1979 Mooney M20K 231SESingle-Engine Piston Aircraft • Lawrenceville, GA, USA
This 1979 Mooney M20K 231SE, registered as N133SM, presents a highly upgraded and well-maintained example with a total airframe time of 5,112 hours. Its most significant mechanical upgrade is the ModSquad '262' conversion, which installs the Continental TSIO-360-MB engine from the later Mooney 252 model, featuring an automatic wastegate, intercooler, and tuned induction system; this engine has 1,509 hours since a factory rebuild. The aircraft also features a new three-blade Hartzell propeller installed in October 2025 and a second alternator. A recent annual inspection was completed in 2025 by a Mooney service center, with the next annual...
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Specifications
- Category
- Single-Engine Piston
- Intended Use
- Recreational
Hours, Logs & Inspections
- Total Time
- 5,112 hrs
- Engine 1 Time
- 1,509 hrs
- Inspection Status
- Annual Due September 2026. Good Maintenance History. Current Annual by Cole Aviation (Mooney Service Center - Dalton GA).
Avionics
GPS
Garmin GTN-750 - WAAS Touchscreen GPS Nav Com FMS. WAAS GPS #2 Nav Com.
AP
Garmin GFC 500 - GFC 2-Axis Autopilot with Pitch Trim.
PFD
Garmin G5 - Attitude (EADI).
MFD
Garmin G5 - HSI (EHSI).
Audio
Garmin GMA 35 - GMA Remote Audio Panel (controlled on the GTN-750)
ADSB
Garmin GTX 345 - ADS-B Transponder and out).
Weather
Garmin GDL-69 - Weather DataLink.
EMS
JPI EDM-830 - JPI Engine Monitor Fuel Computer.
Additional Equipment
Ignition System
Surefly - Electronic Ignition.
Speed Brakes
Precise Flight - Speed Brakes.
Belly
One Piece Fiberglass Belly.
USB Chargers
USB Chargers.
Lighting
Complete LED Lighting.
Alternator
Second Alternator.
Interior & Exterior
- Interior Notes
- Chocolate Perforated Leather Seats with Tan Carpets.
- Exterior Notes
- Early 1990's Scheme (Bravo/MSE Split Scheme). White over Teal with Gold Trim. Hangared.
Engine & Propeller
- Engine Type
- Piston
- Engine Count
- 1
- Engine Make
- Continental
- Engine Model
- TSIO360MB
- Propeller Model
- Hartzell 3-blade
Asking Price
$149,000
Aircraft Location
Lawrenceville, GA, USA
Listing Details
- Used
- For Sale
Price History
Dec 14, 2025: $149,000 - controller
Contact Seller
Asking Price
$149,000
Aircraft Location
Lawrenceville, GA, USA
Listing Details
- Used
- For Sale
Price History
Dec 14, 2025: $149,000 - controller
Contact Seller
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Asking Price
$149,000