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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Firewall Assembly - Auxiliary Power Unit, Lower, Station 1832.00, S
Firewall Assembly - Auxiliary Power Unit, Lower, Station 1832.00, S

Mfr Part#
148T8402-82

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket

Mfr Part#
148T8690-3#A

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691-22

Auxiliary Power Unit Dripshield
Auxiliary Power Unit Dripshield
The Boeing Company

Mfr Part#
148T8691-23

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691-17

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket

Mfr Part#
148T8690-3#B

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691-18

Auxiliary Power Unit Dripshield
Auxiliary Power Unit Dripshield
The Boeing Company

Mfr Part#
148T8691-19

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691-21

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691U7

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691U8

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket

Mfr Part#
148T8690-9#A

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691U15

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691U12

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691U11

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691U16

Auxiliary Power Unit Dripshield Bracket
Auxiliary Power Unit Dripshield Bracket
The Boeing Company

Mfr Part#
148T8691U22

Retainer-Auxiliary Power Unit Auxiliary Door, Aft/Inboard, Left Hand
Retainer-Auxiliary Power Unit Auxiliary Door, Aft/Inboard, Left Hand

Mfr Part#
148T6566-39

Seal Installation - Auxiliary Power Unit Auxiliary Dynamic Object-Oriented Requirements System, Left Hand
Seal Installation - Auxiliary Power Unit Auxiliary Dynamic Object-Oriented Requirements System, Left Hand
Retainer - Auxiliary Power Unit Auxiliary Door, Forward/Inboard, Left Hand
Retainer - Auxiliary Power Unit Auxiliary Door, Forward/Inboard, Left Hand

Mfr Part#
148T6566-27

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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