Garmin · Chartplotter

Garmin GPSMAP 8400 / 8600

The GPSMAP 8400/8600 is Garmin’s range of 10, 12 and 16 in touchscreen chartplotters, sold since late 2018: the 8410, 8412 and 8416 are the international versions with a worldwide basemap, the 8610, 8612 and 8616 the North American ones with charts built in, and each comes chart-only or as an xsv with a 1 kW CHIRP, ClearVü, SideVü and Ultra High-Definition sounder inside. Its predecessor, the GPSMAP 7400/7600 (7 to 16 in, from 2014), has a different power/data harness, full-size SD cards, DVI video out and its own mounts and trims, and its software ended with version 20.40 in 2021. Axopar offered the GPSMAP 7410 and 7412 as options on early Axopar 28s (model years 2016–2018) and the first Axopar 37 (2016–2017), and Jeanneau offered the 8412xsv in the upgraded electronics pack of the 2020 and 2021 Merry Fisher 895. The GPSMAP 9000 came next, but the 8400/8600 is still sold and updated in 2026; the large 8417 to 8624 glass-helm screens and the 8700 black box share the name and the owner’s manual but have other housings, cables and software and are not covered here.

Manuals & documents

The links go straight to Garmin. We host no manuals or drawings — the manufacturer’s copy is the current one.

