Freightliner in Denver, CO and Kalispell, MT

We provide expert Freightliner truck repair for commercial fleets and owner-operators. From engine diagnostics to mobile repair, we keep your Cascadia, M2, and other models running strong.

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Colorado

Montana

Freightliner Repair & Maintenance in Denver, CO, and Kalispell, MT

Freightliner trucks are built to deliver—but even the most reliable rigs need maintenance. Iron Buffalo offers specialized Freightliner truck repair in Denver, CO and Kalispell, MT, covering everything from scheduled maintenance to major component diagnostics.

Our certified diesel technicians understand Freightliner’s design and systems inside and out. Whether it’s a Detroit Diesel engine issue, a faulty aftertreatment system, or an electrical fault in your M2 chassis, we identify the problem fast and deliver dependable repairs.

Complete Freightliner Truck Services

We provide professional-grade service for Freightliner’s full lineup of heavy-duty and medium-duty trucks. Our services include:

Freightliner engine diagnostics and repair
Detroit Diesel and Cummins engine support
Freightliner ECM and electrical troubleshooting
Cascadia HVAC, brakes, and emissions service
Transmission and clutch diagnostics
M2 chassis suspension and steering repair
Aftertreatment and DPF system service
PTO and hydraulic system service
Preventive maintenance and DOT inspection prep

We work with fleet managers and owner-operators alike, using OEM-grade parts and Freightliner-specific diagnostic tools.

Benefits of Freightliner Trucks

Freightliner trucks are known for fuel efficiency, driver comfort, and a wide range of applications—from long-haul to regional to vocational work. With models like the Cascadia and M2, Freightliner blends powerful diesel performance with advanced technology and aerodynamic design. Their modular engineering simplifies repair access and reduces service time, while onboard diagnostics systems help flag issues early.

Need Freightliner Repair Service?

Looking for expert Freightliner repairs? Call Iron Buffalo at 303-623-7049 (Denver) or 406-890-7001 (Kalispell). We’ll keep your truck running at full performance—on your schedule.

FAQs

What Areas Do You Serve?

We offer 24/7 mobile repairs and roadside assistance in the following areas:

Colorado: Boulder, CO; Aurora, CO; Centennial, CO; Fort Collins, CO; Greeley, CO; Georgetown, CO; Brighton, CO; Castle Rock, CO; Colorado Springs, CO; and Longmont, CO.

Montana: Whitefish, MT; Bigfork, MT; Somers, MT; Polebridge, MT; Thompson Falls, MT; Polson, MT; Rollins, MT; Libby, MT; and Eureka, MT.

What Freightliner Models Do You Repair?

We service the full Freightliner lineup including Cascadia, M2 106, M2 112, 122SD, 114SD, and Columbia models across all configurations.

Do You Offer Mobile Freightliner Repairs?

Yes. We bring Freightliner diagnostics and repair services directly to your location—24/7—in both Colorado and Montana.

How Can I Get in Touch?

If you're ready to schedule diesel repairs, call Iron Buffalo today at 303-623-7049 (Denver) or 406-890-7001 (Kalispell).

Manufacturers

Customer testimonials

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"I highly recommend this shop. I had luke a technician there do some work on my truck after a ford dealership took 6 days and failed to acknowledge my warranty on 3 leaking oil spots on my truck.Once the dealership screwed me over I took my truck here. Luke was very impressive, fast and communicative. He provided me photos. He kept me updated on everything he did. I still have a warranty through ford but apparently it’s useless. I don’t think I’ll ever go back to them considering how they treated me. Luke is a solid technician who is very skilled. I can’t recommend him enough. Thank you."

Tristen

"Our truck broke down just as we were getting into Denver. It was a major repair and they accomplished it quickly and we were back in our truck. Everyone there was very professional and nice to work with. The unhappy news of a major repair was actually a good experience. Definitely recommend Iron Buffalo."

Kelly

"I’m glad I went to this shop. I was so worried it would be another back door mechanic wanting to swindle me. It was anything but. Shannon was super kind and went way out of his way getting me in right away. And Steve was a professional from start to finish in assisting with the work being done. I’m really appreciative and would 100% use this shop again."

Kristin

"Steven Riddle is the best service writer if ever dealt with. He is very knowledgeable, I called with starting issues. With in 1hour try had my truck towed in. That day they had it diagnosed then next day they found the parts. Great job, I will be using in the future. Thanks a lot."

Mike

"Kanisha was great, I had been trying to get my small hydraulic cylinder repaired for quite some time and she was the first person that said "YES" she was honest about needing to look first. She was willing to listen and explained the process. When I came in she was polite and professional. She communicated like she said she would and got it taken car of! I'll recommend Kanisha and Iron Buffalo!"

Lance

"I'm very happy with the service I received from Iron Buffalo Holdings I highly recommend this shop. I got an Inspection & a DYNO done on my Semi Truck. Canesha was prompt and courteous."

Miko

"Had a break down with the ol’ Pete they picked up and were available l. They aren’t the cheapest but heck you get what you pay for. If you want your rig or RV fixed so you can head one down the road these guys are nice and they can almost always get done in a day if you need it."

Bryan

Light, Medium & Heavy-Duty Truck Repair Services in Denver, CO & Kalispell, MT

Trusted Diesel Repair & Fleet Services - Keeping You on the Road & Job Site

Commerce City, CO

5590 E 55th St, Commerce, City, CO

303-623-7049

Kalispel, MT

104 Rocky Cliff Lane, Unit 1, Kalispell, MT

406-890-7001