2600 E 2nd Street
Gillette, WY 82718

From I-90, take exit 129, turn South onto Garner Lake Road, turn West onto 2nd St. Cummins Rocky Mountain is at the end of the street.

Phone Number:
Toll Free: (800) 773-9611

Hours of Operation:

Parts Hours:
Monday - Friday: 7:30 am - 5:30 pm
Service Hours:
24 hours a day, 7 days a week