The Garmin 12-pin and 8-pin to 12-pin adaptor (Y-cable) lets you connect a 12-pin scanning transducer and an 8-pin traditional in-hull (shoot-through) 2D transducer to a compatible Garmin echoMAP chartplotter/fishfinder combo.
It’s especially useful when a transom-mounted transducer temporarily loses depth at speed due to cavitation—the unit can keep showing depth using the in-hull 2D transducer instead.
Note: the in-hull transducer should be installed in a fiberglass hull.
What does it fit?
- Compatible Garmin echoMAP combo units with a 12-pin sonar port (used via the Y-cable).
- For setups combining 12-pin scanning + 8-pin in-hull 2D transducers.
