Aircraft Transponders for sale on eBay
  Item Description Price  
Garmin GTX 320A Transponder with tray and backplateGarmin GTX 320A Transponder with tray and backplate300.00 USD
BENDIX KING KT 71 TSO TRANSPONDER PN 066-01141-5101 WITH TRAYBENDIX KING KT 71 TSO TRANSPONDER PN 066-01141-5101 WITH TRAY140.00 USD
ARC RT-859A Aircraft Transponder – REC-Transmitter – 24V – P/N 42260-1028ARC RT-859A Aircraft Transponder – REC-Transmitter – 24V – P/N 42260-1028249.00 USD
ARC RT-859A Aircraft Transponder – REC-Transmitter – 24V – P/N 42260-1028ARC RT-859A Aircraft Transponder – REC-Transmitter – 24V – P/N 42260-102899.00 USD
TRIG TT-31 Mode S Transponder PN 00220-00-01 - As RemovedTRIG TT-31 Mode S Transponder PN 00220-00-01 - As Removed995.00 USD
Garmin ApolloSL70 Mode C Transponder Servicable Unit 430-6040-101 AvionicsGarmin ApolloSL70 Mode C Transponder Servicable Unit 430-6040-101 Avionics300.00 USD
TED TNC 104-13 Aircraft Transponder DME ADS-B Post Antenna Made in USATED TNC 104-13 Aircraft Transponder DME ADS-B Post Antenna Made in USA24.99 USD
USED Aircraft DME / Transponder Antenna P/N 100-384129USED Aircraft DME / Transponder Antenna P/N 100-384129125.00 USD
Garmin GTX-327 Transponder PN 011-00490-00 With New 2025 FAA 8130Garmin GTX-327 Transponder PN 011-00490-00 With New 2025 FAA 8130995.00 USD
Aeroflex IFR ATC600A Transponder/ DME Test setAeroflex IFR ATC600A Transponder/ DME Test set1300.00 USD
NARCO AT 50A TRANSPONDER For 30,000 Ft In TrayNARCO AT 50A TRANSPONDER For 30,000 Ft In Tray59.99 USD
TED TRANSPONDER ANTENNA -- 104-12TED TRANSPONDER ANTENNA -- 104-1239.95 USD
Apollo SL 30 SL30 SL-30 Transponder GRAY Insert Lens Free USPS Priority ShippingApollo SL 30 SL30 SL-30 Transponder GRAY Insert Lens Free USPS Priority Shipping58.00 USD
ONWA KS-200A+ Class B+ AIS Transponder 5W Marine AIS for NMEA2000 with WiFi tp1ONWA KS-200A+ Class B+ AIS Transponder 5W Marine AIS for NMEA2000 with WiFi tp1293.70 USD
ONWA KS-200A+ Class B+ AIS Transponder 5W Transmission Marine AIS with wifiONWA KS-200A+ Class B+ AIS Transponder 5W Transmission Marine AIS with wifi325.00 USD
PN: 3614009-4201 (ALT. TR-421B) - TRANSPONDERPN: 3614009-4201 (ALT. TR-421B) - TRANSPONDER400.00 USD
King KT-76 Transponder 066-1034-01King KT-76 Transponder 066-1034-0175.00 USD
Bendix/King KT76A ATC TransponderBendix/King KT76A ATC Transponder75.00 USD
Bendix King KT 79 Transponder 14V / 28V PN 066-1053-00 - mod 1,2,3 spare stockBendix King KT 79 Transponder 14V / 28V PN 066-1053-00 - mod 1,2,3 spare stock175.00 USD
Appareo Stratus ESG ADS-B Out Transponder With TrayAppareo Stratus ESG ADS-B Out Transponder With Tray1899.00 USD
uAvionix tailBeaconX TSO Mode S / ADS-B Transponder & Rear Nav LightuAvionix tailBeaconX TSO Mode S / ADS-B Transponder & Rear Nav Light2100.00 USD
aim it beacon transponderaim it beacon transponder175.00 USD
Bendix King KT 76A Transponder PN 066-1062-00 w/ New FAA 8130-3 FormBendix King KT 76A Transponder PN 066-1062-00 w/ New FAA 8130-3 Form495.00 USD
Garmin GTX 33 P/N: 011-00779-10 TransponderGarmin GTX 33 P/N: 011-00779-10 Transponder149.99 USD
Avidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics UnitAvidyne AXP340 Panel Mount Transponder 11–33VDC Aircraft Avionics Unit1190.00 USD
King KT76 Aircraft Transponder Mode C TSO With Tray Panel Mount UntestedKing KT76 Aircraft Transponder Mode C TSO With Tray Panel Mount Untested249.99 USD
GARMIN GTX-327 TRANSPONDER TRAY / RACK WITH BACKPLATE !!! P/N 115-00431-00 !!!GARMIN GTX-327 TRANSPONDER TRAY / RACK WITH BACKPLATE !!! P/N 115-00431-00 !!!175.00 USD
Garmin GTX 330 ES ATC Transponder As Is PN 011-00455-60 Fails Buttons InopGarmin GTX 330 ES ATC Transponder As Is PN 011-00455-60 Fails Buttons Inop799.99 USD
NARCO AT 150 TSO Transponder — Tray - Cable -Working When Removed -Free ShippingNARCO AT 150 TSO Transponder — Tray - Cable -Working When Removed -Free Shipping489.99 USD
ATC TRANSPONDER PN: 0661062-00, KINGATC TRANSPONDER PN: 0661062-00, KING310.00 USD