Roberts Maritime Systems LLC

Marine Steering & Electronic Engine Controls Systems       Vintage 4-Stroke Outboard Support
MMC 42 MicroCommander
The MMC model 42 Mathers MicroCommander actuator was the first version of the MicroCommander!  The first 500 MicroCommander actuators sold were model 42. They did not support synchronization. I replaced a set in 2009 that were working just fine after 23 years, but the owner had repowered and wanted synchronization so we upgraded him to the 9000 series MicroCommander with engine sync. The model 42 actuator controls one engine/gear with mechanical throttle and mechanical shift.

The replacement most often required for the Mathers 00042 is the 91100 ClearCommand, however the 91102/3/4/5 can also be used.

We can assist you with selecting the best ZF 9000 series Micro Commander for  replacing your old model 42 at affordable prices.

You can also use the existing wiring on your boat. You DO NOT need to change the entire system, just the processors and possibly a couple wires in the engine room; all control heads work with the new 9000 series ClearCommands!
I was the Service Manager at Mathers Controls Inc and at ZF Mathers, so know these systems thoroughly, and can provide tech support from system purchase, to dock trials and sea trials.

Email us at or call us at 360-914-0256 for prompt expert support.

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