Garmin Power Data Sonar Cable f/720, 720s, 740, & 740s
NavPod SystemPod Pre-Cut for Garmin GPSMAP 7407/7407xsv/7607/7607xsv/720/721/740/740s/741/721xs/ echoMAP 70s/70dv in the center *AND* 2 additional instruments (3.6" holes; one on each side) 9.5" wide guard - Trionics
NavPod SystemPod Pre-Cut for Garmin GPSMAP 7407/7407xsv/7607/7607xsv/720/721/740/740s/741/721xs/ echoMAP 70s/70dv on the right *AND* extra space on the left for 12" wide guard - Trionics
Amazon.com: TomTom GO 740 Live 4.3-Inch Widescreen Portable Live Internet Connected GPS Navigator : Everything Else
Garmin Replacement Main PCB for GPSMap 740
Garmin Gps Map 720, 720s, 740, 740s, 750, 750s (DVD) for sale online | eBay
Garmin 740s For Sale - New & Used
Pair of garmin 740 chartplotters | Downeast Boat Forum
Garmin 2010, GPSMap 740 and GMR 604 xHD first looks - Panbo