Wear parts & part numbers

PartOEM numberAlso fitsNote
Sun cover010-12799-00 · 010-12799-10 · 010-12799-01 · 010-12799-11 · 010-12799-02 · 010-12799-121,2,3,4,5—GPSMAP 8400/8600, all versions: 8x10 -00 (plastic, with a lip) or -10 (flat, magnetic); 8x12 -01 or -11; 8x16 -02 or -12. One cover is in the box. Keep magnetic covers away from pacemakers and laptops, and take any cover off before getting under way.
Sun cover010-12166-006,7—GPSMAP 7400/7600 only: 7407/7607 and xsv. Garmin’s lists give no cover for the 8 to 16 in 7400/7600 units.
Bezel010-12800-00 · 010-12800-01 · 010-12800-021,8,3,9,10—Trim piece snap covers that hide the mounting screws after flush or bail mounting (a set is in the box): 8x10 -00, 8x12 -01 (on Garmin’s UK and German lists only), 8x16 -02. The 10 in set was listed but not orderable in Garmin’s US store in October 2026.
Bezel010-12165-00 · 010-12165-01 · 010-12165-02 · 010-12165-03 · 010-12165-0411,12,6,13—GPSMAP 7400/7600 only: trim piece snap covers 7x07 -00, 7x08 -01, 7x10 -02, 7x12 -03 (Garmin also names the GPSMAP 12x2 Touch for it), 7x16 -04. They do not fit the 8400/8600.
Mounting bracket010-12798-00 · 010-12798-01 · 010-12798-021,2,3,9,14—Bail mount with knobs: 8x10 -00 (Garmin now names it for the GPSMAP 8x10 and 9x10), 8x12 -01, 8x16 -02. In the box of the 8x10 and 8x12 together with washers and wood screws; for the 8x16 it is an accessory.
Mounting bracket010-12163-00 · 010-12163-01 · 010-12163-02 · 010-12163-03 · 010-12167-2011,15,6,16,17—GPSMAP 7400/7600 only: bail mounts with knobs 7x07 010-12163-00, 7x08 -01, 7x10 -02, 7x12 -03 (on Garmin’s UK and German lists only; also GPSMAP 12x2 Touch), 7x16 010-12167-20. The 2015 instructions supply no screws for the bail; choose hardware that suits your dash.
Adjusting knobS00-01140-002,11,12,18—Single spare knob for the bail mount; Garmin lists it for every GPSMAP 8400/8600 and for the 7408 to 7416.
Fastening kit010-12801-00 · 010-12801-01 · 010-12801-021,2,3,9,19—Flush mount kit: 8x10 -00, 8x12 -01, 8x16 -02 (the 16 in kit was listed but not orderable in Garmin’s US store in October 2026). The kit in the box holds the cutting template, foam gasket, nut plates, M3 and M4 machine screws and wood screws; use only the supplied screws (powder coating, warranty).
Fastening kit010-12164-01 · 010-12164-02 · 010-12164-03 · 010-12164-0411,12,20,21—GPSMAP 7400/7600 only: flush mount kits 7x08 -01, 7x10 -02, 7x12 -03 (also GPSMAP 12x2 Touch), 7x16 -04.
Power cable010-12797-001,2,3,22,9—GPSMAP 8400/8600, all sizes: 1.8 m (6 ft) red/black power lead with an in-line holder for a 10 A 125 V fast-acting fuse. To extend it use 10 AWG up to 4.6 m, 8 AWG up to 7 m, 6 AWG up to 11 m. NMEA 0183 and the alarm wire are on the separate AUDIO port (cable 010-12852-00), not on this cable.
Power cable010-12152-1011,12,23,24,16—GPSMAP 7400/7600 only: 8-pin power/data harness, 1.8 m, carrying power, both NMEA 0183 ports, accessory-on and the alarm output. Does not fit the 8400/8600.
Cable010-12852-001,2,3,25,9,4—GPSMAP 8400/8600 only: NMEA 0183 with audio cable for the AUDIO port: bare wires for one NMEA 0183 input and output plus the yellow alarm wire, and RCA audio out (for example to a stereo’s AUX input).
Cable010-12390-30 · 010-12770-002,12,26,9,27,28—010-12390-30 J1939 cable for the 8400/8600 and the later 7400/7600 units with a J1939 port: reads engine data only, the plotter cannot transmit on J1939. Garmin’s warranty requires this cable on the J1939 port; connect it within 6 m of the engine-network backbone. 010-12770-00 adapts a Yamaha engine bus to J1939 and is listed for both generations.
