Whether you have questions about a specific product, need a filter sent to you immediately, or are just curious about aircraft filtration, you’ve come to the right place. Browse the sections below for answers. If you need more help, don’t hesitate to call us.

Commercial and Military Aerospace
Customer Service Contact Information
Phone: 1-952-887-3435 or 1-866-323-0394
Fax: 1-952-887-3221

aerospace@donaldson.com

Aircraft on Ground (AOG) / Emergency Spares
If you have an aircraft grounded by parts required, an imminent AOG or shop work stoppage, or otherwise need your parts expedited, please call customer support for priority service.

Main Contact
Monday – Friday, 7:30 am to 4:30 pm CST (USA)
Phone: +1-952-887-3435

After Hours Contact
Dan Blackburn
Phone: +1-815-288-2016

Land and Sea Defense Vehicles
Customer Service Contact Information
Phone: 1-952-887-3435 or 1-866-323-0394
Fax: 1-952-887-3221

defense@donaldson.com