 26-16 composed of 16 wires, used to connect directly to the electronic board of the control unit.
  • 144300T106 rainbow cable IDC 26-26 consisting of 26 wires, used to connect directly to the electronic board of the control unit.

Renewed architecture

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.
Every aspect of KESS3 is carefully designed to achieve performance, operational flexibility, and ease of use.
Its renewed architecture exploits the full potential of each component.
New microprocessor, latest generation I/O interfaces, new built-in sensors and high-performance EEPROM and FLASH memories are the main features of KESS3

The most powerful microprocessor on the market. 7 times more powerful than previous generations. Pure power that can execute commands more 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.

All the essential lines to start any operation inside the vehicle in total safety.


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.



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.

1. How can I interface and program the control units?

With KESS3 you can program the engine control units (ECU) or transmission control unit (TCU) in three different ways:
OBD - With the OBD mode, you can easily access all the ECU data through the diagnostic socket.
BENCH - With the Bench mode you can access the ECU data directly from the connector
BOOT - With Boot mode, with the engine control unit opened, you could connect directly to all the memories of ECU/TCU.

2. What is the difference between Master and Slave?

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)

3. What types of vehicles are supported?

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 vehicle list.

4. I own KESSv2 / K-TAG. How can I get KESS3?

For all our customers who own a KESSv2 or K-TAG product we have created an trade-in program for your instruments. By choosing to replace KESSv2 and / or K-TAG, you will get a discount on the value of your new KESS3 configuration. Discover the discount reserved for you.

5.I am a KESSv2 / K-TAG customer, but the subscription has expired. Can I get the new tool?

Yes, even for you, during the trade-in phase there is an enhancement of the instrument regardless of the validity of your instrument. 

6. Are my old KESSv2 / K-TAG accessories compatible with KESS3?

YES. All KESSV2 or K-TAG accessories are and will be compatible with KESS3.

7. I own KESSv2 / K-TAG. I have no plans to migrate to KESS3. Can I continue to use my tools?

Yes. Alientech will continue to release regular updates to the K-Suite software, but will not allow subscription renewals. Software updates, new protocols and support will be available until your subscription expires.

8. I own KESSv2 / K-TAG. Is there an operating deadline?

The K-suite software and the all related services and infrastructures will continue to be updated and totally functional. After your subscription will be expired, it will no longer be possible to download new protocols

KESS3MA001KESS3 Master -Car -LCV OBD Protocol activation
KESS3MA002KESS3 Master -Bike -ATV & UTV OBD Protocol activation
KESS3MA003KESS3 Master -Agriculture -Truck & Buses OBD Protocol activation
KESS3MA004KESS3 Master -Marine & PWC OBD Protocol activation
KESS3MA005KESS3 Master -Car –LCV Bench-Boot Protocol activation
KESS3MA006KESS3 Master -Bike -ATV & UTV Bench-Boot Protocol activation
KESS3MA007KESS3 Master -Agriculture -Truck & Buses Bench-Boot Protocol activation
KESS3MA008KESS3 Master -Marine & PWC Bench-Boot Protocol activation


All the activations on a new hardware include 12 months of subscription.
All the activations added to an already configured hardware will inherit the same expiry date of the existing activation.