Cable010-12390-20 · 010-12390-10 · 010-12390-112,9,4,29—GPSMAP 8400/8600 only: 010-12390-20 HDMI cable, 4.5 m, for HDMI IN or OUT (for longer runs an active HDMI cable and a coupler); 010-12390-10 micro-USB cable, 4.5 m, for a computer shown and touch-controlled on the plotter or for a Garmin card reader (longer runs only through a USB hub or repeater); 010-12390-11 OTG adapter cable. Garmin wants its own cables on the rear ports (corrosion, warranty). The 7400/7600 has DVI-D video out instead of HDMI.
Connector cap010-10817-01 · 010-10817-02 · 010-10817-03 · 010-10817-041,2,12,30,31,9—Weather caps for unused rear connectors: -01 NMEA 2000, -02 NMEA 0183, -03 power/data, -04 Garmin Marine Network. Listed for the 8400/8600, the network cap also for the 7400/7600. Garmin says to cap every unused connector against corrosion.
Card reader010-01023-00 · 010-02251-102,32,33,4—Listed for every GPSMAP 8400/8600: 010-01023-00 Garmin Card Reader (remote-mounted, 2 SD slots behind a magnetic water-resistant door) and 010-02251-10 USB card reader with USB-C adapter cable. From software v34.00 a USB card reader on the 8x10/8x12/8x16 takes SD cards up to 1 TB (exFAT, class 10).
Chart card010-C1272-20 · 010-C1275-20 · 010-C1238-20 · 010-C1271-20 · 010-C1273-20 · 010-C1274-2034,35,36,37,38—GPSMAP 8400/8600 only: Garmin Navionics+ regional cards (microSD/SD, with a one-year update subscription) from Garmin’s chart list for the 8412xsv: -C1272-20 Mediterranean and Black Sea (NSEU643L), -C1275-20 Europe Central and West (NSEU646L), -C1238-20 Mediterranean Central and West (NSEU012R), -C1271-20 UK, Ireland and Holland, -C1273-20 Baltic Sea, -C1274-20 Scandinavia South and North Germany. The same list for the 7412xsv has no Garmin Navionics+ card.
Chart card010-C0770-20 · 010-C0770-00 · 010-C1155-00 · 010-C1156-00 · 010-C1157-0034,35,39,40—BlueChart g3 and g3 Vision cards, which Garmin lists for both the 8412xsv and the 7412xsv (examples): 010-C0770-20 BlueChart g3 HXEU012R Mediterranean Central and West, 010-C0770-00 g3 Vision VEU012R (same region), and the large g3 Vision regions VEU721L Northern Europe (-C1155-00), VEU722L Europe Atlantic Coast (-C1156-00) and VEU723L Southern Europe (-C1157-00). On a 7400/7600 BlueChart cards are the way to charts.
Network cable010-11076-03 · 010-11076-00 · 010-11076-04 · 010-11076-01 · 010-11076-02 · 010-11089-00 · 010-11442-002,12,8,41,4,42—NMEA 2000 backbone/drop cables: 0.3 m 010-11076-03, 2 m -00, 4 m -04, 6 m -01, 10 m -02 (Garmin’s UK and German lists give 010-12935-20 to -24 for the same lengths); right-angle 2 m drop 010-11089-00; starter kit 010-11442-00 (UK/DE 010-12935-00) for a boat without a backbone. A drop cable and a T-connector come with every 8400/8600.
Network connector (T-piece, terminator)010-11078-00 · 010-11078-01 · 010-11080-00 · 010-11081-00 · 010-11096-002,8,43,44,45—NMEA 2000 connectors: T-connector 010-11078-00 (UK/DE 010-12935-10), 4-port T 010-11078-01 (010-12935-11), terminator male 010-11080-00 (010-12935-41) and female 010-11081-00 (010-12935-40), in-line terminator 010-11096-00.
Network connector (T-piece, terminator)010-11580-002,8,46,9—NMEA 2000 power isolator (UK/DE 010-12935-31); Garmin recommends it where the maker of the existing network is unknown.
