1977 Cessna 421CMulti-Engine Piston Aircraft • Irvine, CA, USA
This 1977 Cessna 421C, registration N6633T, is a well-cared-for example of the 8-passenger pressurized piston twin, often referred to as the Rolls-Royce of piston twins. The airframe has a total time of 4,230 hours with no known damage history. It is powered by two Continental GTSIO-520-L engines producing 375 horsepower each; engine one has 920 hours SMOH with a 1,600 hour TBO, and engine two has 320 hours SMOH. The propellers were overhauled 220 hours ago.
A very complete and timely annual inspection was signed off in January 2026. During this inspection, two low-side cylinders on the 920-hour engine were replaced with RAM-supplied...
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Specifications
- Category
- Multi-Engine Piston
- Intended Use
- Business, Passenger
- Useful Load
- 2,218 lbs
- Seats
- 8
Hours, Logs & Inspections
- Total Time
- 4,230 hrs
- Engine 1 Time
- 920 hrs (SMOH)
- Engine 2 Time
- 320 hrs (SMOH)
- Prop 1 Time
- 220 hrs
- Prop 2 Time
- 220 hrs
- Inspection Status
- A very complete and timely annual inspection was completed. During the inspection, two cylinders on the 920-hour engine were found to be on the low side and were replaced with RAM-supplied overhauled cylinders. These have since been flown and broken in according to RAM instructions. The annual also included replacing brake discs, pucks, and calipers with new replacements, new tires, a new main battery, and numerous smaller items, making this aircraft ready to go to work for the new buyer. Annual was signed off January 2026.
Avionics
GPS
Garmin 750 - WAAS-Enabled GPS/Comm Providing Precision Approach Capability
Comms
Collins VHF25T - Comm, NAV
AP
Cessna Navomatic - Autopilot With Yaw Damper and Altitude Hold
ADSB
Garmin GTX335 - Transponder With ADS-B Out
ADS-B In
Garmin GTX335 - Transponder With ADS-B Out
EMS
Insight - Dual Engine Monitoring System
Additional Equipment
Air Conditioning
Freon Air Conditioning
Oxygen System
Fire Detection/Extinguishing
Nacelle Fire Detection & Extinguishing System
Fuel System
Long-Range Fuel System (262 Gallons)
Interior & Exterior
- Interior Year
- 2026
- Paint Year
- 2011
- Interior Notes
- In January, a completely new interior was completed while doing the very extensive annual inspection. Beautiful tan leather seats with pilot and co-pilot seats done in lambswool. New side panels with fabric inserts, new cream-colored headliner, beautiful light tan wool carpet, dual warm burlwood veneer executive tables, and dividers.
- Exterior Notes
- In the past 5 years: new tinted heated pilot windshield, new co-pilot windshield, and all new side windows. All windows are in very nice condition. Paint was done in 2011 and remains nice and glossy with only minor exceptions.
Engine & Propeller
- Engine Type
- Piston
- Engine Count
- 2
- Engine Make
- Continental
- Engine Model
- GTSIO-520-L
- Engine Power
- 375 HP
Asking Price
$385,000
Aircraft Location
Irvine, CA, USA
Listing Details
- Used
- For Sale
Price History
Apr 22, 2026: $385,000(-$40,000) - controller
Jan 20, 2026: $425,000(+$20,000) - controller
Dec 4, 2025: $405,000(-$10,000) - controller
+2 more price changes
Contact Seller
Asking Price
$385,000
Aircraft Location
Irvine, CA, USA
Listing Details
- Used
- For Sale
Price History
Apr 22, 2026: $385,000(-$40,000) - controller
Jan 20, 2026: $425,000(+$20,000) - controller
Dec 4, 2025: $405,000(-$10,000) - controller
+2 more price changes
Contact Seller
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1977 Cessna 421C
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1977 Cessna 421C
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1977 Cessna 421C
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Asking Price
$385,000