Mountain Wave Avionics

Mountain Wave Avionics Mountain Wave Avionics is a FAA-certified Part 145 Repair Station and Garmin Dealer based in Three Forks, MT.

We specialize in Cessna 180, 182, and 185 Avionics Installations.

We know where you're sitting when on facebook... Wash your hands... Seriously.
07/29/2026

We know where you're sitting when on facebook... Wash your hands... Seriously.

07/26/2026

New software is available for GTR 205 and GNC 215 Garmin Radios. Reach out and we can get this installed for you. We car...
07/24/2026

New software is available for GTR 205 and GNC 215 Garmin Radios. Reach out and we can get this installed for you. We carry authorization as a repair station to do this remotely for you.

07/21/2026
07/20/2026

Massive thank you to The Recreational Aviation Foundation and USFS for all the work done at Landmark. Thank you!

07/10/2026

The market has been waiting for Garmin's updated version of the pop...

07/09/2026

Going down!

Hey Husky and Cub drivers. Sick of having a radio stack between your knees? Clean up the panel and put the transponder s...
07/01/2026

Hey Husky and Cub drivers. Sick of having a radio stack between your knees? Clean up the panel and put the transponder somewhere else.

When you can fly and help a customer, you do it. Quick flight to swap an altitude encoder and reconfigure the transponder onn this Husky install we did a year ago.

Shout out to Million Air at KBZN for all they do. Today, it was helping me calibrate the fuel senders on a 185 that we j...
06/27/2026

Shout out to Million Air at KBZN for all they do. Today, it was helping me calibrate the fuel senders on a 185 that we just installed a Garmin Aviation G3X panel in. They’re always there to help us pull a plane out for troubleshooting, or to help with stuff like this. We appreciate you!

You know you’re working hard (and perhaps too late) when you find a coffee ring on your customer’s STC permission letter...
06/17/2026

You know you’re working hard (and perhaps too late) when you find a coffee ring on your customer’s STC permission letter.

We are honored to serve our customers with thorough and complete paperwork for all Garmin Aviation installations.

Lots of shops can do cool looking panels. We back it up.

Address

Three Forks, MT

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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