Power cable010-11079-002,8,47,9—NMEA 2000 power cable for the backbone (UK/DE 010-12935-30), not for the plotter, which takes no power from NMEA 2000. Only one power feed per network, switched through the ignition or a switch.
Network cable010-10550-00 · 010-10551-00 · 010-10552-00 · 010-11169-002,12,8,48,9—Garmin Marine Network cables (large connectors), the same for both generations: 1.83 m (6 ft) 010-10550-00, 6.1 m (20 ft) 010-10551-00, 12.19 m (40 ft) 010-10552-00, 15.24 m (50 ft) 010-11169-00; Garmin’s lists also show 010-10550-10 (6 ft) and 010-10551-10 (20 ft) with the same description. The manual rules out third-party CAT5/RJ45 cables on these ports.
Network connector (T-piece, terminator)010-10580-00 · 010-10603-002,12,49—Garmin Marine Network: cable coupler 010-10580-00 to join two network cables, and field connectors 010-10603-00 (2-pack) for a cut cable; both generations.
Network connector (T-piece, terminator)010-10580-102,12,50,9,51—Garmin Marine Network PoE isolation coupler, both generations: required between the network and any third-party device such as a FLIR camera, because Power over Ethernet straight into the plotter damages it.
Remote control010-02011-00 · 010-02011-012,12,15,52,53—GRID 20 remote input device, vertical 010-02011-00 or horizontal 010-02011-01, listed for the 8400/8600 and the 7400/7600 (GRID 20 software v2.20). The original GRID 010-01024-00 is on Garmin’s UK list for the 7400/7600 only.
GNSS (GPS) antenna010-02316-10 · 010-02316-20 · 010-02316-002,12,54,55,4—GPS 24xd external GPS/GNSS antenna: NMEA 2000 version white 010-02316-10 or black -20, NMEA 0183 version 010-02316-00. For a plotter mounted inside a cabin where the internal antenna has no view of the sky; listed for both generations.
Transducer010-12402-00 · 010-12402-1056,57,58,59—GT15M, 8-pin: GT15M-IH in-hull 010-12402-00 (CHIRP 85–165 kHz, 600 W, depth only, 6 m cable, 0–25° deadrise) and the transom version GT15M-TM 010-12402-10; on Garmin’s list for both generations. Jeanneau’s 2020–2021 Merry Fisher 895 lists pair the 8412xsv upgrade with a ‘GT15-IH’, probably the same in-hull unit.
Transducer010-01966-00 · 010-01966-10 · 010-01966-1160,61,62,57,58—GT51M all-in-one, 12-pin: mid-band CHIRP 80–160 kHz 600 W plus ClearVü/SideVü 260/455 kHz 500 W and temperature. -00 GT51M-TM transom (9 m cable), -10 GT51M-TH stainless thru-hull (1.5 m plus 9 m extension, up to 5° deadrise), -11 GT51M-THP plastic thru-hull. Both generations.
Transducer010-12405-0063,57,58—GT52HW-TM all-in-one transom transducer, 12-pin: high-wide CHIRP 150–240 kHz 250 W plus ClearVü/SideVü 455/800 kHz 350 W, 6 m cable. Both generations.
Transducer010-01961-00 · 010-01961-10 · 010-01961-1164,65,57,58—GT30 scanning transducer, 12-pin, ClearVü and SideVü only (455/800 kHz, 500 W): -00 GT30-TM transom, -10 GT30-TH stainless thru-hull, -11 plastic thru-hull. Both generations.
Transducer010-13073-00 · 010-02732-10 · 010-02732-1166,57,58—GPSMAP 8400/8600xsv only: GT56UHD all-in-one, 12-pin, high-wide CHIRP 150–240 kHz 350 W plus UHD ClearVü/SideVü 455/800/1000 kHz 500 W and temperature, 7.6 m (25 ft) cable; -00 GT56UHD-TM transom (current number), -10 thru-hull, -11 plastic thru-hull. Not on Garmin’s list for the 7400/7600xsv.
Transducer010-12909-0067,57,58—GPSMAP 8400/8600xsv only: GT54UHD-TM all-in-one transom transducer, 12-pin, high-wide CHIRP plus UHD ClearVü at 800 kHz and UHD SideVü at 1.2 MHz, 350 W, 6 m cable.
