Aircraft Transponders for sale on eBay
  Item Description Price  
Garmin GTX-330 Transponder (Standard, Non-ES) – Like New – Complete PackageGarmin GTX-330 Transponder (Standard, Non-ES) – Like New – Complete Package960.00 USD
NARCO AT165 TRANSPONDER W/ 8130 PN: AT165NARCO AT165 TRANSPONDER W/ 8130 PN: AT165999.99 USD
Bendix King display Transponder PN# 037-00078-0000Bendix King display Transponder PN# 037-00078-0000350.00 USD
S-TEC ABSOLUTE PRESSURE TRANSDUCER PN 0111 (Metal case) new styleS-TEC ABSOLUTE PRESSURE TRANSDUCER PN 0111 (Metal case) new style350.74 USD
Garmin GTX 327 Mode C TransponderGarmin GTX 327 Mode C Transponder749.00 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 AT150 Transponder w/ Rack 14/28v WARRANTY (1025-161)Narco AT150 Transponder w/ Rack 14/28v WARRANTY (1025-161)395.00 USD
Trig TT22 Mode S TransponderTrig TT22 Mode S Transponder1500.00 USD
Sandia STX 165 TransponderSandia STX 165 Transponder1700.00 USD
BENDIX KING KT 76C ATC TRANSPONDER P/N: 066-01156-0101 With trayBENDIX KING KT 76C ATC TRANSPONDER P/N: 066-01156-0101 With tray450.00 USD
Narco AT 150 TSO Transponder - Serviced with New FAA 8130-3 FormNarco AT 150 TSO Transponder - Serviced with New FAA 8130-3 Form750.00 USD
Stratus ESG ADSB Out Transponder W/ Tray Appareo 153510-000017Stratus ESG ADSB Out Transponder W/ Tray Appareo 153510-0000171295.00 USD
Bendix King KT-76A Transponder with trayBendix King KT-76A Transponder with tray99.00 USD
Garmin GTX 23 p/n 011-02803-02Garmin GTX 23 p/n 011-02803-02799.00 USD
Apollo SL70 P/N 430-6090-100Apollo SL70 P/N 430-6090-100550.00 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
Narco AT 150 TSO Transponder - As RemovedNarco AT 150 TSO Transponder - As Removed249.99 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
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
Sandia Aerospace STX 165 Compact Panel Mounted Mode C Transponder P/N: 305832-00Sandia Aerospace STX 165 Compact Panel Mounted Mode C Transponder P/N: 305832-001689.00 USD
GARMIN GTX 33ES ADS-B Out TRANSPONDER PN 011-00779-30GARMIN GTX 33ES ADS-B Out TRANSPONDER PN 011-00779-30850.00 USD
Garmin GTX 327 Mode C TransponderGarmin GTX 327 Mode C Transponder749.00 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 Avionics Flightguard Transponder AT6-A Aircraft Airplane Unit BoxNarco Avionics Flightguard Transponder AT6-A Aircraft Airplane Unit Box45.00 USD
Narco AT 150 TSO Transponder - As RemovedNarco AT 150 TSO Transponder - As Removed150.00 USD
MICROAIR Avionics T2000UAV-L-01 TransponderMICROAIR Avionics T2000UAV-L-01 Transponder799.95 USD
Garmin Transponder GTX320A P/N 011-00728-00Garmin Transponder GTX320A P/N 011-00728-00399.00 USD
Antenna CI-105 DME/Transponder with 8130Antenna CI-105 DME/Transponder with 8130145.00 USD
Transponder KT74 Bendix/KingTransponder KT74 Bendix/King2900.00 USD
ATC TRANSPONDER PN: 0661062-00, KINGATC TRANSPONDER PN: 0661062-00, KING310.00 USD