MIC3+CATDI Ignition Controller

Retrofit for CATERPILLAR® G3300 and G3400 Series Gas Engines

Based on the MIC3+ series, MOTORTECH produces special controllers as a replacement for the CATERPILLAR® Digital Ignition System used on G3300 and G3400 series gas engines. Designed as an exchange device, the MIC3+CATDI enables a quick conversion without great effort. With its future oriented electronical concept, the MIC3+CATDI convinces with improved engine starting performance, smooth running and improved combustion.

The significantly higher and controllable ignition energy (MOST) compared to the CATERPILLAR® devices, the accurate spark timing and diversified online diagnostics help to improve engine efficiency, spark plug life and availability of the equipment under the strictest emission regulations. In addition, all MIC3+CATDI ignition controllers include a special bracket kit to mount the ignition controller on the position of the CATERPILLAR® device.

Due to the same connector arrangement, existing output and input wiring can be reused. The included configuration menu offers pre-defined configuration files for all engines of CATERPILLAR®ʼs G3300 and G3400 series. Only engine type, ignition coil type and timing span need to be selected and the appropriate file gets uploaded to the ignition controller.

  • More than double the ignition energy (300 mJ)
  • Boost feature with 500 mJ ignition energy for improved starting performance
  • Smoother running of the engine
  • Improved combustion
  • Less wear to engine components
  • Manual switch for ignition timing adjustment
  • Solution for easy conversion
  • No rewiring or mechanical adaptations necessary
  • Predefined configuration data can be easily uploaded to the ignition controller
  • The available devices include all components for a successful upgrade
  • CAN Bus interface for connection of PowerView3 HMI Module for full ignition data visualization

MOTORTECH Integrated Configuration Tool

The configuration menu is specially made for MIC3+ retrofit ignition controllers and offers pre-defined configuration files for all engines of CATERPILLAR®ʼs G3300 and G3400 series and spares the individual programming of the unit. The clear structure of the menu makes it easy to find the correct file for your application.


  • Sales Flyer
    Sales Flyer  (757 KB)
  • Quick Start Guide
    Quick Start Guide  (1 MB)