Original ALIENTECH KESS V3 ECU Programming Tool
-
Express Estimated Delivery:Jun 18 - Jun 22
-
Free Shipping Method: Estimate dilevery 8-19 business days
Guarantee safe & secure checkout
Original ALIENTECH KESS V3 ECU Programming Tool
The Newest ALIENTECH ECU Tuning Tool Replaces KESS V2 & K-TAG
ALIENTECH KESS V3 can be activated as either a Master or a Slave tuning tuning system, offering both OBD tuning and the option for Boot and Bench tuning.
Note: The hardware does not come with any software and cannot perform any functions. You need to purchase the Protocol to support it.

KESS V3 Product Description:
KESS3 gives you more control than its predecessors, KESSv2 and K-TAG, and can be upgraded without the need to spend money on new hardware. This new tool allows users to remap in a faster, easier way than ever before, with the ability to use both OBD or Bench Tuning methods from the same device. You no longer need separate tools for OBD and Bench Tuning. With the new KESS3, this is now a combined feature.
ALIENTECH KESS V3 ECU and TCU Programmer:
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.

ALIENTECH KESS V3 Features:
1. OBD Tuning
2. Bench/Boot Tuning
3. Upgradable from Slave to Master
4. Separate Car & Bike Protocols
5. Works with some existing KESSv2 cables
6. Uses Alientech Suite
7. Upgraded Cable Set
8. Superfast Checksum Calculations
9. 10x Faster Processing
ALIENTECH KESS V3 Advantages:
- 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.
- Multi-language: English, Italian, French, German, Spanish, Portuguese, Chinese, Polish, Russian.
- Check KESS3 Vehicle List

Note:
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.
KESS3 Master Protocol Activations:
KESS3 Master --Car -- LCV OBD Protocols activation
KESS3 Master --Bike --ATV & UTV OBD Protocols activation
KESS 3 Master --Agriculture --Truck & Buses OBD Protocols activation
KESS3 Master --Marine & PWC OBD Protocols activation
KESS 3 Master --Car --LCV Bench-Boot Protocols activation
KESS3 Master --Bike --ATV & UTV 8ench-Boot Protocols activation
KESS 3 Master --Agriculture --Truck & 8uses aench-aoot Protocols activation
KESS3 Master --Marine & PWC Bench-Boot Protocols activation
KESS3 Master --12 Months Subscnption
KESS3 Master --6 Months Subscription
KESS3 Slave Protocol activations:
KESS3 Slave --Car --LCV OBD Protocols activation
KESS3 Slave --Bike --ATV & LJTV OBD Protocols activation
KESS 3 Slave --Agriculture --Truck & Buses OBD Protocols activation
KESS3 Slave --Marine & PWC OBD Protocols activation
KESS 3 Slave --Car --LCV Bench-Boot Protocols activation
KESS 3 Slave --Bike --ATV & LITV Bench-Boot Protocols activation
KESS3 Slave --Agriculture --Truck & Buses Bench-Boot Protocols activation
KESS 3 Slave --Marine & PWC Bench-Boot Protocols actlvation
KESS 3 Slave --12 Months Subscription
KESS 3 Slave --6 Months Subscription
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. KESS 3 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.

Innovative Design
lientech 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.
Ktag vs KESS V2 vs KESS V3:

KESS V3 Interface:
- DB25 connector
- Tyco 12 connector
- USB 2.0 type B connector
KESS V3 Compatible operating systems:
- 32-bit or 64-bit editions of Windows 11 and Windows 10
- RAM: 1 gigabyte (GB) for 32-bit OS or 2 GB for 64-bit OS
- Processor: 1 gigahertz (GHz) or faster
- Hard disk space: 200 MB
- 1 USB port
- Microsoft® Edge®
- Active Internet connection
KESS V3 Optional System Requirements:
- Bluetooth V4.2 BR/EDR and Bluetooth LE
- Wi-Fi 802.11b/g/n
Alientech Srl does not guarantee the correct functioning of the software on operating systems that are not indicated in the table above.
