HEATER (P/N 4-66) - New Surplus

The 4-66 is an aircraft heater component within the environmental control system that supplies heated air for cabin climate management. This unit integrates into cabin heating circuits to maintain passenger and crew comfort during flight operations. Installation follows the aircraft maintenance manual and FAA AC 43.13-1B guidance, with configuration and capacity varying by aircraft model and Illustrated Parts Catalog specifications.

Verify compatibility with your specific aircraft before replacement to ensure proper system integration and airworthiness compliance.

What is the HEATER (P/N 4-66)?

The 4-66 is an aircraft heater component within the environmental control system that supplies heated air for cabin climate management. This unit integrates into cabin heating circuits to maintain passenger and crew comfort during flight operations.

What conditions is the 4-66 available in?

The 4-66 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the 4-66?

The 4-66 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the 4-66?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.