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Garmin GPS 158 and GPS 158i Accessories

Garmin accessories for the Garmin GPS 158/158i marine GPS system. All of the GPS 158 accessories available to purchase from ActiveGPS are genuine Garmin parts. All of the accessories marked as 'in stock' are available today for standard, next day and Saturday delivery options (subject to the time/day the order is placed).

All of the Garmin GPSMAP 158/158i accessories marked as 'in stock' are available today and can be delivered as quickly as the next working day delivery when you choose our Next Working Day Delivery at £9.99. If there is no urgency when you receive your order we offer FREE UK delivery on all orders of £40 or more (delivered typically 3-5 workings days). We also deliver right around the world, prices start from £14.99. please see the basket pages or delivery page for more information.

Protect and look after the 5-inch screen/head unit of your Garmin GPS 158/158i with this genuine protective cover. The protective cover fits snugly over the display of the GPS 158.

Garmin GPS 158 Protective Cover - £14.99

Mount your GPS 158 chartplotter with ease when using this genuine mount. Once sited the mount enables you to tilt and swivel your GPS 158, giving you the best view of the GPS 158 5-inch grey scale screen. The mount also includes quick cable disconnect, allowing you to remove the GPS 158 easily. More details

Garmin GPS 158 Tilt Swivel Quick-release Mount - £20.99

Want to mount your GPS 158 flush on your boat? You need to buy this genuine Garmin GPS 158/158i flush mount kit.

The GPS 158 flush mount kit includes the following parts: flush mount gasket, mounting screws and mounting instructions.

Garmin GPS 158 Flush Mount Kit - £14.99

Power and connect your Garmin GPS 158i with this 4-pin power/data cable. The cable includes 6 feet (1.82 metres) length of cabling and also features NMEA 0183 inputs/output. More Details

Garmin GPS 158i Power/Data Cable - £19.99

Add an external GPS antenna to your GPS 158 and take advantage of the GLONASS system/constellation of satellites as well as standard GPS with the GA 38 antenna.

The GA 38 antenna is also ideal when mounting your Garmin GPS 158/158i in your boats cabin and away from a clear line of sight of the sky above and orbiting GPS satellites. More Details

Please note: We do sell a version of the Garmin GPS 158i complete with the GA 38 GPS/GLONASS external antenna, to view click here.

Garmin GPS 158 GA 38 GPS/GLONASS Antenna Kit - £49.99

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.

Page last updated: 23rd October 2018


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.

Telephone Number:

01733 777623

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

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