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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Isolator (Machinged Housing)
Isolator (Machinged Housing)
Hutchinson Aerospace Industry

Mfr Part#
96227-06

Isolator, Vibration, Auxiliary Power Unit, Aft
Isolator, Vibration, Auxiliary Power Unit, Aft
Hutchinson Aerospace Industry

Mfr Part#
95791-06

Isolator, Vibration, Auxiliary Power Unit, Right Hand
Isolator, Vibration, Auxiliary Power Unit, Right Hand
Hutchinson Aerospace Industry

Mfr Part#
95791-04

Isolator (Machined Housing), Auxiliary Power Unit, Forward, L
Isolator (Machined Housing), Auxiliary Power Unit, Forward, L
Hutchinson Aerospace Industry

Mfr Part#
96227-04

Isolator, Auxiliary Power Unit, Aft, 747
Isolator, Auxiliary Power Unit, Aft, 747
Hutchinson Aerospace Industry

Mfr Part#
96227-03

PSU Assembly Set (AAL)
PSU Assembly Set (AAL)
The Boeing Company

Mfr Part#
849A6029-1

Unit Assembly
Unit Assembly
Rosemount Aerospace Inc

Mfr Part#
8730B1-1

Top Kit - Auxiliary Power Unit Surge Bleed Valve Control Rev
Top Kit - Auxiliary Power Unit Surge Bleed Valve Control Rev
The Boeing Company

Mfr Part#
880A0067-10

Top Kit - Auxiliary Battery Installation
Top Kit - Auxiliary Battery Installation
The Boeing Company

Mfr Part#
880A0057-4

Top Kit - Auxiliary Electrical And Elect
Top Kit - Auxiliary Electrical And Elect

Mfr Part#
880A0131-1

Top Kit - Auxiliary Power Unit Surge Bleed Valve Control Rev
Top Kit - Auxiliary Power Unit Surge Bleed Valve Control Rev
The Boeing Company

Mfr Part#
880A0067-2

Top Kit - Auxiliary Power Unit Fire Detection Wiring
Top Kit - Auxiliary Power Unit Fire Detection Wiring

Mfr Part#
880A0067-9

Top Kit - Auxiliary Battery Installation
Top Kit - Auxiliary Battery Installation
The Boeing Company

Mfr Part#
880A0057-9

Top Kit-Aid With WWU Function For AIRC
Top Kit-Aid With WWU Function For AIRC
The Boeing Company

Mfr Part#
880A0146-37

Auxiliary Power Unit Dual Detector, Upper
Auxiliary Power Unit Dual Detector, Upper
Meggitt Safety Systems

Mfr Part#
900482

Interface Unit
Interface Unit

Mfr Part#
910030-5026

Interface Unit
Interface Unit

Mfr Part#
910030-5170

Forward Frame Clip 4, Frame-Par Auxiliary Power Unit Inlet
Forward Frame Clip 4, Frame-Par Auxiliary Power Unit Inlet
The Boeing Company

Mfr Part#
9153535425-4

Side Plate (RHS) - Auxiliary Power Unit Inlet Door
Side Plate (RHS) - Auxiliary Power Unit Inlet Door

Mfr Part#
9153533200-8

Attach Angle, Inboard (RHS) - Par Auxiliary Power Unit In
Attach Angle, Inboard (RHS) - Par Auxiliary Power Unit In

Mfr Part#
9153535200-8

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.