
Avionics & Electrical Parts
Buy navigation, communication and cockpit electronics with confidence.
Navigation, communication and cockpit electronics have to match your aircraft exactly. Aviatrading helps buyers find avionics and electrical parts from airlines, MROs, avionics shops and parts traders — with the part number, condition and certificate type on every listing and the seller one message away.
Avionics are bought on part number and paperwork
Avionics are among the most configuration-sensitive parts on an aircraft. Two units can look identical and share most of a part number, yet differ in modification status or software and not be interchangeable.
That is why buying avionics comes down to two things: the exact part number and the paperwork behind it. On Aviatrading you can search by part number, compare offers side by side and ask the seller to confirm the details before you buy.
What you can source
Buyers on Aviatrading source:
- Navigation — VOR/ILS receivers, GPS units, ADF, DME, inertial reference units.
- Communication — VHF and HF radios, audio control panels, satellite communication units.
- Cockpit displays and instruments — display units, standby instruments, control panels.
- Surveillance — transponders, TCAS, weather radar components.
- Flight control and management — flight control computers, autopilot servos, FMS units.
- Electrical power — generators, starter-generators, transformer rectifier units, batteries, wiring harnesses and connectors.

Match the exact configuration
Before you order, check that the unit fits your aircraft:
- the full part number, including the dash number;
- the modification (mod) status shown on the data plate;
- the software version for software-loaded units;
- interchangeability notes in the component maintenance manual or the illustrated parts catalog.
Ask the seller to send a photo of the data plate. It takes a minute and avoids the most common avionics return.

Tested, certified and traceable
An avionics unit is usually sold as overhauled, repaired, inspected/tested or as removed. For anything but "as removed", ask for:
- the release certificate — FAA 8130-3 or EASA Form 1 — for the current condition;
- the shop's test report showing what was tested and when;
- part and serial numbers that match the unit.
Our guide to FAA 8130-3 and EASA Form 1 shows where to find the status and approval on the certificate.

Replacement, exchange or upgrade
Depending on urgency and budget, you can:
- buy outright — a serviceable or new unit you keep;
- take an exchange — a serviceable unit now, with your removed unit returned as a core;
- repair your own unit — the cheapest option when the aircraft can wait;
- upgrade — move to a newer standard when the old one is obsolete or hard to find.
Electrical parts such as generators and starter-generators are commonly traded on exchange, too. Browse electrotechnical equipment in the catalog.
How to buy on Aviatrading
- Search by the full part number, or browse on-board equipment.
- Compare condition and certificate type across sellers.
- Ask the seller to confirm mod status, software version and test date.
- Post an RFQ if the unit is not listed.
- Check the documents and agree price, terms and delivery with the seller.
Looking for other parts? See all aircraft parts for sale.
Why avionics buyers use Aviatrading
Find the right unit faster and check it before you commit.
Exact part number search
Search by the full part number, including the dash number, and compare offers.
Certificate type on every listing
See whether a unit comes with FAA 8130-3, EASA Form 1 or another release.
Ask the seller directly
Confirm mod status, software version and test date before you buy.
Sellers worldwide
Airlines, MROs, avionics shops and parts traders list their stock.
Common avionics and electrical parts
| Group | Examples |
|---|---|
| Navigation | VOR/ILS receivers, GPS units, DME, ADF, inertial reference units |
| Communication | VHF/HF radios, audio control panels, SATCOM units |
| Displays and instruments | Display units, standby instruments, control panels |
| Surveillance | Transponders, TCAS units, weather radar parts |
| Flight control and management | Flight control computers, autopilot servos, FMS units |
| Electrical power | Generators, starter-generators, TRUs, batteries, harnesses |


