Cummins Repair in the Denver Area — Branch Automotive Littleton, CO
When you need a Cummins diesel repair specialist, Branch Automotive in Littleton, CO is where you need to go. We provide repair services for Cummins, Dodge, RAM, and diesel-powered vehicles with 5.9-liter or 6.7-liter engines.
Our diesel technicians are all ASE Certified and trained in using diagnostic tools for the Cummins engine. You can reach us by calling (303) 771-2224. We are located at 6030 East County Line Road, Littleton, CO 80126-3919.
HIGH QUALITY
PARTS & WORK
24 MO/24K MI
WARRANTY
DIAGNOSTIC
INSPECTIONS
TRUSTWORTHY
& FRIENDLY SERVICE
Cummins Repair in the Denver Area — Why Branch Automotive
Branch Automotive is the Denver area’s trusted specialist for Cummins diesel repair. Located in Littleton, CO, our shop is conveniently accessible from throughout the south Denver metro — including Highlands Ranch, Centennial, Parker, Aurora, and Lone Tree. Customers come to us from across the Denver area because we offer something most general repair shops cannot: dedicated expertise in Cummins diesel engines.
Our team includes ASE Master Technicians with factory-level training on Cummins diesel systems. Whether your truck needs Cummins repair for a failed DEF system, a DPF issue, turbocharger problems, or a comprehensive engine diagnostic, we have the tools, training, and experience to diagnose and repair it correctly the first time. We are not a dealership, and we are not a general auto shop. We are a diesel-first service center that specializes in the heavy-duty Cummins engine systems that power RAM, Dodge, and other diesel trucks throughout the Denver area.
Cummins Engines We Service in the Denver Area
Branch Automotive services Dodge 2500, Dodge 3500, Dodge 4500, Dodge 5500, RAM 1500 Eco Diesel, RAM 2500, RAM 3500, and RAM 4500 series diesel pickup trucks.
Some of the common issues we have found when working on Cummins engines include:
- The “Perform Service” message displays when you first start the truck. This message warns you when it’s time for emissions service, including replacing the closed crankcase ventilation filter and cleaning or replacing the EGR cooler and/or EGR valve.
- The check engine light comes on. This happens when the computer detects an anomaly and cannot correct it. The check engine light usually lights up for many issues (including other issues on this list.)
- Turbocharger issues (including the turbo actuator)
- NOX sensors
- Diesel exhaust fluid (DEF) sensors and heaters
- Diesel particulate filter (DPF) issues
- Fuel pressure sensor issues
- Electronic throttle control (ETC) issues
- Intake air heater problems
- Service emissions system message
- Fuel injection system failure
- Fuel system contamination
- Overheating
- Engine cooling system performance issues
Free Wifi
Clean bathrooms
Clean waiting room and office
A coffee bar with coffee, tea, and other beverages
Truck Repair and Fleet Services for Cummins Diesel Owners
Branch Automotive provides truck repair and fleet services for businesses and fleet operators throughout the Denver metro area. If your company runs RAM 2500s, 3500s, or other Cummins-powered trucks, keeping them road-ready is critical to your operations. Unplanned downtime costs money, and a specialist shop that understands your heavy-duty trucks is the best way to prevent it.
Our fleet services include priority scheduling, thorough multi-point inspections, and service records for every vehicle. We perform Cummins repair work on commercial and work trucks of all configurations, including RAM 1500 Eco Diesel, RAM 2500, RAM 3500, and RAM 4500 models. For fleet managers in the Denver area, we offer service center support that goes beyond a standard appointment — we learn your vehicles and stay ahead of developing problems before they become costly breakdowns.
Whether you have one diesel truck or a fleet of ten, Branch Automotive is the diesel service center Denver area fleet operators trust. Call (303) 771-2224 to discuss a fleet maintenance plan.
Heavy-Duty Cummins Engine Repair Services
Not a comprehensive list of everything we can repair, but it covers the most common issues we deal with:
- Engine repair and replacement. Diesel engines can get hundreds of thousands of miles on them if the owner maintains them properly. If not, you might be staring in the face of an engine replacement sooner.
- Transmission repair and replacement. As with engines, transmissions need preventative maintenance to put off costly repairs or replacements. When you flush the transmission fluid and change the filter as recommended by the manufacturer, the transmission can last longer.
- Oil leaks
- Head gaskets
- EGR systems
- DEF systems DPF repairs
- Steering and suspension issues
- Coolant leaks
- Axle shafts
- Differentials
- Fuel system issues, including the injection pump
- Air conditioning issues
- Power steering fluid leaks
- Hydro booster issues
- Cooler issues. We recommend performing a Stack Clean when the coolers become visibly dirty to keep the coolers free from debris, which allows the engine to run cooler. You’ll notice an increase in cooling system performance, especially if you haven’t cleaned any of the coolers in front of the engine in years.
Truck Repair and Fleet Services for Cummins Diesel Owners
When you need preventative maintenance and diesel repair services, contact us for an appointment or direct the tow truck to drop your vehicle off at our shop.
You can call us at (303) 771-2224 or visit us at 6030 East County Line Road, Littleton, CO 80126-3919.
• TRUSTWORTHY & FRIENDLY SERVICE
• 24 MONTH / 24,000 MILE WARRANTY
• DIAGNOSTIC INSPECTIONS
• DIESEL EMISSIONS TESTING
Advanced Diagnostics and Cummins Engine Repair Capabilities
One of the most common challenges Cummins diesel owners face is finding a shop with the right diagnostic equipment to pinpoint the actual cause of the problem — rather than guessing and replacing parts. Branch Automotive uses factory-level scan tools specific to Cummins diesel engines, along with a chassis dynamometer for post-repair testing.
Our capabilities include complete diagnostics engine evaluation, DEF and DPF system repairs, EGR cleaning and replacement, turbocharger rebuild and replacement, fuel injector testing and replacement, and full engine repair and replacement for Cummins 5.9L and 6.7L engines. We also perform generator diagnostics and equipment repair for industrial diesel engines when our schedule allows.
The result is a good outcome for your truck: a repair based on evidence, not guesswork. We also offer digital vehicle inspections — we send you photos of exactly what we found, what we recommend, and what it will cost. No surprises. For Cummins repair in the Denver area, the right diagnostic approach makes all the difference. Call (303) 771-2224 or book online today.