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American Aviation Parts datum · avionics

Avionics

ATA · 5382 parts

Avionics are the electronic systems that handle communication, navigation, monitoring, and flight management in an aircraft — from panel-mounted radios and transponders to GPS navigators, audio panels, and engine instruments. This category covers avionics units and related hardware for general-aviation aircraft, including equipment from manufacturers such as Garmin, BendixKing, and Icom. Every purchase here is self-serve from start to finish. Use the search bar if you already know the part number, or browse the listings below to compare units by price and availability. If you are not sure whether a unit fits your aircraft, the Aircraft Finder matches parts to your specific make and model using FAA aircraft data, so you can confirm fitment before you buy — no phone calls and no quote requests. Documentation matters in avionics. Where available, eligible items include FAA Form 8130-3 airworthiness documentation; check the individual product listing for the paperwork supplied with each unit. Listings also show condition, so you can tell at a glance whether a unit is new, overhauled, or serviceable.
Xm Weather Data Antenna/High Gain, Connector: Tnc (female), 26 dB gain, Color: glossy white, Shape: teardrop Ci 420-16
Xm Weather Data Antenna/High Gain, Connector: Tnc (female), 26 dB gain, Color: glossy white, Shape: teardrop Ci 420-16
NE
P/N CI 420-16 Comant
$1,270.25
Price and availability checked Nov 14, 2026 MST
Backorder
GPS Antenna/Tnc Connector (female), 26.5 dB Gain, Teardrop, glossy white Ci 420-220
GPS Antenna/Tnc Connector (female), 26.5 dB Gain, Teardrop, glossy white Ci 420-220
NE
P/N CI 420-220 Comant
$586.58
Price and availability checked Nov 14, 2026 MST
In stock
GPS Antenna/Tnc Connector (female), 17.0 dB Gain, Teardrop, Arinc, glossy white Ci 420-221
GPS Antenna/Tnc Connector (female), 17.0 dB Gain, Teardrop, Arinc, glossy white Ci 420-221
NE
P/N CI 420-221 Comant
$624.90
Price and availability checked Nov 14, 2026 MST
In stock
GPS Antenna/Tnc Connector (female), Passive,teardrop, glossy white
GPS Antenna/Tnc Connector (female), Passive,teardrop, glossy white
NE
P/N CI-420-230 Comant
Quote only
Backorder
Iridium Antenna/1616-1626 MHz, Connector: Tnc (female), Color: glossy white, Shape: teardrop Ci 420-490
Iridium Antenna/1616-1626 MHz, Connector: Tnc (female), Color: glossy white, Shape: teardrop Ci 420-490
NE
P/N CI 420-490 Comant
$838.94
Price and availability checked Nov 14, 2026 MST
In stock
Waas GPS Antenna/Tnc Connector (female), 26.5 dB Gain, oval shape, glossy white Ci 428-200
Waas GPS Antenna/Tnc Connector (female), 26.5 dB Gain, oval shape, glossy white Ci 428-200
NE
P/N CI 428-200 Comant
$907.79
Price and availability checked Nov 14, 2026 MST
In stock
Waas GPS Xm Combo Antenna/Tnc/blue and Tnc/red Connector (female), 26.5 dB Gain, Color: glossy white, Shape: oval Ci 428-410
Waas GPS Xm Combo Antenna/Tnc/blue and Tnc/red Connector (female), 26.5 dB Gain, Color: glossy white, Shape: oval Ci 428-410
NE
P/N CI 428-410 Comant
$1,717.80
Price and availability checked Nov 14, 2026 MST
In stock
Comdat Waas GPS Antenna/Frequency 1575.42, 50 ohms, 26.5db, color: glossy white, female Tnc connector, oval shape. Ci 429-200
Comdat Waas GPS Antenna/Frequency 1575.42, 50 ohms, 26.5db, color: glossy white, female Tnc connector, oval shape. Ci 429-200
