KESS3 Adds Boot Support for Landini McCormick CompAir

 Alientech KESS3 released new protocol fpr HJS ACU- CompAir, Landini, McCormick.

Operate in BOOT mode on next-generation agricultural and industrial machines, expanding your service options on some of the most requested work vehicles in the field.

  • Read and write in BOOT mode on the HJS ACU control unit
  • Work with precision on 4.5L and 6.7L engines from 2014 onwards
  • Optimize performance and auxiliary system management on CompAir, Landini, and McCormick professional machines

19.11.2025 — UPGRADE 2.63

KESS3 expands its support for professional vehicles by introducing a new protocol for the HJS ACU control unit, installed on 4.5L and 6.7L engines from CompAir, Landini, and McCormick. This update offers new tuning opportunities for agricultural and industrial vehicles, improving performance and the management of auxiliary engine systems.

Read and write directly to the ACM memory, with the ECU open, in BOOT mode on vehicles produced from 2014 up to and beyond 2021.

Gain new customers by offering a highly requested service that supports professionals working with modern and high-performance machines.

Technical focus
Connection: BOOT
ACM: HJS ACU
Production years: from 2014 to beyond 2021
Brands involved: CompAir, Landini, McCormick

Supported vehicles
CompAir Air Compressor
Landini 6 Series
McCormick X6, X7, X8


KESS3 Update CompAir Landini McCormick HJS ACU in Boot 

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