Save time and frustration – order a compatible wiring harness that is pre-made and ready to be installed with your Trig TT21/TT22 transponder.
Using aviation grade wiring and high quality materials, Trig harnesses are fully tested and quality controlled. Whilst they are not certified, they will provide you with a reliable, faster and easier installation. These harnesses are popular with light-sport , experimental and homebuilt aircraft owners.


ALL TRIG PRODUCTS COME WITH A 2 YEAR WARRANTY FROM DATE OF PURCHASE