Transducer010-12776-00 · 010-12776-10 · 010-12776-1168,69,57,58—GPSMAP 8400/8600xsv only: GT34UHD scanning transducer, 12-pin, UHD ClearVü at 800 kHz and SideVü at 1.2 MHz only (no traditional sonar), 500 W, 6 m cable; -00 GT34UHD-TM transom, -10 GT34UHD-TH thru-hull, -11 plastic thru-hull. Also sold with the GCV 20 as 010-02055-00.
Transducer010-11939-20 · 010-11939-21 · 010-11939-22 · 010-12181-20 · 010-12181-21 · 010-12181-2270,57,58,71—Airmar 1 kW CHIRP thru-hulls, 8-pin, which use the full 1 kW of the xsv sounder in both generations. B175M (85–135 kHz, depth and temperature, 11.9 m cable): 010-11939-20 0° tilt (0–7° deadrise), -21 12° (8–15°), -22 20° (16–24°). B175HW (150–250 kHz): 010-12181-20/-21/-22 with the same tilts. Garmin also lists the B175H (130–210 kHz, 010-11937-20/-21/-22) and the B175L (40–60 kHz, 010-11938-20/-21/-22).
Mounting bracket010-12006-112,12,72—Heavy-duty transom mount with spray shield for 4-, 8- and 12-pin transducers (not for the display); listed for the 8400/8600xsv and 7400/7600xsv.
Cable010-11617-44 · 010-11617-32 · 010-11617-42 · 010-11617-50 · 010-11617-522,12,73,74—Transducer extension cables, xsv models of both generations: for 12-pin scanning transducers 1.3 m 010-11617-44 (on the 8400/8600 list only), 3 m -32, 9 m -42; for 8-pin transducers 3 m 010-11617-50, 9 m -52.
Cable010-12122-10 · 010-12098-10 · 010-11613-10 · 010-12225-002,75—Transducer adapters, xsv models of both generations: 010-12122-10 lets an 8-pin transducer use the 12-pin port (with XID); 010-12098-10 right-angle 12-pin adapter for tight space behind the dash; 010-11613-10 wire block for a bare-wire transducer on the 12-pin port; 010-12225-00 12-pin Y-cable, 10 m.
Cable010-11613-0011,12,76—GPSMAP 7400/7600xsv only: wire block adapter from a 6-pin transducer to the 8-pin sounder port.
Sonar module010-01159-0077,78,79—GSD 25 premium network sounder for the chart-only 8410/8412/8416, 8610/8612/8616 and the 7400/7600: 1 kW, traditional 50/200, 77/200 and 83/200 kHz, single- and dual-channel CHIRP 40–250 kHz, CHIRP ClearVü/SideVü at 260/455 or 455/800 kHz depending on the transducer; 10–35 V, 27 W max. Garmin’s device list includes every 8400/8600 and 7400/7600 model; the Axopar 37 Mark 1 (2016–2017) Garmin pack paired the GPSMAP 7410/7412 with a GSD 25.
Sonar module010-00958-0080,81—GSD 26, the older CHIRP professional network sounder; Garmin lists it for every 8400/8600 and 7400/7600 model.
Sonar module010-00957-0082,83—GSD 24, the older non-CHIRP network sounder; listed for both generations.
Sonar module010-02797-0084,85—GPSMAP 8400/8600 only: GSD 28, the current network sounder; Garmin’s device list includes the 8400/8600 but not the 7400/7600.
Sonar module010-02055-1086,87—GCV 20 scanning sonar black box: adds Ultra High-Definition ClearVü (800 kHz) and SideVü (1.2 MHz), 500 W, 10.5 W max; Garmin’s device list includes both generations. Sold with a GT34UHD-TM as 010-02055-00.
Card door010-12167-0020,11,12,88,89—GPSMAP 7400/7600 only: the door over the two full-size SD slots of the 7408, 7410, 7412 and 7416 (and their 7600 versions).
Software update card010-00427-012,12,90,91—GPSMAP series software update on a preloaded SD card, bought from Garmin instead of downloading; listed for the 8400/8600 and the 7400/7600.
Network switch010-00351-002,12,92—GMS 10 network port expander, for more Garmin Marine Network ports than the plotter’s two; both generations.