KESS V3 Environmental conditions:
- Temperature range of us: -10°C/+50°C – 14°F/122°F
- Storage temperature rang: -20°C/+70°C – -4°F/158°F
- Maximum usage humidit: 60%
- Operating altitude: max. 5000 m/16400ft
- Degree of waterproofin: IP X0
KESS V3 Packing List:
- KESS3
- USB cable
- The new generation OBD cable
- 1400SWALIM power supply
- 144300TALI Cable
- 144300KBNC Cable
- 144300KTER Pack
- 144300T104 Rainbow Cable IDC 26-10
- 144300T105 Rainbow Cable IDC 26-16
- 144300T106 Rainbow Cable IDC 26-26
Notice:
One-year hardware warranty , no returns or exchanges.
FAQ:
Q1: What is the difference betwwen Master and Slave?
A1: As a Master user, you can read the files in clear. This allows you to operate independently 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)
Q2: What types of vehicles are supported?
A2: 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.
Q3; Old Kess v2/ktag accessroies compatible with KESS3?
A3: Yes.
Q4: Can I update slave version to Master version?
A4: Yes, just for pay the price difference to get it updated.
Q5: Can I downgrade master version to salve version?
A5: Yes, The price difference of the equipment will not be compensated.
Q6: Can i use the tool if subscription expires?
A6: 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.
Q7: How to check device serial number?
A7:SN is on the back of the kess3 unit, or check in AlienSuite software.
Q8: Can i activate master license and slave license to the same device?
A8: No, you cannot.
Q9: Can I unbind license if i purchase kess3 from othe dealer, then purchase license from you?
A9: No possible to unbind device no matter where you buy the machine.
Q10: If my subscription expires on 1 Dec, 23, I don't renew it until 1 March 24, when does the new subscription expire?
A10: From day it ran out.
Q11: 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?
A11: Yes, you will have all protocols from expiry to renewal period.
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
Package will ship out within 48 hours after payment receive usual, if there is some acceident, we will inform you by order contact information.
VXDAS Policy
Kindly note: Before returning items to us, please read and follow the instructions below. You can also contact our Customer Service, we will be glad to help you. Please make sure that you understand our policy and ensure that all criteria are met before physically sending any items back to us.
1. Return Policy
What Situation VXDAS Provides Return Policy?
- Mis-Ordered Products: If you ordered the wrong item by mistake and need to exchange it for the correct one, you can return it. However, you must bear the shipping costs for both sending the item back to us and the freight for shipping the new item back to you.
- Quality Issues: If our products do not work well upon arrival or suffer damage during delivery, our return policy will apply—provided that the issue is verified by our technical team.
- Non-Quality Issues (Change of Mind): In particular situations, after our customer service reviews your case, a return may be accepted. Under this condition, we will deduct the original shipping fee PLUS a 15% restocking fee from your final refund.
What Situation VXDAS DOES NOT Provide Return Policy?
We strictly DO NOT accept returns or exchanges under the following conditions:
- Failure to Provide Proof: The customer is unable or refuses to provide clear pictures of the product issue and a short video showing their operation.
- Refusal to Cooperate: The customer refuses to cooperate with our technical support team for a remote check (via TeamViewer or AnyDesk) to verify the problem.
- Unauthorized Disassembly (Anti-Tampering Rule): The device housing has been opened, unscrewed, or dismantled by the customer without our official tech team's written permission.
- Man-Made Damage: The item is damaged due to improper personal use, physical drops, or incorrect installation.
What if a Customer Insists on Returning the Item Anyway?
If a customer refuses to cooperate with our technical verification process but insists on shipping the item back without our official return authorization:
- All Costs on Customer: The customer must fully bear the return shipping fee AND any customs clearance fees/import duties incurred when the parcel arrives at our warehouse. VXDAS will not pay for any customs-due parcels.
- Strict Deduction: We will only process a refund AFTER we receive the complete package in its original, undamaged sealed packaging. From the final refund, we will strictly deduct the original shipping postage fee PLUS a 15% restocking fee.
