Mercury Marine 4-Port SmartCraft Junction Box 878492K14 – J-Box By Jetunit

Need a replacement junction box for your Mercury Marine SmartCraft system?

This 4-port J-Box, part number 878492K14, is exactly what you're looking for.

It's brand new and manufactured by jetunit.

This component connects and distributes signals within the SmartCraft network, keeping your engine electronics talking to each other.

It comes with a 1-year warranty.

While it's made in China, it's built to meet the specs for Mercury applications.

If you're troubleshooting electrical gremlins or rewiring, this box is a direct replacement.