Garmin GTX 327 Mode C Transponder for Sale – Excellent Condition • P/N 011-00490-00

Garmin GTX 327 Transponder. If you’re searching for a Garmin GTX 327 Mode C transponder for sale, this solid-state unit offers proven reliability, fast altitude reporting, and seamless integration into certified aircraft. Manufactured by Garmin, the GTX 327 remains one of the most trusted legacy Mode C transponders in general aviation.

Offered in excellent working condition and installation-ready, this unit includes the original Garmin mounting tray for simplified integration.

Garmin GTX 327 Transponder

 C Transponder Specifications

This unit is identified as:

• Model: Garmin GTX 327
• Part Number: 011-00490-00
• Voltage Range: 11–33 VDC

Certifications:

• TSO-C74c, Class 1A
• JTSO-C74c, Class 1A
• FCC ID: IPH-0037600

Its wide voltage compatibility makes it suitable for a broad range of certified aircraft.

Garmin GTX 327 Transponder

Solid-State Garmin Transponder with Reliable Altitude Reporting

The GTX 327 features solid-state construction with no moving parts, helping reduce maintenance concerns and extend service life.

Performance highlights:

• Fast, accurate Mode C altitude reporting
• Rapid response to ATC interrogations
• Stable signal output
• Low electrical load
• Reduced heat generation

Pilots and avionics technicians value the GTX 327 for its dependable long-term operation.

Garmin GTX 327 Transponder

Bright Digital Display with Intuitive Controls

The Garmin GTX 327 is equipped with a sharp, high-contrast digital display designed for excellent readability in all lighting conditions.

Display advantages:

• Clear daylight readability
• Visible in low-light and night operations
• Crisp digital squawk code presentation
• Simple, intuitive control layout
• Reduced cockpit workload

Its straightforward interface allows quick code changes and system checks without distraction.

Includes Garmin Mounting Tray for Easier Installation

This listing includes:

• The unit is
• Original Garmin mounting tray (P/N 115-00285-00)

Having the correct mounting tray reduces installation time and simplifies panel integration.

Ideal Mode C Transponder for Certified Aircraft

The GTX 327 is widely used across:

• Single-engine piston aircraft
• Flight training aircraft
• Light twins
• Complex high-performance aircraft
• Fleet maintenance programs

Its compact footprint and efficient design make it a practical replacement for aging Mode C units.

Proven Garmin GTX 327 Performance in General Aviation

Pilots choose the GTX 327 for:

• Solid-state reliability
• Long service life
• Low maintenance profile
• Consistent ATC compliance
• Trusted Garmin engineering

As a legacy Garmin transponder, it continues to be a dependable solution for aircraft not requiring ADS-B integration through the transponder itself.

 Ready for Installation

If you’ve been looking for a  C transponder P/N 011-00490-00, this offering delivers:

• Excellent working condition
• Wide voltage compatibility (11–33 VDC)
• TSO-certified performance
• Included mounting tray
• Clean, installation-ready configuration
• Immediate availability

A dependable Mode C solution.
Proven Garmin reliability.
A trusted transponder ready for continued service.