Overview

The Garmin 010-12990-01 is a trim piece snap cover for GPSMAP 9x3 Series chartplotters, used to replace a missing or damaged trim piece and keep the mount looking finished at the helm. It fits GPSMAP 923, GPSMAP 923xsv, GPSMAP 943, and GPSMAP 943xsv units.

This part is meant for the mounting trim area, not as a protective sun cover over the screen. It is a straightforward fix when a trim piece gets misplaced during an install, a refit, or routine service.

Key features

• Snap cover replacement trim piece for GPSMAP 9x3 Series installations
• Compatible with GPSMAP 923, 923xsv, 943, and 943xsv
• Restores the finished look when a trim piece is missing, cracked, or lost during maintenance
• No wiring or network setup involved, it is a mechanical fit-only component
• Useful to keep aboard as a spare for boats that see frequent electronics servicing

Compatibility and fit

Fit is specific to the GPSMAP 9x3 Series family listed above. If your display is a different series or size (for example 7x3 or 12x3), this snap cover will not match the trim geometry.

Before ordering, confirm the model name on your chartplotter faceplate (923, 923xsv, 943, or 943xsv). That quick check prevents ending up with trim for the wrong series.

Installation and setup

Installation is a simple snap-on fit. Clean any salt film or grit around the trim area first so the cover can seat fully, then align it to the matching edges and press evenly until it clicks into place.

No special tools are normally needed, and there is no impact to power, NMEA networks, or sonar connections since this part does not interface with the electronics.

Use on board

This snap cover is a good match for owners doing their own helm upgrades, service techs replacing small cosmetic parts after an install, and boats that run hard where small trim pieces are more likely to get bumped during cleaning or maintenance.

Maintenance and care

Rinse with fresh water after washdowns or salty runs and wipe with a soft cloth. If deeper cleaning is needed, use mild soap and water and avoid harsh solvents that can haze or weaken plastic trim parts.