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How Transponders Work
Garmin GTX 327 Review
Garmin GTX 330 Review
Apollo SL 70 Review
Altitude Encoders
Garmin Panel Mount
G500, G600, G1000
GTN series
GNS 530
GNS 430
GNS 480
GNC 300XL, 250XL, 155XL
GTX 330, 327, 320
GMA audio panels
Garmin Portables
Aera series
GPSMAP 696, 496, 396
296, 295, 196, 195
Aspen
Avidyne
IFD 440, 540, 550
Dynon
uAvionix
BendixKing
KSN 770
KLN 94, 90B, 89B
KX 155
KX 165
KX 170B
KN 53
KY 97A 96A 92
KY 196A 197A
KMA 24 20, KA 134
Stratus ADS-B Receivers
Trig Avionics
Apollo SL-30 & SL-40
MX20, MX200 MFD
Slide-in Replacements
Michel/TKM MX series
Narco MK-12D
PS Engineering Audio
Aviation Headsets
Handheld Transceivers
VAL Avionics
Narco
Collins
Terra
Radar Equipment
Stormscopes & StrikeFinders
XM Weather Receivers
TCAS & TCAD Traffic Avoidance
Aircraft Intercoms
Autopilots
Transponders
Encoders
DME
HSI
Argus, Moving Maps
Cessna/ARC Radios
Indicators & Gauges
Aviation Tools
Aircraft For Sale
Single Engine
Multi Engine
Aircraft Transponders for sale on
eBay
Item Description
Price
Sandia Aerospace Altitude Encoder SAE 5-35
195.00 USD
Transponder
100.00 USD
Alpha 745-419-25-001 XP-EDH4 Transponder
79.99 USD
PN: 3614009-4201 (ALT. TR-421B) - TRANSPONDER
400.00 USD
Stratus ESG Transponder by Appareo, refurbished, no tray / rack
2000.00 USD
Garmin GTX-327 Transponder PN 011-00490-00
639.00 USD
GARMIN GTX 335 ADS-B OUT MODE S TRANSPONDER WITH GPS P/N 011-03300-40
1700.00 USD
GARMIN GTX 335 - 011-03300-00
2400.00 USD
Stratus ESG Transponder by Appareo, no rack
1200.00 USD
4401-1-250 Becker Avionic ATC 4401 Transponder (Core)
308.00 USD
Bendix King KT 76A Transponder Good
250.00 USD
Garmin GTX-327 Transponder PN 011-00490-00
749.00 USD
ARC RT359A Transponder, yellow tagged
865.00 USD
Overhauled Narco AT-150 TSO Transponder (14/28V) w/ Tray – FAA 8130-3 (4/2025)
777.00 USD
Serviced Narco AT-50 TSO Transponder w/ Tray pre-wired – FAA 8130-3 (4/2025)
777.00 USD
Teledyne Electronics TS-4077 / APM-424 (V) Transponder Test Set With Cables_
1500.00 USD
BENDIX KING KT 76C ATC TRANSPONDER P/N: 066-01156-0101 With tray
500.00 USD
Used R.A. Miller Industries Inc. (RAMI) Antenna Transponder p/n AV-22(23936)
27.00 USD
Becker transponder ATC 4401 - Mode A/C with ATC encoder & wiring harness
1200.00 USD
GARMIN GTX 330 TRANSPONDER PN 011-00455-00 - Needs Repair
695.00 USD
GARMIN GTX-330ES ADS-B COMPLIANT TRANSPONDER WITH TRAY, BACKPLATE AND CONNECTOR
1500.00 USD
Stratus ES Transponder P/N: 153510-00069
1425.00 USD
Garmin Transponder GTX320A with Tray
550.00 USD
Apollo SL 40 SL40 SL-40 Transponder GRAY Insert Lens Free USPS Priority GARMIN
58.00 USD
APPAREO STRATUS ES TRANSPONDER P/N 153510-000069 & STRATUS 3i REMOTE ADSB IN/OUT
1500.00 USD
011-00455-60 Garmin GTX-330ES ADS-b Transponder with Tray, Mods (Volts: 14-28)
1589.00 USD
US Gables G-1736 Transponder Control PANEL Boeing Ships Free
299.95 USD
Bendix/King KT-76A ATC Transponder 13.75V PN 066-1062-00
145.95 USD
Comant DME/Transponder antenna, new condition. CI 110-40-30
400.00 USD
ELECTRIC DUAL TRANSPONDER ADAPTER / Model 1080 / 098051-0100
299.00 USD