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Garmin echoMAP, GPSMAP 8-Pin 3 Amp Power/Data Cable

Product Code: G8PIN3

Power and connect your compatible Garmin echoMAP or GPSMAP chartplotter with this 8-pin 3 Amp power/data cable. Use with NMEA 0183 devices and a lamp or horn for visible or audible alerts.

IMPORTANT: An alternative Garmin 8-pin Power/Data Cable with a 6 AMP fuse is also available. Please ensure your Garmin chartplotter is listed below, before buying the 3 Amp version on this webpage.

Garmin part number: 010-11970-00

Compatibility: Compatible with Garmin echoMAP 50dv/50s, echoMAP 70dv/70s, GPSMAP 527/527xs, GPSMAP 547/547xs, GPSMAP 557/557xs, GPSMAP 721/721xs, GPSMAP 741/741xs, GPSMAP 751/751xs.

Garmin echoMAP, GPSMAP 8-Pin 3 Amp Power/Data Cable - £25.99

Deliveries

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We offer FREE UK delivery on all orders of £50.00 or more, plus next working day and guaranteed Saturday delivery options. Click here for further info. All options also appear at the basket pages.

Garmin 8-Pin 3 Amp Power/Data Cable

Power and connect your compatible Garmin echoMAP 50, 70, GPSMAP 527, 557 and 751 among other chartplotters with this 8-pin 3 Amp power/data cable. Use with NMEA 0183 devices and a lamp or horn for visible or audible alerts.

Optional Garmin BlueChart g3

If you'd like to add Garmin marine BlueCharts to your Garmin compatible echoMAP or GPSMAP device you can do just that by buying and loading the latest Garmin BlueChart G3 and G3 Vision.

The charts come preloaded on microSD card together with a SD card adaptor. Simply insert the SD card into your Garmin echoMAP/GPSMAP and you are ready to sail, cruise, etc, with the latest nautical Garmin charts.

Key Features

‣Includes cable with bare power/data wires
‣Genuine Garmin Accessory

What's in the box?

‣Garmin echoMAP/GPSMAP 3 Amp power/data cable

What is the Garmin 8-pin 3 Amp power and data cable compatible with?

The genuine Garmin marine 8-pin data/power cable is compatible with the following Garmin chartplotters:

Garmin echoMAP 50dv, 50s, 70dv, 70s, GPSMAP 527, 527xs, 547, 547xs, 557, 557xs, 721, 721xs, 741, 741xs, 751, 751xs.

Please note: An alternative Garmin 8-pin Power/Data Cable with a 6 AMP fuse is also available. Please ensure your Garmin chartplotter is listed above, before buying the 3 Amp version on this webpage.

Why Buy from ActiveGPS?

We are official authorised Garmin Internet Retailers, offering genuine Garmin products, accessories, and maps. All our stock is purchased directly from assigned Garmin UK distributors - we do not source from the grey market and never sell counterfeit products.

When you buy from ActiveGPS.co.uk, you can be confident that you’ll receive full Garmin support and the peace of mind that comes with purchasing authentic, reliable products.

This page was last updated on: 2nd January 2026