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Garmin GPSMAP 640 Accessories

Garmin accessories for the Garmin GPSMAP 640 marine chartplotter. All of the Garmin GPSMAP 640 accessories available to purchase from ActiveGPS are genuine Garmin parts.

We only sell genuine stock and do not sell third party parts and accessories. You can phone 01733 777623 (Mon-Fri 9:30am-5pm) to make your purchase or click the images or accessory descriptions below to make your purchase online via the ActiveGPS website.

GarminBlueChart g3 marine charts are also available for use with the Garmin GPSMAP 640. For further information please click here or scroll down this page past the Garmin GPSMAP 640 accessories below.

Garmin GPSMAP 640 Carrying Case


‣Protect your Garmin GPSMAP 640 and accessories from scuffs and scrapes while carrying it in style with this deluxe carrying case.

Garmin GPSMAP 640 Protective Cover


‣Heavy duty cover fits the Garmin GPSMAP 640 unit snugly, protects screen from getting scratched and guards against the harsh rays of the sun

Garmin GPSMAP 640 Swivel Mounting Bracket


‣Use the Garmin GPSMAP 640 swivel mounting bracket to mount, swivel and tilt your Garmin GPSMAP 640 to get the best viewing angle.

Garmin GPSMAP 640 Portable Friction Mount


‣Mould the non-skid base to your vehicles dashboard, and the portable friction mount will hold your Garmin GPSMAP 640 securely in place as you drive.

Garmin GPSMAP 640 GA 25 MCX Remote GPS Antenna


‣For better GPS reception in vehicles with UV windscreens or discreet mounting, this external GPS antenna is the answer.

Garmin GPSMAP 640 Mini USB Cable


‣The mini USB cable connects your Garmin GPSMAP 640 directly to the computer for updates, maps, etc.


We offer UK, Europe and Worldwide deliveries. We despatch orders at 5.30pm on Monday, Tuesday, Wednesday, Thursday and Friday. We need to receive your order on those days by 4.30pm. When possible we may despatch orders received after that time. No orders are despatched after 5.30pm and no orders are despatched on Saturday or Sunday.

We offer FREE UK delivery on all orders of £40.00 or more, plus next working day and guaranteed Saturday delivery options. Click here for further info. All options also appear at the basket pages.

Adding a Garmin BlueChart to your Garmin GPSMAP 640

By adding either a Garmin BlueChart g3 or g3 Vision marine chart on SD/microSD Card to your Garmin GPSMAP 640 marine device will provide the detailed digital marine charts on the screen of your device.

Garmin BlueChart g3 Vision marine charts are available in three different sizes, these are: Small, Regular and Large coverage. The larger the chart coverage the more area is covered without the need to change or buy additional charts. We suggest buying the chart(s) that provide the coverage for your sailing, fishing or yachting needs.

Charts are available to buy from ActiveGPS for the waters around the UK, Western Europe, Mediterranean and North American coasts. Find your Garmin BlueChart.

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Why buy from us?

We are official Authorised Internet Retailers for Garmin. We sell genuine Garmin products, accessories and maps. We purchase from assigned Garmin UK distributors. We do not buy on the grey market and we do not sell counterfeit products. You can rest assured that by purchasing from ActiveGPS you will receive the full support of Garmin.

This page was last updated on: 13th June 2022

Telephone Number:

01733 777623

Monday to Friday 9:30am to 5:00pm (UK Time)


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