Address:
1000 Davey Road
Suite 800
Woodridge, Illinois 60517

Phone:
1-800-365-0088

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

Other Customers:
PSC@Navistar.com

Hours of operation and Live phone support:
Monday-Friday 7:30AM - 4:30PM CST