Aircraft Transponders for sale on eBay
  Item Description Price  
ATC TRANSPONDER PN: 0661062-00, KINGATC TRANSPONDER PN: 0661062-00, KING310.00 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
Sandia Aerospace Altitude Encoder SAE 5-35Sandia Aerospace Altitude Encoder SAE 5-35125.00 USD
King KXP 756 ATC Transponder King KXP 756 ATC Transponder 250.00 USD
TED TRANSPONDER ANTENNA -- 104-12TED TRANSPONDER ANTENNA -- 104-1232.50 USD
Garmin GTX-327 Transponder. Comes with Tray. P/N 011-00490-00Garmin GTX-327 Transponder. Comes with Tray. P/N 011-00490-00895.00 USD
Apollo SL70 Mode C Transponder - Parts OnlyApollo SL70 Mode C Transponder - Parts Only100.00 USD
APPAREO STRATUS ES TRANSPONDER From Cirrus SR 22 Gen 1APPAREO STRATUS ES TRANSPONDER From Cirrus SR 22 Gen 11650.00 USD
ARC RT-359A Transponder Receiver/Transmitter P/N: 41420-0028 - Tested WorkingARC RT-359A Transponder Receiver/Transmitter P/N: 41420-0028 - Tested Working595.00 USD
Narco AT 150 TSO TransponderNarco AT 150 TSO Transponder150.00 USD
Alan ARC Cessna RT 359A Transponder 41420-1128 INOP As Removed For Parts OnlyAlan ARC Cessna RT 359A Transponder 41420-1128 INOP As Removed For Parts Only49.67 USD
Stratus ESG ADSB Out Transponder W/ Tray Appareo 153510-000017Stratus ESG ADSB Out Transponder W/ Tray Appareo 153510-0000171295.00 USD
GARMIN GTX 335R TRANSPONDER P/N 011-03301-00 With New 8130-3GARMIN GTX 335R TRANSPONDER P/N 011-03301-00 With New 8130-32500.00 USD
PARTS! Bendix/King KT-76 TSO Transponder (UNTESTED)PARTS! Bendix/King KT-76 TSO Transponder (UNTESTED)100.00 USD
GARMIN GTX-330 TRANSPONDER !!! P/N 011-00455-00 !!!GARMIN GTX-330 TRANSPONDER !!! P/N 011-00455-00 !!!792.50 USD
Garmin GTX 23 p/n 011-02803-02Garmin GTX 23 p/n 011-02803-02799.00 USD
Terra TRT 250 D Aircraft Transponder 1900-0365-00Terra TRT 250 D Aircraft Transponder 1900-0365-00400.00 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
Transponder GTX345 011-03302-00 w/ November 2025 Tested 8130Transponder GTX345 011-03302-00 w/ November 2025 Tested 81305995.00 USD
Narco AT-150 14 Volt Transponder, P/N 03606-0300 w/8130-3Narco AT-150 14 Volt Transponder, P/N 03606-0300 w/8130-3695.00 USD
Garmin GTX 330 Mode S Transponder P/N 011-00455-00 – Tested GoodGarmin GTX 330 Mode S Transponder P/N 011-00455-00 – Tested Good999.99 USD
Bendix King KT 76C Mode C TransponderBendix King KT 76C Mode C Transponder499.00 USD
Narco AT 150 TSO Transponder - As RemovedNarco AT 150 TSO Transponder - As Removed150.00 USD
RAMI – AV-74 TRANSPONDER ANTENNA – DME – ADS – B - 960 – 1220 MHzRAMI – AV-74 TRANSPONDER ANTENNA – DME – ADS – B - 960 – 1220 MHz199.00 USD
RT-859A/APX-72 TRANSPONDERRT-859A/APX-72 TRANSPONDER750.00 USD
Garmin GTX 320 Transponder PN 011-00259-00 With New July 2025 FAA 8130Garmin GTX 320 Transponder PN 011-00259-00 With New July 2025 FAA 8130500.00 USD
Garmin GTX 320A Transponder With Tray For Parts (Used & Untested)Garmin GTX 320A Transponder With Tray For Parts (Used & Untested)129.00 USD
ARC Transponder 400 Rack P/N 42290-0028ARC Transponder 400 Rack P/N 42290-002840.00 USD
Terra Transponder TRT 250 D Terra Transponder TRT 250 D 750.00 USD
KT 76a TransponderKT 76a Transponder145.00 USD