Numbers checked against the sources below on 13 October 2026. Always confirm against your serial number and exact type before ordering.

Service intervals

TaskInterval
Software updateNo fixed interval: after installation, whenever a device or accessory is added, and when the ActiveCaptain app reports an update. Update over Wi-Fi with ActiveCaptain, or with Garmin Express and a blank FAT32 card (16–32 GB on Garmin’s download page); insert the card only after the plotter has fully started and leave it in until the restart is complete4,53
Data backupBefore every software update and from time to time: Where To > Manage User Data > Data Transfer > Save to Card, then copy the Garmin\UserData folder to a computer. Never use a chart or ActiveCaptain card for updates, its data can be lost4,53
Fresh-water washAfter salt water or sunscreen gets on it: rinse with fresh water and clean the screen with a lens cleaner safe for anti-reflective coatings on a soft, lint-free cloth; never ammonia, solvents, waxes or abrasives. Fit the sun cover when the boat is not in use and take it off before getting under way4,51
Electrical connectionsWhenever cables or cards are handled: locking rings fully home with the o-ring in place, weather caps on unused ports, card and weather cap dry before closing; power and ground tight at the battery9,4

From Garmin’s GPSMAP 8400/8600/8700 owner’s manual (June 2026), the GPSMAP 7400/7600 owner’s manual, the GPSMAP 8x10/8x12/8x16 installation instructions and Garmin’s software download page. Garmin sets no maintenance schedule in hours or months for these displays.

