AT-K3M-TOOLHardware
Alientech KESS3 Master tool (hardware)
KESS3 – The tool for remapping.
The most complete and operational configuration. You have full control over calibrations: you read, modify and write files independently, and you can create your own network of KESS3 Slaves.
Protocol activations are sold separately: the tool works with at least one protocol package or DynoDrive.
Prices exclude VAT
Manufacturer price (Alientech) checked live: 29/10/2026, 19:42
Available now (delivery in 2–3 business days via direct shipping)
Please choose first: Operating mode
KESS3 brings programming, error code management, parameter monitoring and performance testing into a single tool. With DTC, DataLogger and DynoDrive, you can control, verify and measure every operation without additional tools, keeping the workflow continuous.
With guided procedures, updated protocols and multiple connection modes, you manage programming, tests and vehicle checks quickly and independently.
KESS3 means less complexity, more control and a more efficient, complete workshop.
Choose from more than 3,500 protocols and 3 connection modes (OBD, BENCH and BOOT) to read and write ECUs, TCUs, ACMs and UDMs on cars, LCVs, motorcycles, ATVs, trucks, tractors and boats with thermal, hybrid or electric propulsion.
Connection modes
- OBD: Read and write from the diagnostic port.
- Bench: Direct access to the control unit via connector, for reading, writing and cloning without opening the control unit.
- Boot: Full access to the internal memories, for total control with the control unit open.
Control units
- ECU: Engine management control unit.
- TCU: Automatic transmission control unit.
- ACM: After-treatment systems control unit.
- UDM: Urea dosing control unit.
Vehicles
- Car: Cars and light commercial vehicles.
- Bike: Motorcycles, mopeds, quads and UTVs
- Truck: Articulated trucks and heavy transport vehicles
- Tractor: Tractors, agricultural machinery and off-highway vehicles
- Marine: Inboard and outboard boats
Extra functions
- DynoDrive: The function that measures acceleration and power produced by a vehicle.
- DataLogger: Real-time acquisition and recording of the vehicle engine parameters.
- DTC: The function that identifies and resets the error codes stored and recorded in the ECU.
- Special Functions: Special functions that allow specific vehicles to be configured for different usage contexts.
KESS3 Master
- Read, modify and write all supported vehicles independently
- Create your own network of KESS3 Slaves to provide with ready-to-use files
- Clone control units
Package contents
OBD cable, Bench/Boot cable (including rainbow flat cables), stable power supply and USB cable: everything you need to start.