Contact Your Local Factory Cummins Office   Cummins supports you with factory trained, factory employees located in over 50 North American cities. You can contact your local Cummins representative by using either the zip code lookup tool to get location information and phone number(s) of the main branch office for your area, or request product information or assistance from your nearest representative via the email form. For office location and contact phone number(s) of your nearest Cummins branch office, enter your 5-digit zip code: Email your nearest Cummins sales and/or service personnel.