Overview

The Garmin 010-10253-00 is a suction cup transducer adapter that lets you temporarily mount a transom-mount transducer to the side of a boat when you are running a portable fishfinder setup.

It is a practical way to move a Garmin echo, echoMAP, Fishfinder, or GPSMAP unit between boats without drilling a transom bracket. The adapter is compact for storage and ships at about 0.25 lb.

Key features

• Attaches a transom-mount transducer to the side of the boat using a suction cup mount, keeping the install removable
• Useful for portable fishfinder setups and swapping a display between multiple boats without adding new holes
• Works with transom-mount style transducers used on Garmin echo, echoMAP, Fishfinder, and GPSMAP systems
• Quick to remove for trailering, beaching, or when the boat is back on the lift
• Lightweight accessory that stores easily with portable sonar gear

Compatibility and fit

This adapter is meant for transom-mount transducers that normally attach to a bracket on the transom. It is not a match for through-hull or in-hull puck style transducers.

For a secure hold, the suction cup needs a smooth, clean surface. Textured hulls, heavy bottom paint buildup, or sharp strakes can make suction mounts less predictable, so placement matters.

Installation and setup

Clean the mounting area, wet the suction cup lightly, then press the cup firmly to remove air and lock it in place. Position the transducer so the face sits in the water where it will stay flooded and read cleanly, then route the cable so it cannot snag on cleats, rails, or a boarding ladder.

Before you leave the dock, confirm the mount is seated and the cable has strain relief. A quick re-check after the first few minutes on the water is a good habit for any removable mount.

Use notes on board

This style of mount is commonly used on rental boats, small skiffs, tenders, and boats where the electronics move between platforms. It is also handy for short-term testing when you are comparing transducer locations before committing to a permanent transom install.

When the boat comes out of the water, remove the adapter so the cup is not stressed by drying heat or trailering vibration.

Maintenance and care

Rinse with fresh water after saltwater use and wipe the suction surface clean so grit does not reduce sealing. Store it out of direct sun when possible and keep the cup from being crushed in a tight gear bin.