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1979 Mooney M20K 231Single-Engine Piston Aircraft • Waco, TX, USA

This 1979 Mooney M20K 231, registration N231DB, is offered at a price of $139,900 with a total time on airframe of 4,487 hours. The Continental TSIO-360-LB1 engine has approximately 1,127 hours since its major overhaul in 2007 (1,800-hour TBO), and the propeller is fresh from an overhaul in 2025 with just 10 hours of operation. The aircraft is equipped for both VFR and IFR flight (BTH), seats four, and has an annual inspection valid through August 2025.

Notably, the panel underwent a significant $32,000 upgrade in 2013, centered around a Garmin GTN750 with WAAS GPS, glideslope, and a 7.2-inch multi-function display. Avionics also include a...

Year
1979
Make
Mooney
Series
M20
Model
M20K 231
Tail #
N231DB
Serial #
25-0024

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Specifications

Category
Single-Engine Piston
Intended Use
Business, Recreational
Flight Rules
VFR & IFR
Seats (Stock)
4

Hours, Logs & Inspections

Total Time
4,487 hrs
Engine 1 Time
1,127 hrs
Prop 1 Time
10 hrs
Logbook Status
Complete logs since new available for serious buyers and pre-purchase inspection
Inspection Status
Annual August 2025

Avionics

GPS

Garmin GTN 750 - Nav/Com/GPS w/ WAAS Glideslope

Comms

Garmin GTX 225 - Nav/Com

AP

Century 41 - Auto Pilot with Directional Gyro and Heading Indicator, Altitude Attitude Hold w/NAV/HDG/APR/REV Modes Inoperative

Audio

Garmin GMA 35 - Remote Audio Intercom (integrated w/GTN750)

Weather

Garmin GDL 88 - WX Data-Link w/FIS-B (integrated w/GTN750)

Traffic

TIS-B Traffic System (integrated w/GTN750)

ADSB

Garmin GTX 32 - ADS-B Out Mode S Remote (integrated w/GTN750 Flight Deck)

ADS-B In

Garmin GTX 32 - ADS-B Out Mode S Remote (integrated w/GTN750 Flight Deck)

PFD

Garmin GTN 750 - MFD 7.2" High Resolution Multi-Function Display

MFD

Garmin GTN 750 - MFD 7.2" High Resolution Multi-Function Display

EMS

Electronics International UBG 16 6 - Inc. w/EGT/CHT/TIT/Fuel Flow

Additional Equipment

Landing Light

Whelen Parmetheus Plus - LED Landing Beam and Taxi Spreader Lights 14V 1.2 Amps (4.38" Round)

Navigation Lights

Whelen Orion OR650 - LED LED Wing Tip/Position/Nav and Strobe Lights and Tail Strobe

Beacon

Bottom-Mounted Red Rotating Beacon

Battery

12-Volt 15.5 Amp/Hour Battery, new 2025

Intercom

4-Place Intercom System w/Pilot/Co-Pilot Isolation

Window

Great Lakes Aero - Window Replacements 3/16"

Interior & Exterior

Interior Year
2007
Paint Year
2007
Interior Notes
Painted and leather upholstery in 2007, fair condition. Some cracking of interior window plastic.
Exterior Notes
Painted 2007. $3,000 allowance to re-dye leather seats front and back.

Engine & Propeller

Engine Type
Piston
Engine Count
1
Engine Make
Continental
Engine Model
TSIO-360-LB1
Engine Power
210 HP

Asking Price

$139,900

Aircraft Location

Waco, TX, USA

Listing Details

Used
For Sale

Price History

Jun 4, 2026: $139,900(-$5,000) - trade-a-plane

Apr 7, 2026: $144,900(-$4,100) - trade-a-plane

Feb 4, 2026: $149,000 - trade-a-plane

Contact Seller

First Seen: Feb 4, 2026

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Asking Price

$139,900