Airframe APUs

Aircraft auxiliary power units (APUs) provide power to various systems when the main engines are not running. These units offer an efficient power supply for an aircraft, ensuring smooth operations and enhanced safety. Trusted manufacturers of APUs in aviation like Boeing, BAE Systems Controls Inc., and Honeywell guarantee quality and durable products meant to withstand the harsh conditions seen by aircraft. Browse our selection of aircraft APUs to find the perfect solution for your needs.
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Acquisition Unit
Acquisition Unit

Mfr Part#
775110-18-002

Auxiliary Power Unit
Auxiliary Power Unit
United Technologies Corporation

Mfr Part#
170101-106

Unit Assembly
Unit Assembly
Rosemount Aerospace Inc

Mfr Part#
8730B1-1

Fire Panel Assembly-Auxiliary Power Unit
Fire Panel Assembly-Auxiliary Power Unit
BAE Systems Controls Inc
The Boeing Company

Mfr Part#
355A5340-4

Motor, Pump-Auxiliary Power Unit Direct Current, Fuel
Motor, Pump-Auxiliary Power Unit Direct Current, Fuel
Eaton Aerospace Ltd

Mfr Part#
568-1-29407-002

Track Cover Assembly, Un-Powered, 787 PL
Track Cover Assembly, Un-Powered, 787 PL
TE Connectivity

Mfr Part#
1954396-4

Auxiliary Guide Assembly
Auxiliary Guide Assembly
The Boeing Company

Mfr Part#
452T2301-11

Duct Assembly-Turbine Exhaust Duct, Auxiliary Power Unit
Duct Assembly-Turbine Exhaust Duct, Auxiliary Power Unit
The Boeing Company

Mfr Part#
65B98701-14

Auxiliary Power Unit-Aft Mount Link Assembly
Auxiliary Power Unit-Aft Mount Link Assembly
The Boeing Company

Mfr Part#
351U8220-1

Fuel Oil HX, Auxiliary Power Unit Engine Assembly
Fuel Oil HX, Auxiliary Power Unit Engine Assembly
United Technologies Corporation

Mfr Part#
7004295H03

Auxiliary Power Unit
Auxiliary Power Unit

Mfr Part#
381326-2

Auxiliary Track Rib
Auxiliary Track Rib
The Boeing Company

Mfr Part#
116A7321-2

65B22863-22 ACPART
65B22863-22 ACPART
Drop Ships from Boeing Commercial
Boeing Distribution (formerly Aviall)
412N2022-86 ACPART
412N2022-86 ACPART
Drop Ships from Boeing Commercial
Boeing Distribution (formerly Aviall)
412W2210-53 ACPART
412W2210-53 ACPART
USM Airframe Overhauled

Mfr Part#
412W2210-53

Boeing Distribution (formerly Aviall)
412W2210-53 ACPART
412W2210-53 ACPART
USM Airframe Serviceable

Mfr Part#
412W2210-53

Boeing Distribution (formerly Aviall)
415N1004-29 ACPART
415N1004-29 ACPART
Drop Ships from Boeing Commercial
Boeing Distribution (formerly Aviall)
417N6013-2A ACPART
417N6013-2A ACPART
Drop Ships from Boeing Commercial
Boeing Distribution (formerly Aviall)
453N1602-34 ACPART
453N1602-34 ACPART
Drop Ships from Boeing Commercial
Boeing Distribution (formerly Aviall)
453N1607-12 ACPART
453N1607-12 ACPART
Drop Ships from Boeing Commercial
Boeing Distribution (formerly Aviall)

Frequently Asked Questions

What is an APU in an aircraft?

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An APU in an aircraft is a device that provides energy for functions other than propulsion, including powering hydraulic systems, air conditioning, and airframe electrical systems.

How does an aircraft APU work?

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An APU in aviation works by generating electrical power, providing air for starting engines, and powering other systems when the main engines are off.

DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. See terms & conditions.