NE
P/N CI 429-200 Comant
$977.61
Price and availability checked Nov 14, 2026 MST
In stock
Waas GPS Xm Comdat Antenna, Tnc/blue and Tnc/red (female), 25 dB gain, Shape: oval, Color: glossy white Ci 429-410
Waas GPS Xm Comdat Antenna, Tnc/blue and Tnc/red (female), 25 dB gain, Shape: oval, Color: glossy white Ci 429-410
NE
P/N CI 429-410 Comant
$2,094.87
Price and availability checked Nov 14, 2026 MST
In stock
Iridium Satcom Antenna/Single Channel, Connector: Tnc (female), Color: glossy white, Shape: round Ci 490-490 — photo coming soon
Iridium Satcom Antenna/Single Channel, Connector: Tnc (female), Color: glossy white, Shape: round Ci 490-490
NE
P/N CI 490-490 Comant
$838.94
Price and availability checked Nov 14, 2026 MST
In stock
VOR Antenna Coupler/Bnc Female Connector, 108-118 MHz, 50 Ohms Ci 502
VOR Antenna Coupler/Bnc Female Connector, 108-118 MHz, 50 Ohms Ci 502
NE
P/N CI 502 Comant
$332.71
Price and availability checked Nov 14, 2026 MST
In stock
Gs Antenna Coupler/Bnc Female Connector, 329-335 MHz, 50 Ohms Ci 503
Gs Antenna Coupler/Bnc Female Connector, 329-335 MHz, 50 Ohms Ci 503
NE
P/N CI 503 Comant
$321.22
Price and availability checked Nov 14, 2026 MST
In stock
VOR Gs Diplexer/Bnc Female Connector, 108-118 MHz and 329-335 MHz, 50 Ohms CI-505
VOR Gs Diplexer/Bnc Female Connector, 108-118 MHz and 329-335 MHz, 50 Ohms CI-505
NE
P/N CI-505 Comant
$383.78
Price and availability checked Nov 14, 2026 MST
In stock
VOR Gs Diplexer/Tnc antenna connector, 108-118 MHz and 329-335 MHz, 50 Ohms Ci 505-TNC
VOR Gs Diplexer/Tnc antenna connector, 108-118 MHz and 329-335 MHz, 50 Ohms Ci 505-TNC
NE
P/N CI 505-TNC Comant
$408.83
Price and availability checked Nov 14, 2026 MST
Backorder
VOR Gs Diplexer Ci 507
VOR Gs Diplexer Ci 507
NE
P/N CI 507 Comant
$273.71
Price and availability checked Nov 14, 2026 MST
In stock
Coupler/1 VOR, 1 Gs with Tnc connector Ci 507-2
Coupler/1 VOR, 1 Gs with Tnc connector Ci 507-2
NE
P/N CI 507-2 Comant
$481.81
Price and availability checked Nov 14, 2026 MST
In stock
Marker Beacon Antenna Coupler/Bnc Female Connector, 75 MHz, 50 Ohms Ci 509
Marker Beacon Antenna Coupler/Bnc Female Connector, 75 MHz, 50 Ohms Ci 509
NE
P/N CI 509 Comant
$325.92
Price and availability checked Nov 14, 2026 MST
In stock
Resistive Coupler/For CI-4057KC
Resistive Coupler/For CI-4057KC
NE
P/N CI-510C Comant
Quote only
Backorder
Antenna Splitter/Bnc connector, Dual VOR Loc Gs, Gasket not included Ci 5120
Antenna Splitter/Bnc connector, Dual VOR Loc Gs, Gasket not included Ci 5120
NE
P/N CI 5120 Comant
$461.24
Price and availability checked Nov 14, 2026 MST
In stock
Defective CI-420-1 Xm Satellite Antenna S/N: 305700 Ci 420-1 — photo coming soon
Defective CI-420-1 Xm Satellite Antenna S/N: 305700 Ci 420-1
NE
P/N CI 420-1 Comant
$1,215.03
Price and availability checked Nov 14, 2026 MST
In stock
Software/Programming software for part# IC-A220 radio.  CS-A220
Software/Programming software for part# IC-A220 radio. CS-A220
NE
P/N CS-A220 ADI
$73.71
Price and availability checked Nov 1, 2026 MST
Backorder
FR6000 W/Duplexer & Power Supply/400-470MHz CY-6000-41D
FR6000 W/Duplexer & Power Supply/400-470MHz CY-6000-41D
NE
P/N CY-6000-41D ICOM
Quote only
Backorder
Antenna Blade D120167-R — photo coming soon
Antenna Blade D120167-R
NE
P/N D120167-R Blade
$1,173.13
Price and availability checked Nov 14, 2026 MST
Backorder