Garmin GNC 420 GPS/Comm Radio for Sale – Fully Functional • P/N 011-00506-10 • Ready for Installation
Garmin GNC 420 GPS. If you’re searching for a Garmin GNC 420 GPS/Comm for sale, this fully functional and professionally maintained unit offers dependable navigation and communication performance in one compact package. Manufactured by Garmin, the GNC 420 remains a trusted choice for certified aircraft seeking a proven IFR/VFR-capable solution.
This unit has been fully tested and verified operational, making it installation-ready and ideal for panel upgrades or replacements.
Garmin GNC 420 GPS
Garmin GNC 420 Specifications – Part Number 011-00506-10
- Model: Garmin GNC 420
- Part Number: 011-00506-10
- Configuration: Integrated GPS and VHF Comm
- Condition: Fully functional and tested
- Warranty: 30-day warranty included
- Quantity Available: 1
Proper part number identification ensures compatibility and simplifies maintenance documentation.
Garmin GNC 420 GPS
Integrated GPS and VHF Communication in One Unit
The Garmin GNC 420 combines essential cockpit functions into a streamlined, space-efficient design.
Key capabilities include:
- Aviation-grade GPS navigation
- Enroute and terminal guidance
- Approach capability (non-WAAS)
- Strong VHF communication clarity
- Reliable frequency management
This integrated design reduces panel clutter while maintaining dependable operational performance.
Garmin GNC 420 GPS
Fully Tested and Installation-Ready Avionics Solution
This GNC 420 has been:
- Professionally tested
- Verified operational
- Maintained in good working condition
- Prepared for immediate installation
The included 30-day warranty provides added confidence for aircraft owners and avionics shops.
Crisp Display and Intuitive Garmin Interface
Pilots value the GNC 420 for its:
- Clear, easy-to-read screen
- Straightforward Garmin menu structure
- Quick satellite acquisition
- Efficient flight plan entry
- Smooth frequency selection
The intuitive interface helps reduce cockpit workload in both IFR and VFR operations.
Ideal GPS/Comm Upgrade for Certified Aircraft
The Garmin GNC 420 is well suited for:
- Replacing aging legacy GPS units
- Panel modernization projects
- Budget-conscious avionics upgrades
- Certified aircraft requiring reliable GPS and comm capability
- Flight training aircraft and personal cross-country platforms
Its compact footprint makes it an efficient solution for panels where space is limited.
Trusted Garmin Engineering and Long-Term Reliability
Garmin avionics are recognized for:
- Durable construction
- Stable performance
- Long service life
- Broad industry support
- Proven general aviation track record
The GNC 420 continues to serve as a dependable GPS/Comm radio across thousands of aircraft worldwide.
Radio Ready for Service
If you’ve been looking for a Radio P/N 011-00506-10, this offering delivers:
- Fully functional condition
- Professional testing verification
- 30-day warranty
- Integrated GPS and VHF comm
- Installation-ready configuration
- Immediate availability
A reliable GPS.
A strong communication radio.
A proven Garmin solution ready for its next cockpit.




















