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1961 Cessna 172/180 ConversionSingle-Engine Piston Aircraft • Bethany, OK, USA

This 1961 Cessna 172, registration N7811X, features the highly desirable Avcon 180HP STC conversion, replacing the original engine with a Lycoming O-360-A4M. With 3406 total hours on the airframe, the engine shows 1987 hours since major overhaul and 632 hours since a bottom overhaul, having been sourced from a wind-damaged aircraft where it was completely torn down, inspected, and reinstalled. The propeller, an Avcon STC fixed pitch unit, has only 491 hours since new.

Avionics are centered around a Garmin 430W WAAS GPS/Nav/Com paired with a Garmin 106A glideslope receiver and a King KX-155 digital Nav/Com for a second radio. A PS...

Year
1961
Make
Cessna
Series
172 Skyhawk
Model
172/180 Conversion
Tail #
N7811X
Serial #
172-48311

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Specifications

Category
Single-Engine Piston
Intended Use
Business, Training, Recreational

Hours, Logs & Inspections

Total Time
3,406 hrs
Engine 1 Time
1,987 hrs (SMOH)
Prop 1 Time
491 hrs (SNEW)
Logbook Status
All Logs Since New & No Known Damage History

Avionics

GPS

Garmin GNS 430W - WAAS GPS/Nav/Com

Comms

King KX-155 - Digital Nav Com w/Indicator

Audio

PS Engineering PMA7000B - PS Audio Panel Stereo 4-Place Intercom

Transponder

Narco AT150 - Transponder

ADSB

UAvionix TailBeacon - (ADSB-Out)

EMS

JPI EDM-730 - JPI Engine Monitor

Additional Equipment

Glideslope

Garmin 106A - Glideslope

Fuel Computer

FS-450 - Fuel Flow Computer w/Totalizer

Alternator

60-Amp Alternator

Pitot Heat

Avionics Master

Fuel Pump

Electric Fuel Pump

Intercom

Intercom, Pilot & Co-Pilot PTT

Directional Gyro

Sigmatech DG

Visors

Rosen Visors

Brakes

Cleveland Brakes

Starter

Skytech Lightweight Starter

Mixture Control

Vernier Mixture

Hobbs Meter

Power Source

12-Volt Power Source

Oil Filter

Remote Oil Filter

Battery

Concorde Battery - Sealed

Interior & Exterior

Interior Notes
Interior is in Nice condition
Exterior Notes
Paint is in Nice condition

Engine & Propeller

Engine Type
Piston
Engine Count
1
Engine Make
Lycoming
Engine Model
O-360-A4M
Engine Power
180 HP

Asking Price

$99,900

Aircraft Location

Bethany, OK, USA

Listing Details

Used
For Sale

Price History

Jul 4, 2026: $99,900 - trade-a-plane

Contact Seller

First Seen: Jul 4, 2026

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Asking Price

$99,900