Address:
1000 Davey Road
Suite 800
Woodridge, Illinois 60517

International® and IC Bus® Dealer Personnel:
Please open a Tools iKNow Case File.

Other Customers:
1-800-365-0088 option 1 to leave a voice message
Or email PSC@Navistar.com

Hours of operation:
Voicemail, Email and Case File - 7:30 AM - 4:00 PM CST Monday-Friday