fits make: Mercury. year: 2000–2015.

( Manufacturer Part Number: 858891T ), ( Part Type: Ecm Hp ), ( Country/region Of Manufacture: United States )
The 858891T Mercury DFI ECM is a high-performance electronic fuel injection system designed for Mercury outboard engines with a power output of 200-225 horsepower. This particular model is compatible with engines manufactured between 2000 and 2001, and the part number is 858891T.
This Mercury DFI ECM is a crucial component of the engine's fuel system, responsible for managing the fuel delivery to the engine for optimal performance. It uses advanced digital technology to monitor engine conditions and adjust fuel injection parameters in real-time, ensuring the engine runs smoothly and efficiently.
The 858891T Mercury DFI ECM features a robust design with high-quality components, ensuring reliability and durability even under heavy usage. It is easy to install and integrate with the existing engine system, thanks to its plug-and-play design. The system also comes with a user-friendly digital display that allows you to monitor engine performance and diagnostics.
In summary, the 858891T Mercury DFI ECM is a critical upgrade for Mercury outboard engines, providing superior fuel management and improved engine performance. Its advanced digital technology, robust design, and easy installation make it an excellent choice for boat owners looking to enhance the performance of their engines.
The Mercury DFI ECM 200-225 HP, model number 858891t, is a fuel injection control module designed for Mercury outboard engines. Here are some pros and cons to consider before purchasing:
Pros:1. Improved engine performance: The ECM can help improve engine performance by optimizing fuel injection and ignition timing, resulting in better throttle response and acceleration.
2. Enhanced fuel efficiency: By controlling fuel injection more precisely, the ECM can help improve fuel efficiency and reduce emissions.
3. Durability: The Mercury DFI ECM is built to withstand harsh marine conditions, including saltwater and moisture.
4. Easy installation: The ECM can be easily installed with basic tools and a wiring harness.
5. Compatibility: The 85891t ECM is compatible with Mercury outboard engines from 2000 to 2001 with a power output of 200-225 HP.
Cons:1. Expensive: The Mercury DFI ECM can be quite expensive compared to other aftermarket fuel injection control modules.
2. Limited customization: While the ECM can optimize fuel injection and ignition timing, it may not offer as much customization as some aftermarket ECUs.
3. May require professional installation: While the installation process is relatively straightforward, some users may require professional assistance to ensure proper installation and avoid any potential issues.
Conclusion:The Mercury DFI ECM 858891t is a high-quality fuel injection control module that can help improve engine performance, fuel efficiency, and durability. However, its high price and limited customization options may be a deterrent for some users. If you are looking for a reliable and durable fuel injection control module for your Mercury outboard engine, the 858891t ECM is a solid choice. If you are on a budget or looking for more customization options, you may want to consider other aftermarket ECUs. Ultimately, the decision to purchase the Mercury DFI ECM 85889t should be based on your specific needs, budget, and preferences.
Good used ecm removed from a 2001 Mercury 225hp optima. Free USPS priority shipping.