GARMIN GNC420 • $1,750 • FOR SALE • Garmin GNC420 for sale. unit is working and removed for an avionics upgrade. Unit comes with tray, backplate, connector and 8130. was repaired by Garmin Jan. 22, 2021. The screen has some crazing but when powered up you don't notice it. Call Cory with any questions. 808-344-9392 • Contact Cory Hajek - AERO ADVENTURE WAREHOUSE LLC. , Owner - located Caldwell, ID 83605 United States • Telephone: 808-344-9392 • Posted May 27, 2025 • Show all Ads posted by this Advertiser • Recommend This Ad to a Friend • Email Advertiser • Save to Watchlist • Report This Ad • View Larger Images