Aircraft Transponders for sale on eBay
  Item Description Price  
Transponder KT74 Bendix/KingTransponder KT74 Bendix/King2200.00 USD
ATC TRANSPONDER PN: 0661062-00, KINGATC TRANSPONDER PN: 0661062-00, KING310.00 USD
Matsutec HP-528A Class B+ AIS Transponder Transmission Marine AIS with GPSMatsutec HP-528A Class B+ AIS Transponder Transmission Marine AIS with GPS375.00 USD
Sandia Aerospace Altitude Encoder SAE 5-35Sandia Aerospace Altitude Encoder SAE 5-35125.00 USD
RT-859A/APX-72 TRANSPONDERRT-859A/APX-72 TRANSPONDER750.00 USD
Narco AT 150 TSO Transponder - As RemovedNarco AT 150 TSO Transponder - As Removed150.00 USD
TED TRANSPONDER ANTENNA -- 104-12TED TRANSPONDER ANTENNA -- 104-1232.50 USD
Stratus ESG ADSB Out Transponder W/ Tray Appareo 153510-000017Stratus ESG ADSB Out Transponder W/ Tray Appareo 153510-0000171295.00 USD
Garmin GTX 327 Transponder PN 011-00490-00 With New May 2025 FAA 8130Garmin GTX 327 Transponder PN 011-00490-00 With New May 2025 FAA 81301050.00 USD
Narco AT 150 TSO Transponder - As RemovedNarco AT 150 TSO Transponder - As Removed249.99 USD
BENDIX/KING KT-74 ADS-B TRANSPONDER - PN 89000007-000001 W/Rack (As Removed)BENDIX/KING KT-74 ADS-B TRANSPONDER - PN 89000007-000001 W/Rack (As Removed)1600.00 USD
ARC Transponder 400 Rack P/N 42290-0028ARC Transponder 400 Rack P/N 42290-002840.00 USD
Narco AT 150 Transponder, rated up to 30,000 feet, removed from Cessna 172Narco AT 150 Transponder, rated up to 30,000 feet, removed from Cessna 172300.00 USD
Collins TDR-950 Transponder 622-2092-001 (D2303)Collins TDR-950 Transponder 622-2092-001 (D2303)225.00 USD
DEFECTIVE BENDIX KING TRANSPONDER KT76A PN 066106200 G3DDEFECTIVE BENDIX KING TRANSPONDER KT76A PN 066106200 G3D80.00 USD
(2) Narco AT 150 Transponder (14/28 VDC) - Sold for Parts or Repair(2) Narco AT 150 Transponder (14/28 VDC) - Sold for Parts or Repair250.00 USD
Bendix King KT 76C Mode C TransponderBendix King KT 76C Mode C Transponder499.00 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
Narco Avionics Flightguard Transponder AT6-A Aircraft Airplane Unit BoxNarco Avionics Flightguard Transponder AT6-A Aircraft Airplane Unit Box45.00 USD
Garmin GTX 335 - 011-03300-00 ADSB TransponderGarmin GTX 335 - 011-03300-00 ADSB Transponder2000.00 USD
Narco AT 155 TSO Transponder with New FAA 8130-3 FormNarco AT 155 TSO Transponder with New FAA 8130-3 Form850.00 USD
Narco AT 150 TransponderNarco AT 150 Transponder150.00 USD
Sandia STX 165R Remote Mount Aircraft TransponderSandia STX 165R Remote Mount Aircraft Transponder871.00 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
NARCO AT165 ATC Transponder w/tray. Slide-In Replacement for King KT76A/KT78ANARCO AT165 ATC Transponder w/tray. Slide-In Replacement for King KT76A/KT78A850.00 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
Comant Transponder Stub AntennaComant Transponder Stub Antenna25.00 USD
Garmin GTX-335 ADS-B Transponder w/Built-in GPS & Antenna (New)Garmin GTX-335 ADS-B Transponder w/Built-in GPS & Antenna (New)3695.00 USD
KT 76a TransponderKT 76a Transponder275.00 USD
PARTS! Bendix/King KT-76 TSO Transponder (UNTESTED)PARTS! Bendix/King KT-76 TSO Transponder (UNTESTED)100.00 USD