Product Overview
Engine Adapter Harness - Mercury Mariner To Johnson Evinrude

Stop wrestling with incompatible wiring and get back on the water faster with the CDI Electronics Engine Adapter Harness. This essential component seamlessly connects your Mercury Mariner outboard (1976-1981) to Johnson Evinrude controls, eliminating the headache of mismatched connections. Built with CDI's renowned quality and durability, this harness ensures a reliable and consistent signal transfer for smooth, trouble-free operation. Upgrade your boat's electrical system with confidence and enjoy the peace of mind that comes with a perfect fit and dependable performance.
Key Features
- **Effortless Compatibility:** Connects 1977-1981 Mercury Mariner (20HP, 2-cylinder) and 1976-1979 (50, 80, and 85HP, 4-cylinder) outboards to Johnson Evinrude controls.
- **Eliminates Wiring Headaches:** Provides a plug-and-play solution for mismatched connections, saving you time and frustration.
- **Durable Construction:** Built to withstand the harsh marine environment for long-lasting performance.
- **Reliable Signal Transfer:** Ensures consistent and accurate communication between your engine and controls.
- **Direct Replacement:** Replaces Mercury part number 414-3369 and various other superseded part numbers (84-64997, 84-73369, 84-73369A 1, 84-73447, 84-73447A 1, 84-76295, 84-76295A 1) for a perfect fit.
- **Easy Installation:** Designed for straightforward installation with a harness that exits through the side of the lower cowling.
- **CDI Quality:** Backed by CDI Electronics' reputation for superior design, quality, reliability, and service.
What's in the Box
- Engine Adapter Harness
Specifications
The Captain's Take
As a seasoned captain, I know the value of reliable equipment. This CDI adapter harness has saved me valuable time and headaches on several occasions. It's a simple solution to a common problem, and the quality is top-notch. I recommend it to anyone looking for a dependable way to connect their Mercury Mariner to Johnson Evinrude controls.