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Used Outboard Parts & Fresh Water Sterndrive Parts

858891T1 Mercury Mariner 200 Hp DFI Optimax ECU Engine Control Module 1999
858891T1 Mercury Mariner 200 Hp DFI Optimax ECU Engine Control Module 1999858891T1 Mercury Mariner 200 Hp DFI Optimax ECU Engine Control Module 1999
$399.99
For sale is one used ECM for Mercury Mariner outboard motors.

The Mercury part number is 858891T1. 

You will get a used Mercury ECU in great condition. There is no damage or corrosion on it at all. It was never underwater and there are no signs of overheating. 

This Mercury ECM should fit 200 Hp DFI outboards from 1999.  It might fit more than this or be programmable.  Please research your application or ask us.  It is your responsibility to make sure this is the right part for your application.


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