This 1974 Beechcraft C23 Sundowner 180, registration N6508R, presents a well-maintained and extensively upgraded example with 2,174 total time on the airframe. The aircraft is powered by a Lycoming O-360-A4J engine with 201 hours since its major overhaul, which included new Millennium cylinders, and it features a Sensenich fixed-pitch propeller with 81 hours since installation. A significant investment of nearly $40,000 has been made in a complete Garmin glass panel upgrade, including a GNX 375 GPS/ADS-B transponder, a GMA 345 audio panel, a GNC 215 NAV/COM, a GTR 205 COM, three GI 275 displays with Engine Information System, and all-new...
GPS
Garmin GNX 375 - GNX GPS/ADS-B Transponder, GA GPS/WAAS Antenna
Comms
Garmin GNC 215 - GNC NAV/COM Radio, GTR COM Radio
Autopilot
Century I - I Autopilot with GPS Tracking
Audio
Garmin GMA 345 - GMA Audio Panel with Bluetooth
ADS-B Out
Garmin GNX 375 - GNX GPS/ADS-B Transponder
ADS-B In
Garmin GNX 375 - GNX GPS/ADS-B Transponder
PFD
Garmin GI 275 - (3) GI Includes EIS, ADAHRS, and Backup Attitude
EMS/EIS
Garmin GI 275 - GI EIS with GEA Engine Sensor Kit
Fuel System
CIES - Fuel System Upgrade with CIES Digital Senders
Electrical System
Garmin GSB 15 - GSB USB Power Module, Panel Reconfiguration, New CB Bus Bars, and Wiring Harnesses, Vacuum System Removed, Electrical-Only Ops
Sensors
Garmin GAE 12 - GAE Digital Altitude Encoder, GMU Magnetometer, GTP OAT Probe
Engine
New Millennium - Cylinders, Lightweight Starter, Overhauled Magnetos, Yellow-Tagged Crankcase/Steel Parts
Asking Price
$129,900
Longmont, CO, USA
Dec 22, 2025: $129,900 - trade-a-plane
Asking Price
$129,900
Longmont, CO, USA
Dec 22, 2025: $129,900 - trade-a-plane
Find the perfect Beechcraft Sundowner for you. Browse over 5,000 aircraft for sale and filter by specifications, avionics, useful load, and more...
Find the perfect Beechcraft Sundowner for you. Browse over 5,000 aircraft for sale and filter by specifications, avionics, useful load, and more...
Asking Price
$129,900