Garmin 010-10357-00 Gimbal Mounting Bracket
Product Description
Lost the mounting bracket that came with your unit or just want a second spot to mount your
sounder or chartplotter? Here's the replacement.
Works with:

GSD™ 21
GSD™ 22
Works with the following fish finders:
Fishfinder 320C
Fishfinder 340C
GPSMAP 188/188C Sounder
GPSMAP 198C Sounder