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.
Diplexer/Dual Vor/Dual Marker/ (3) BNC Connector, 2 Hole Mount & a Black Finish. H21-1
P/N H21-1
NE
ACK Technologies
$455.99
In stock
Diplexer/Single Vor/Single Gs/ (3) BNC Connector, 2 Hole Mount & a Black Finish. H22-1
P/N H22-1
NE
ACK Technologies
$2,529.76
Price and availability checked Nov 14, 2026 MST
In stock
Triplexer/Dual VOR, single Gs, (4) BNC Connector, 2 Hole Mount & a Black Finish. H23-1
P/N H23-1
NE
ACK Technologies
$539.99
In stock
Diplexer/Dual Gs, (3) BNC Connector, 2 Hole Mount & a Black Finish. H24-1
P/N H24-1
NE
ACK Technologies
$467.99
Backorder
Quadraplexer/Dual Vor/Dual Gs/ (5) BNC Male Connector, 2 Hole Mount & a Black Finish. H96-1
P/N H96-1
NE
ACK Technologies
$1,317.26
Price and availability checked Nov 14, 2026 MST
In stock
Center Fed Loop Antenna/Single output, Tnc Female Connector, 6 Hole Mount, & a White Finish. N25-1
P/N N25-1
NE
Harris Corp
$2,659.74
Price and availability checked Nov 14, 2026 MST
Backorder
Center Fed Loop Antenna/Dual output, C Female Connector, 6 Hole Mount & a White Finish. N25-2
P/N N25-2
NE
Harris Corp
$13,799.22
Price and availability checked Nov 14, 2026 MST
Backorder
Glideslope Antenna, Pressurized Type N Female Connector, 6 Hole Mount & a White Finish.
P/N DM N25-3
NE
Harris Corp
$3,808.22
Price and availability checked Nov 14, 2026 MST
Backorder
Marker Beacon Antenna/Low profile, Tnc Female Connector, 6 Hole Mount & a White Finish. N27-1/A
P/N N27-1/A
NE
Harris Corp
$7,084.88
Price and availability checked Nov 14, 2026 MST
Backorder
Marker Beacon Antenna/low profile, C Female Connector, 6 Hole Mount & a White Finish. N27-2
P/N N27-2
NE
Harris Corp
$2,444.40
Price and availability checked Nov 14, 2026 MST
Backorder
Marker Beacon Antenna/Low profile, BNC Female Connector, 6 Hole Mount & a White Finish. Dm N27-3
P/N DM N27-3
NE
Harris Corp
$7,647.48
Price and availability checked Nov 14, 2026 MST
Backorder
Vor/Loc Balanced Loop Antenna/Blade Type/Two Outputs, (2) Tnc Connectors, 8 Hole Mount, 2 Grounding Studs & a White Finish. N4-15
P/N N4-15
NE
Blade
$37,696.14
Price and availability checked Nov 14, 2026 MST
Backorder
T-Cable For Dm N4-15 And Dm N4-45
P/N DM N4-15-5
NE
Harris Corp
$646.02
Price and availability checked Nov 14, 2026 MST
Backorder
Radiating Element For Dm N4-15/Single VOR Antenna Dm N4-15-3/D
P/N DM N4-15-3/D
NE
ADI
$11,102.62
Price and availability checked Nov 14, 2026 MST
Backorder
Phasing Coupler/One output, for use with DMN4-17N N4-17-2
P/N N4-17-2
NE
Harris Corp
$1,804.20
Price and availability checked Nov 14, 2026 MST
Backorder
Phasing Coupler/For use with DMN4-17P/R, dual output Dm N4-17-4
P/N DM N4-17-4
NE
Harris Corp
$3,181.60
Price and availability checked Nov 14, 2026 MST
Backorder
Vor/Loc/Gs Balanced Loop Antenna/Blade Type/One Output N4-17/N
P/N N4-17/N
NE
Blade
$9,758.20
Price and availability checked Nov 14, 2026 MST
In stock
Vor/Loc Balance Loop Antenna/Blade Type/Two Receiver Outputs/No Gs Frequencies N4-17/P
P/N N4-17/P
NE
Blade
$9,855.20
Price and availability checked Nov 14, 2026 MST
Backorder
Vor/Loc/Gs Balanced Loop Antenna/Blade Type/One Output N4-17/S
P/N N4-17/S
NE
Blade
$9,806.70
Price and availability checked Nov 14, 2026 MST
Backorder
Radiating Element For Dm N4-17 N4-17-1/N
P/N N4-17-1/N
NE
ADI
$2,145.64
Price and availability checked Nov 14, 2026 MST
In stock
Navigation Antenna Dm N4-21-3
P/N DM N4-21-3
NE
Ati
$8,804.21
Price and availability checked Nov 14, 2026 MST
Backorder
Localizer Antenna/Single loop, C connector, two receiver output
P/N DM N4-26
NE
Harris Corp
$4,314.56
Price and availability checked Nov 14, 2026 MST
Backorder
