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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Auxiliary Power Unit-Demountable
Auxiliary Power Unit-Demountable

Mfr Part#
4502423

Unit Assembly
Unit Assembly
Telair International GmbH

Mfr Part#
450301-3

Auxiliary Guide Assembly
Auxiliary Guide Assembly
The Boeing Company

Mfr Part#
451W4170-6

Auxiliary Guide Assembly
Auxiliary Guide Assembly
The Boeing Company

Mfr Part#
451W4169-6

Auxiliary Guide Assembly
Auxiliary Guide Assembly
The Boeing Company

Mfr Part#
451W4169-4

Auxiliary Guide Assembly
Auxiliary Guide Assembly

Mfr Part#
451W4169-5

Auxiliary Guide Assembly
Auxiliary Guide Assembly

Mfr Part#
451W4169-3

Auxiliary Guide Assembly
Auxiliary Guide Assembly

Mfr Part#
451W4170-4

Auxiliary Guide Assembly
Auxiliary Guide Assembly

Mfr Part#
451W4169-1

Auxiliary Installation
Auxiliary Installation

Mfr Part#
451W4370-1

Switch, Engine Fire Shutoff, Auxiliary Power Unit, No Longer
Switch, Engine Fire Shutoff, Auxiliary Power Unit, No Longer
Korry Electronics

Mfr Part#
417000-103

Cap Oil Filter, Auxiliary Power Unit
Cap Oil Filter, Auxiliary Power Unit
Parker Hannifin

Mfr Part#
417-339

Auxiliary Power Unit
Auxiliary Power Unit

Mfr Part#
417N3011-1202D

Intake Assembly - Auxiliary Power Unit
Intake Assembly - Auxiliary Power Unit

Mfr Part#
AHL7005-509

Intake Assembly - Auxiliary Power Unit
Intake Assembly - Auxiliary Power Unit

Mfr Part#
AHL7005-507

SUPT Assembly
SUPT Assembly

Mfr Part#
AHM7007-505

Auxiliary Power Unit Power
Auxiliary Power Unit Power
The Boeing Company

Mfr Part#
AJP9001-503

Auxiliary Power Unit
Auxiliary Power Unit

Mfr Part#
AJP9001-502

Auxiliary Power Unit Power Cable
Auxiliary Power Unit Power Cable

Mfr Part#
AJP9501-503

Auxiliary Power Unit Power Cable
Auxiliary Power Unit Power Cable

Mfr Part#
AJP9501-501

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.

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