This Mercury Optimax 90hp 1.5L ECU / ECM / PCM / Computer is a top-of-the-line product for your outboard engine needs. It is designed to provide you with the best possible performance and reliability, so you can enjoy your time on the water to the fullest. With its advanced technology and top-quality construction, this product is sure to exceed your expectations.

It is ideal for those who are looking for a replacement ECU / ECM / PCM / Computer for their Mercury outboard engine. It is compatible with a wide range of different models, so you can be sure it will fit your needs perfectly. Whether you are a professional or a recreational boater, this product is sure to provide you with the power and performance you need to make the most of your time on the water. Location- CT1 U20

Truman Lake Marine Return Policy All items must be returned in the exact condition they were received. We deal in boat electrical parts, rigging, and used outboard components, so condition matters. • Unopened Condition — If a factory seal, or Truman lake marine’s seal, or protective packaging is broken, opened, removed, or tampered with, the item is not eligible for return or refund. • Installation Attempts — Any part that has been installed, hooked up, tested, altered, or shows signs of use will be denied for return. • Used Outboard Parts — Components must come back exactly as shipped—no swapped parts, no tool marks, no missing hardware. Because we protect our customers and our brand, any return that violates these conditions will be formally disputed through eBay. We document every part before shipping to ensure a fair and transparent process. Truman Lake Marine stands behind every part we sell—but we also stand firm on integrity, accuracy, and protecting honest buyers.