Diplexer/Dual Vor/Dual Marker/ (3) BNC Connector, 2 Hole Mount & a Black Finish. H21-1
NE
P/N H21-1
ACK Technologies
$455.99
In stock
Price check pending
Diplexer/Single Vor/Single Gs/ (3) BNC Connector, 2 Hole Mount & a Black Finish. H22-1
NE
P/N H22-1
ACK Technologies
$2,529.76
Price and availability checked Nov 14, 2026 MST
In stock
Triplexer/Dual VOR, single Gs, (4) BNC Connector, 2 Hole Mount & a Black Finish. H23-1
NE
P/N H23-1
ACK Technologies
$539.99
In stock
Price check pending
Diplexer/Dual Gs, (3) BNC Connector, 2 Hole Mount & a Black Finish. H24-1
NE
P/N H24-1
ACK Technologies
$467.99
Backorder
Price check pending
Quadraplexer/Dual Vor/Dual Gs/ (5) BNC Male Connector, 2 Hole Mount & a Black Finish. H96-1
NE
P/N H96-1
ACK Technologies
$1,317.26
Price and availability checked Nov 14, 2026 MST
In stock
Center Fed Loop Antenna/Single output, Tnc Female Connector, 6 Hole Mount, & a White Finish. N25-1
NE
P/N N25-1
Harris Corp
$2,659.74
Price and availability checked Nov 14, 2026 MST
Backorder
Center Fed Loop Antenna/Dual output, C Female Connector, 6 Hole Mount & a White Finish. N25-2
NE
P/N N25-2
Harris Corp
$13,799.22
Price and availability checked Nov 14, 2026 MST
Backorder
Glideslope Antenna, Pressurized Type N Female Connector, 6 Hole Mount & a White Finish.
NE
P/N DM N25-3
Harris Corp
$3,808.22
Price and availability checked Nov 14, 2026 MST
Backorder
Marker Beacon Antenna/Low profile, Tnc Female Connector, 6 Hole Mount & a White Finish. N27-1/A
NE
P/N N27-1/A
Harris Corp
$7,084.88
Price and availability checked Nov 14, 2026 MST
Backorder
Marker Beacon Antenna/low profile, C Female Connector, 6 Hole Mount & a White Finish. N27-2
NE
P/N N27-2
Harris Corp
$2,444.40
Price and availability checked Nov 14, 2026 MST
Backorder
Marker Beacon Antenna/Low profile, BNC Female Connector, 6 Hole Mount & a White Finish. Dm N27-3
NE
P/N DM N27-3
Harris Corp
$7,647.48
Price and availability checked Nov 14, 2026 MST
Backorder
Vor/Loc Balanced Loop Antenna/Blade Type/Two Outputs, (2) Tnc Connectors, 8 Hole Mount, 2 Grounding Studs & a White Finish. N4-15
NE
P/N N4-15
Blade
$37,696.14
Price and availability checked Nov 14, 2026 MST
Backorder
T-Cable For Dm N4-15 And Dm N4-45
NE
P/N DM N4-15-5
Harris Corp
$646.02
Price and availability checked Nov 14, 2026 MST
Backorder
Radiating Element For Dm N4-15/Single VOR Antenna Dm N4-15-3/D
NE
P/N DM N4-15-3/D
ADI
$11,102.62
Price and availability checked Nov 14, 2026 MST
Backorder
Phasing Coupler/One output, for use with DMN4-17N N4-17-2
NE
P/N N4-17-2
Harris Corp
$1,804.20
Price and availability checked Nov 14, 2026 MST
Backorder
Phasing Coupler/For use with DMN4-17P/R, dual output Dm N4-17-4
NE
P/N DM N4-17-4
Harris Corp
$3,181.60
Price and availability checked Nov 14, 2026 MST
Backorder
Vor/Loc/Gs Balanced Loop Antenna/Blade Type/One Output N4-17/N
NE
P/N N4-17/N
Blade
$9,758.20
Price and availability checked Nov 14, 2026 MST
In stock
Vor/Loc Balance Loop Antenna/Blade Type/Two Receiver Outputs/No Gs Frequencies N4-17/P
NE
P/N N4-17/P
Blade
$9,855.20
Price and availability checked Nov 14, 2026 MST
Backorder
Vor/Loc/Gs Balanced Loop Antenna/Blade Type/One Output N4-17/S
NE
P/N N4-17/S
Blade
$9,806.70
Price and availability checked Nov 14, 2026 MST
Backorder
Radiating Element For Dm N4-17 N4-17-1/N
NE
P/N N4-17-1/N
ADI
$2,145.64
Price and availability checked Nov 14, 2026 MST
In stock
Navigation Antenna Dm N4-21-3
NE
P/N DM N4-21-3
Ati
$8,804.21
Price and availability checked Nov 14, 2026 MST
Backorder
Localizer Antenna/Single loop, C connector, two receiver output
NE
P/N DM N4-26
Harris Corp
$4,314.56
Price and availability checked Nov 14, 2026 MST
Backorder