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KT 74 Transponder

ADS-B Out Transponder

The KT 74 is an ADS-B Out transponder that enables you to comply with the mandate to have ADS-B in your aircraft by January 1, 2020. It is a slide-in replacement for your existing KT 76 and KT 78 transponders. The KT 74 broadcasts on 1090 MHz, and can be expanded to also receive ADS-B In using UAT, providing you with weather and traffic information.


For owners that currently have a panel mounted WAAS GPS, the KT 74 is the most affordable option. KT 76 and KT 78 owners save even more as the KT 74 in a slide-in replacement for those transponders.


As a slide-in replacement for your existing transponder, no time is spent cutting your panel or mounting rack, replacing mounting trays or installing a new wiring harness. Within a few hours, your aircraft will be ADS-B compliant.


The KT 74 has a black powder-coated aluminum bezel and easy to read light blue LCD display to maintain the quality and feel you have come to expect with BendixKing.

Click below to find a dealer and request a quote.

Physical Description

  • 1.7in (43mm) x 6.3in (160mm) x 10.7in (272mm)
  • 3 lbs (1.35 kg)
  • Operating Temperature: -25 C to +70 C
  • 11 - 33 V
  • Typical Current Consumption (at 14V) Idle: 0.22 A, Active: 0.45 A
  • Nominal Transmitter Power: 240 W at connector


  • Class 1 Mode S Level 2 els
  • TSO C112D, C166B and ETSO C112C, C166B
  • DO-160G, DO-181E, DO-260B Class B1S, DO-178B Level B, DO-254 Level C

Available Downloads  (2)
Available Downloads  (2)
KT 74 Brochure
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KT 74 ADS-B Out Enabled Mode S Transponder Pilot's Guide
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*Prices listed are manufacturer’s suggested retail prices (MSRP).  Actual price is determined by BendixKing’s authorized dealers and may vary depending on, among other things, country, region, installation costs and any additional parts that may be required.  For more complete pricing information, please contact an authorized BendixKing dealer.