GARMIN GTX 328 TRANSPONDER
AS REMOVED • WORKING ORDER • WITH 8130
INCLUDES AMERI-KING AK350 ENCODER + TRAYS + PLUGS + 5-AMP C/B
buy Garmin GTX 328 online. Presenting a complete, well-documented transponder package ideal for aircraft owners, avionics shops, and maintenance teams seeking a dependable Mode S solution: a Garmin GTX 328, removed in working order, backed by an 8130, and bundled with everything needed for a clean, streamlined installation.
The Garmin GTX 328 remains one of the most trusted Mode S transponders in European and international operations. Known for its reliability, compact design, and low power consumption, the 328 is an excellent choice for operators needing solid performance without complicating the electrical system or cockpit layout. Its efficiency and durability have made it a go-to solution across a wide range of aircraft types.
This particular unit comes with a significant advantage—it was removed in working order. That means no unknown history, no questionable storage conditions, and no guessing. It was actively installed, actively functioning, and removed only as part of an upgrade, offering confidence and peace of mind to its next owner.
Supporting documentation includes the FAA 8130 form, a crucial piece for traceability and compliance. In today’s aviation environment, having proper paperwork is nearly as important as the hardware itself. This unit checks that box cleanly and professionally.
buy Garmin GTX 328 online
But what truly elevates this offer is the completeness of the package. Alongside the GTX 328, you’ll receive:
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Ameri-King AK350 altitude encoder
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Mounting trays
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Plugs & connectors
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5-amp circuit breaker
Each of these components adds installation value. Installers know how time-consuming it can be to source trays and connectors separately—this bundle eliminates that hassle. The included Ameri-King AK350 encoder further enhances the transponder’s capability, allowing seamless altitude reporting to ATC. And with the circuit breaker includ, the electrical side of the installation is accounted for.
The GTX 328 continues to be a smart choice for legacy and light aircraft, especially where ADS-B mandates differ or where Mode S compliance is require without moving to full ADS-B Out equipment. Its dependable performance, straightforward interface, and Garmin build quality make it a top contender for practical, budget-friendly avionics upgrades.
Operators who prioritize documentation, known history, and installation readiness will appreciate the value of this complete package. In an era where avionics components are either backorder or incomplete on the secondary market, a transponder setup like this—with all accessories includ and solid provenance—is a rare find.
If you’re looking for a reliable, documented, installation-ready Mode S transponder system, this Garmin GTX 328 package stands ready to go to work in its next aircraft.




















