Cummins Sales and Service located in Billings provides expert service and repair by factory trained technicians on all Heavy, Medium and Light Duty Diesel and Natural Gas engines and powertrains, as well as field and shop service of Cummins Onan Power Generation equipment. Cummins also maintains a large inventory of Cummins Genuine parts and allied products. Call us in Billings, MT at (406) 245-4194 or call toll free 1-800 Cummins