Specifications

ModelsGPSMAP 8400 (international, worldwide basemap): 8410 010-02091-00, 8410xsv 010-02091-02, 8412 010-02092-00, 8412xsv 010-02092-02, 8416 010-02093-00, 8416xsv 010-02093-02. xsv = sonar built in; the plain 8410, 8412 and 8416 need a network sonar module (GSD, GCV) or another xsv on the Garmin Marine Network for sonar93,94,95
ModelsGPSMAP 8600 (North America, charts built in), current numbers with Garmin Navionics+: 8610 010-02091-50, 8610xsv 010-02091-51, 8612 010-02092-50, 8612xsv 010-02092-51, 8616 010-02093-50, 8616xsv 010-02093-51. Same hardware as the 8400; at launch in 2018 the 8600 came with BlueChart g3 and LakeVü g3 with Navionics data and Auto Guidance93,96,95
ModelsPredecessor GPSMAP 7400/7600 (2014–2018): 7407 010-01379-10 (xsv -12), 7408 010-01305-10 (xsv -12), 7410 010-01306-10 (xsv -12), 7412 010-01307-10 (xsv -12), 7416 010-01402-10 (xsv -12). The 7600 versions (USA, BlueChart g2 and LakeVü HD) end in -11 (chart-only) and -13 (xsv). 7, 8, 10 and 12 in announced in October 2014, 16 in in February 201597,98,99
Years builtGPSMAP 8400/8600: announced on 30 October 2018 (Fort Lauderdale boat show), first software v14.10 at the end of 2018, still sold and updated in 2026 · GPSMAP 7400/7600: announced on 29 October 2014 (16 in from February 2015), last software v20.40 in June 202195,98,99,53,94
TypeTouchscreen chartplotter (multifunction display) for bail or flush mounting; plain models are chart-only, xsv models have the sounder and its transducer ports. Charts: the 8400 has a worldwide basemap, the 8600 Garmin Navionics+ built in (USA); both take BlueChart g3 / g3 Vision, Garmin Navionics+ / Garmin Navionics Vision+ and LakeVü g3 / g3 Ultra cards, Garmin Quickdraw Contours and raster charts. Garmin’s chart list for the 7412xsv has BlueChart g3 / g3 Vision but no Garmin Navionics+ cards93,34,35
DisplayMulti-touch IPS, readable with polarised sunglasses: 8x10 10.1 in (218.4 × 136.9 mm), 8x12 11.6 in (257.3 × 145.2 mm), 8x16 15.6 in (345.2 × 194.6 mm) · 7400/7600: 7.0 / 8.0 / 10.1 / 12.1 / 15.6 in4,93,97
Resolution8x10 1920 × 1200 (WUXGA), 8x12 and 8x16 1920 × 1080 (Full HD) · 7400/7600: 7 in 800 × 480, 8 in 1024 × 600, 10 and 12 in 1280 × 800, 16 in 1366 × 7684,93,97
Transducers8400/8600xsv: 1 kW dual-channel CHIRP (traditional 50/200, 77/200 or 83/200 kHz; single-channel CHIRP 40–250 kHz), CHIRP ClearVü and SideVü at 260/455/800 kHz, plus Ultra High-Definition ClearVü at 800 kHz and SideVü at 1.2 MHz; 1000 W RMS CHIRP, 500 W scanning, depth up to 5000 ft at 1 kW depending on the transducer. 8-pin and 12-pin transducer ports; a LiveScope LVS12 plugs straight into the LVS port, other Panoptix and LiveScope systems connect over the Garmin Marine Network4,93,100
Transducers7400/7600xsv: 1 kW dual-channel CHIRP (70/83/200 kHz and low, medium and high CHIRP) plus ClearVü and SideVü at 260/455/800 kHz, 8-pin and 12-pin ports. No Ultra High-Definition: Garmin’s transducer finder lists the GT24, GT34, GT36, GT54 and GT56 UHD transducers for the 8400/8600xsv only97,58,57
Voltage10–32 V DC, for 12 and 24 V boats (both generations). The plotter takes no power from NMEA 2000 and will not start with less than 12 V at its power plug9,4,16,27
Breaker / fuse8400/8600: 10 A 125 V fast-acting fuse in the holder on the power cable · 7400/7600: 5 A (7 to 12 in) or 8 A (16 in) in the 2015 installation instructions, 6 A for every size in the 2025 J1939 edition9,4,16,27
Power consumptionTypical / max current at 12 V and max power: 8x10 1.5 A / 6.0 A, 40.1 W (at 10 V); 8x12 1.3 A / 6.0 A, 45 W; 8x16 1.3 A / 6.0 A, 52.1 W · 7400/7600: 7 in 1.5 / 2.0 A, 24 W; 8 in 1.8 / 2.3 A, 27 W; 10 in 1.95 / 2.5 A, 30 W; 12 in 2.5 / 3.0 A, 36 W; 16 in 3.82 / 5.24 A, 57.2 W. NMEA 2000 LEN 2 (75 mA) on both4,9,16
Data connections8400/8600: 1 NMEA 2000 port; NMEA 0183 (1 in, 1 out, up to 3 listeners on the Tx line), alarm output (100 mA max, relay needed) and audio out on the AUDIO port; 2 Garmin Marine Network ports (each a switch); J1939 engine port (receive only); HDMI in (HDCP) and HDMI out; composite video in (BNC); micro-USB4,9,93
Data connections7400/7600: NMEA 2000; 2 NMEA 0183 in and 2 out, alarm and accessory-on wires on the 8-pin power/data harness; 2 Garmin Marine Network ports; 2 composite video in (BNC); DVI-D video out (with a blue rubber seal between plug and port); BNC port for an external GPS antenna; a J1939 port only on the later J1939 units16,27,97
Data connectionsBuilt-in 10 Hz GPS, GLONASS and Galileo receiver with WAAS (7400/7600: GPS and GLONASS); Wi-Fi for the ActiveCaptain app (charts, software updates, Helm), Bluetooth and ANT for quatix watches, gWind Wireless 2 and remotes; 2.4 GHz at 12.3 dBm93,4,97
Processor & memory8x10/8x12/8x16: 2 microSD slots at the back under a weather cap, up to 32 GB FAT32, class 4 or faster (Garmin recommends 8 GB class 10); from software v34.00 a USB card reader takes SD cards up to 1 TB in exFAT · 7400/7600: 2 full-size SD slots behind a door (7x07: microSD), up to 32 GB FAT324,9,51,27
Waterproof ratingIPX7 (IEC 60529: immersion to 1 m for 30 min), polycarbonate and die-cast aluminium housing; the same for the 7400/76004,16
Operating temperature−15 °C to +55 °C (both generations)4,16
DimensionsWidth × height × depth: 8x10 259.9 × 205.1 × 75.1 mm (on the bail mount 259.9 × 221.6 × 103.5 mm), 8x12 302.8 × 216.4 × 76.5 mm (323.9 × 216.4 × 104.5 mm), 8x16 384.7 × 262.6 × 76 mm (405.6 × 279.1 × 103 mm); leave 11.1 cm behind a flush-mounted unit · 7400/7600: 7 in 222 × 142 × 66 mm, 8 in 244 × 160 × 76 mm, 10 in 290 × 206 × 79 mm, 12 in 330 × 226 × 79 mm, 16 in 426 × 275 × 88 mm4,16
Weight8x10 2.4 kg, 8x12 2.7 kg, 8x16 4.4 kg (owner’s manual) · 7400/7600: 7 in 1.13 kg, 8 in 1.41 kg, 10 in 2.36 kg, 12 in 2.72 kg, 16 in 4.3 kg4,9,16
Mounting8x10 and 8x12: bail mount with knobs, screws and the flush-mount kit in the box; 8x16: flush-mount kit only (bail mount extra). Flush mounting by template: 14.6 mm corner holes, jigsaw, then wood screws, nut plates or M4 tapped holes, the adhesive foam gasket and marine sealant. Flat edge-to-edge glass-helm mounting is possible, but Garmin supplies no hardware for it. Compass-safe distance: 8x10 45 cm, 8x12 35 cm, 8x16 105 cm; 7400/7600 (2025 instructions) 7x07 80 cm, 7x08 70 cm, 7x10 and 7x12 65 cm, 7x16 85 cm9,93,4,27
SoftwareGPSMAP 8410 to 8616 (xsv): v44.06 (August 2026) in Garmin’s ‘GPSMAP Series with SD Card’ download, first release v14.10 (end of 2018); Garmin’s June 2026 feature update still lists the 8600xsv · GPSMAP 7400/7600: final version v20.40 (June 2021)53,91