How to Return Items to VXDAS? (With Authorization)
After all details are confirmed and a return is officially agreed upon by VXDAS sales, please follow this process:
- Return Shipping Method: VXDAS strongly recommends using Registered Mail , EMS, DHL, UPS or FEDEX to return the parcel. Please only send it to the shipping address provided by our Customer Service. Without our prior permission, we are not responsible for parcels lost or rejected through unapproved express couriers.
- Return Shipping Window: All returns for a refund or exchange must be completed within 14 days of receiving our official return authorization. You must ship the item out and provide the return tracking number with shipping invoice details to your VXDAS sales representative.
2. Refund Policy (Including Order Cancellation)
You can apply for a refund within 14 days from the date you received the goods. The detailed rules are as follows:
What Situation VXDAS Provides Refund Policy?
- Cancel the Order Before Shipping (Personal Reasons): If you request to cancel your order within 12 hours of placing it and before it has been shipped, a 5% processing fee will be deducted from your total refund to cover payment gateway transaction fees and handling costs.
- Cancel the Order After Shipping (In Transit or Delivered): If you request a cancellation or return after the package has been shipped, you are responsible for the return process. We will deduct the original shipping postage fee PLUS a 15% restocking fee from your final refund. The item must be returned 100% unopened and in its original sealed packaging.
-
Technical & Quality Issues (Mandatory Verification): Automotive diagnostic tools involve professional hardware and complex software environments. If you report a quality defect or a technical issue, you MUST follow our verification process:
- Proof Required: You MUST provide clear photos of the error message and a short operation video showing how you connected and operated the device. (Product S/N is not required).
- Remote Inspection: You MUST cooperate with our technical support team for a remote check (via TeamViewer). Our technicians must officially inspect and confirm the issue remotely before any return or refund can be authorized.
- Return Shipping for Quality Issues: If our technical team confirms a hardware or software defect via photos/video/remote check and it cannot be fixed, we will fully cover the return shipping cost. If you refuse to provide photos/videos or decline the remote technical inspection, your request will automatically be processed as a "Change of Mind" (personal reason) return, meaning you must pay for the return shipping yourself.
- Stock Issues: If a product is out of stock, we will email you to check if you prefer an exchange or a full refund.
- Lost in Transit: If the shipping company confirms the product is lost in transit, we will provide a full refund or resend a new item.
What Situation VXDAS DOES NOT Provide Refund Policy?
- The customer has received the goods for over 14 business days.
- Any Voided Warranty Cases: Items that have been privately disassembled, opened, or altered by the user without our consent are strictly excluded from any refund.
- Special Products/Services: Some products or services are strictly non-refundable once provided. This includes software download links, software installation services, and account/token activation services.
When Can You Get the Refund?
Usually, we will only issue the refund after the returned item is received and inspected by our warehouse (within 2-3 business days). If the returned product is opened, used, damaged, or shows signs of self-disassembly, corresponding damage costs will be deducted, or the refund request may be rejected entirely. Once approved, the refund will be processed back to your original payment method within 7 business days.
3. Repair Policy
In-Warranty Period (1-Year Warranty)
Most diagnostic tools and software from VXDAS come with a 1-year warranty, free repair, and 1-year free updates during the warranty period.
- How to claim: You must first provide your order number, problem pictures, and operation videos to our customer service technicians to confirm the problem. If the problem cannot be solved remotely, we will guide you on how to send the product back for repair.
- Shipping Fees: You will bear the shipping cost of sending the tool to VXDAS. Once the repair is completed and tested, VXDAS will bear the shipping cost to send it back to you.
Out-of-Warranty Period
Products purchased over 1 year ago or items with man-made damage (due to improper use) are out of warranty. A repair fee and return shipping fee will apply. Please consult our sales staff regarding specific maintenance costs before sending items back.
4. Warranty Policy
- One-Year Quality Warranty: All diagnostic tools and software from VXDAS include a one-year quality warranty period. (Note: 1-time remote service or customized services are not covered. Some specific brand products enjoy a 2-year warranty).
