Ram Cummins Specialists · Tucson, AZ

Cummins

We service Dodge & Ram diesel trucks from 2003 to current, including the 5.9L common rail and 6.7L Cummins platforms. Known for strong torque, towing capability, and long-term durability, these trucks perform best when maintained properly and diagnosed with the right tools, software, and experience.

Every Cummins Generation

We Know These Engines Inside And Out

5.9L Common Rail (2003 – 2007)

We service the 2003–2007 Dodge/Ram 5.9L Cummins, common rail diesel engine known for its durability, strong torque, and long-lasting reliability when properly maintained.

6.7L & 6.7L HO (2007.5 – Current)

We service the 2007.5–2018 Dodge/Ram 6.7L Cummins, a powerful and capable diesel engine known for strong towing performance, improved emissions technology, and long-lasting reliability when properly maintained.

Common Cummins Services

What We Do Best On Cummins

Turbo Replacements

When a turbo begins to fail, replacing the actuator may only buy time—the turbo itself has often already suffered internal damage and should be properly inspected before deciding on repairs.

Injector Replacement

Bosch injectors are often the preferred choice because they are engineered to meet strict factory standards for fuel delivery, spray pattern, performance, and reliability—helping protect your diesel engine from poor running, excessive smoke, fuel system damage, and premature failure.

Grid Heater Upgrade

A grid heater upgrade can help reduce the risk of factory grid heater failure, which can lead to serious engine damage if loose hardware or electrical issues are left unaddressed.

Cummins Diagnostics

Our diagnostic approach is built on specialized tools, advanced software, proven testing procedures, and real-world experience—helping us identify the root cause accurately instead of guessing or simply replacing parts.

Cummins Warning Signs

Symptoms Your Cummins Should Not Be Showing

Cummins engines are durable, but they tell you when something is wrong. Here is what we see most often:

Frequently Asked Questions

Questions, Answered

Unfortunately, no. 

Short trips, low duty cycle, and clogged or failing DPF / EGR components are the usual causes. We diagnose the root cause and address it instead of just clearing codes and/or performing a manual regen cycle.  A manual regen is rarely the solution. While it may treat the symptoms temporarily, it does not usually address the actual cause. 

Ready to get your truck back on the road?

Call us today!