Good to know

  • Know which generation you have before ordering spares. The 7400/7600 (2014–2018) uses an 8-pin power/data harness (010-12152-10), full-size SD cards, DVI-D video out and its own 010-1216x mounts and trims; the 8400/8600 has a separate power cable (010-12797-00) plus the NMEA 0183/audio cable (010-12852-00), microSD, HDMI and 010-1279x/010-1280x mounts. The housings differ too (7x12 330 × 226 mm, 8x12 302.8 × 216.4 mm), so a newer 12 in unit does not drop into an old 7412 cut-out as it is.16,4,2,12
  • Sonar depends on the letters: only xsv units have the sounder and the transducer ports. A chart-only 8410/8412/8416, or a 7410/7412 as Axopar offered it on the early Axopar 37 with a GSD 25, needs a network sonar module. Ultra High-Definition transducers (GT34, GT36, GT54, GT56 UHD) work on the 8400/8600xsv only, while the Airmar B175 1 kW thru-hulls use the full 1 kW of either generation’s xsv sounder through the 8-pin port.57,58,77,93,79
  • For software updates use a blank FAT32 card no larger than 32 GB, insert it only after the home screen has appeared, and leave it in until the plotter has restarted, otherwise the update stays incomplete. Back up waypoints and routes to a separate card first and never use your chart card. A 7400/7600 gets nothing newer than 20.40 (2021); the 8400/8600 is still being updated in 2026.4,53
  • The microSD slots of the 8x10/8x12/8x16 sit at the back under a weather cap: dry card and cap before closing it (corrosion), and if the back will be out of reach after flush mounting, insert the cards before the unit goes into the dash. Cap every unused connector.4,9
  • If the plotter will not start or keeps switching off, check the 10 A fast-acting fuse in the red lead and measure at least 12 V at the power plug; long runs need heavier wire (10 AWG up to 4.6 m, 8 AWG up to 7 m, 6 AWG up to 11 m).4,9
  • Never connect a third-party network device such as a FLIR camera straight to a Garmin Marine Network port: use the PoE isolation coupler 010-10580-10, Garmin network cables only (no CAT5/RJ45) and a common ground for every networked unit. On NMEA 2000 keep a single power feed, and use the power isolator 010-11580-00 if the maker of the existing backbone is unknown.9,51

Videos & how-tos

Links to YouTube, nothing embedded. The maker’s own channel comes first; the rest are channels we found clear and correct for this model.

Fitted in

Boats whose builder lists it as standard or optional equipment:

  • Axopar 28 — Garmin GPSMAP 7410 · 7412 (Option MY2016–2018, single or twin, flush-mounted (the 2014 pages only say ‘Garmin navigational electronics’))
  • Axopar 37 — Garmin GPSMAP 7410 · 7412 (Mark 1, lists of 2016–2017: option, single or twin; a Garmin GSD25 sonar module was also offered)
  • Beneteau Flyer 8 — Garmin GPSMAP 8412xsv (First generation: Electronic Upgraded Pack in the December 2020 list, with a GT20 transducer)

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