- Strict Quality Control: Before shipping, all goods are rigorously tested by vxdas.com engineers. We check basic hardware/software functions, appearance, packaging, accessories, and power adapter standards to ensure full functionality.
- Exceptions: This warranty policy applies to all items except those that explicitly state "No Warranty" in their product descriptions (such as certain chips or single-use components).
🚨 What Voids the Warranty Automatically? (Void Warranty Scope)
To protect our brand and coordinate with original factory policies, the standard 1-year warranty will be instantly and permanently voided if the device falls under any of the following scenarios:
- Unauthorized Disassembly: If the customer opens, unscrews, dismantles, the internal hardware board of the device by themselves without our written permission. (Most units contain anti-tamper warranty stickers; broken seals will result in immediate warranty termination).
- Wearable Consumables: Main test cables, OBD2 adapters, and power cords are subject to daily wear and tear. These accessories are covered under a 30-day arrival-defect warranty and are excluded from the 1-year main unit warranty.
- End-of-Life (Discontinued) Models: If a model has been officially discontinued and the manufacturing factory has permanently closed its production line, we will no longer have access to original spare parts. Hardware repair will not be supported for these models, though software support will remain accessible whenever available.
- Fatal Hardware Failure (Main Chip Damage): If the device's main IC/CPU chip is permanently burned, cracked, or short-circuited (often caused by vehicle voltage surges, improper power input, or unapproved firmware modifications), the hardware is physically irreparable.
Note: For voided warranty or out-of-warranty cases, VXDAS will gladly offer an exclusive loyalty discount or a cost-price hardware replacement scheme to help you upgrade to a functional device smoothly. Please consult our support team for details.
5. Governing Law & Business Entity
This Agreement shall be governed by the laws of Hong Kong, together with all other applicable local laws relevant to the merchant’s operations. This includes, without limitation, the laws of the merchant’s place of business registration (CO), the jurisdictions in which the merchant conducts business activities, the locations where customers or cardholders are situated, and any legal or regulatory requirements applicable to our acquiring partners, payment processors, and service providers. All governing laws shall apply without regard to any conflict-of-law principles.
KEY STONE COMMERCE GROUP LIMITED
LIVEN HOUSE, 61-63 KING YIP ST, KWUN TONG, KL
📌 IMPORTANT PURCHASE NOTICE – MUST READ BEFORE BUYING
To ensure a smooth setup and avoid any installation compliance issues, please review the following technical requirements for our professional diagnostic tool:
- Antivirus Compatibility (False Positives): > Because most aftermarket diagnostic software utilizes deep-system emulation to interface directly with your vehicle’s ECU, strict security tools (like Windows Defender) will frequently flag it as a threat. This is a standard false positive. For successful installation, the software must be added to your antivirus "Exclusion List" or the antivirus temporarily disabled during use. If you are uncomfortable with this standard protocol, please consider alternative options.
- Pre-Installed Software Activation Required: > If your package includes a pre-installed hard drive (HDD/SSD), the system and diagnostic software are securely locked for transit and require activation before first use. Upon receiving your package, please contact our support team immediately to get remote activation service. It is not defective; it simply requires a 5-minute initial unlock.
- HDD/SSD Compatibility & Restrictions (Except SKU: DS036): > Please note that ALL our software hard drives are designed as internal drives and CANNOT be used via a external USB enclosure, with the sole exception of SKU: DS036(Alldat* software). Before purchasing, please ensure the physical size and interface (e.g., 2.5" SATA) of our drive are fully compatible with your laptop's internal slot. If you are unsure about compatibility, please contact our customer support before buying.
- Pre-installed software HDD/SSD Warranty Void Policy: > Our pre-installed software contains encrypted configurations. Any attempt to duplicate, clone, or copy the files from our hard drive to another device will permanently lock the software and instantly VOID your product warranty. We do not provide after-sales support or refunds for drives that have been privately copied.
- Professional Remote Tech Support (Optional & Secure): > Automotive diagnostic software setup can be complex. We offer 100% free, secure remote technical assistance via TeamViewer to help you configure the system. This service is entirely optional. We respect your data privacy and will only perform necessary software configurations with your permission.