The 131 family of auxiliary power units (APUs) is one of the most successful of all time, with more than 100 million hours of in-service use.

The 331 Series Auxiliary Power Units provides high levels of reliability with economical maintenance and has the highest power-to-weight ratio in its class.

The 36 Series Auxiliary Power Units (APUs) family deliver improved performance, increased reliability and a lower total cost of ownership. Read more

HGT1700 APU incorporates industry-leading technological advancements to reduce weight, maximize performance and provide safe, efficient & low-cost operations.

The HGT400 APU offers an integrated system that supplies pneumatic and electric power for the aircraft while on the ground or in-flight. Read more.

A follow-on to the most popular auxiliary power unit (APU) of all time, the 131-9 APU, the HGT750 delivers world-class fuel efficiency and lower emissions.

We have a rich heritage providing power for military aircraft. Honeywell has designed and tailored many military application auxiliary power units.

More compact and significantly lighter than its nearest competitor, the RE100 APU is a perfect fit for small to mid-size aircraft.

The RE220 provides a reliable, cost-effective source of pressurized bleed air for environmental control systems (ECS) and emergency electrical power.

Honeywell’s ignition exciter upgrade solution (PN 70721353-1) eliminates the use of radioactive material in the spark gap component