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1973 Cessna 421BMulti-Engine Piston Aircraft • OK, USA

This 1973 Cessna 421B, registration N42YZ, is offered for sale at $339,000 and presents as a well-equipped, cross-country-capable piston twin with an airframe total time of 7,801 hours. The aircraft has been the subject of extensive upgrades, including a RAM engine conversion with both Continental GTSIO-520H engines receiving RAM overhauls in January 2018. Each engine produces 375 horsepower and has approximately 754 hours since major overhaul, with 846 hours remaining to the 1,600-hour TBO. Matching Hartzell PHC-C3YD three-blade propellers were installed new at the same time and also show 754 hours since new.

The avionics suite is centered...

Year
1973
Make
Cessna
Series
421 Golden Eagle
Model
421B
Tail #
N42YZ
Serial #
421B0385

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Specifications

Category
Multi-Engine Piston
Intended Use
Business
Flight Rules
IFR
Seats
6

Hours, Logs & Inspections

Total Time
7,801 hrs
Engine 1 Time
754 hrs (SMOH)
Engine 2 Time
754 hrs (SMOH)
Prop 1 Time
754 hrs (SNEW)
Prop 2 Time
754 hrs (SNEW)

Avionics

PFD

Garmin G600 - Primary Flight Display

GPS

Garmin GTN 750 - GTN Nav/Com and GTN Nav/Com

Traffic

Garmin GTS 800 - GTS Active Traffic System

Audio

Garmin GMA 35 - GMA Remote Audio Panel

ADSB

Garmin GTX 33 - GTX Remote Transponder and GTX Transponder

EMS

JPI EDM 700 - Dual JPI Engine Monitors

AP

S-TEC 55X - S-TEC System Autopilot

fuelFlow

Shadin - Fuel Flow

MFD

Garmin G600 - Multi-Function Display, GTN Multi-Function Display

Comms

Garmin GTN 750 - GTN and GTN WAAS GPS/Nav/Coms

Transponder

Garmin GTX 33 - GTX and GTX Transponders

ADS-B In

ADS-B Equipped

Additional Equipment

Fuel System

248 Gallon Fuel

Brakes

Cleveland - Brake Conversion

Vortex Generators

Vortex Generators with Gross Weight Increase to 7579 pounds

Entertainment System

Dual CD/DVD Players in Cabin

Door

Air Stair Door Saver

Lighting

Whelen - LED Nav and Strobe, Tail Flood Light

Airframe Modification

Aft Body Strikes

Air Conditioning

JB Air - JB Conditioning

Pressurization

Pressurized

Oxygen System

Wheels and Brakes

Cleveland - Wheels Brakes

Aerodynamic Improvements

Dual Aft Body Strakes, Vortex Generators

Exterior Lighting

Whelen LED - LED Exterior Lighting Including LED Navigation and Strobe Lights with Tail Floodlight

Interior & Exterior

Interior Notes
Executive Cabin Includes Dual CD/DVD Entertainment Systems and an Air Stair Entry for Convenient Passenger Access.
Exterior Notes
Equipped with Whelen LED Exterior Lighting, Including LED Navigation and Strobe Lights with a Tail Floodlight.

Engine & Propeller

Engine Type
Piston
Engine Count
2
Engine Make
Continental
Engine Model
GTSIO520H
Engine Power
375 HP
Propeller Model
Hartzell PHC-C3YD-2UF 3-Blade

Asking Price

$339,000

Aircraft Location

OK, USA

Listing Details

Used
For Sale

Price History

Aug 31, 2026: $339,000 - controller

Aug 4, 2026: $339,000 - trade-a-plane

Contact Seller

First Seen: Aug 4, 2026

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Asking Price

$339,000