Cummins DPF Delete Tuning

Diesel Spec provides Cummins DPF delete tuning for eligible medium- and heavy-duty off-highway applications. Our team supports a wide range of Cummins diesel engines, depending on the model year and application.

With more than 50,000 engine tunings and delete services completed, Diesel Spec has extensive experience with commercial diesel engines. Review the model list below to see the tuning and delete services available for your Cummins engine.

Don’t see your Cummins engine in the list? Additional models may be eligible for ECM tuning or selected EGR, DPF, UREA and VGT services. Contact our team to confirm compatibility and the options available for your engine.

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How does the DPF work on a Cummins diesel engine?

The diesel particulate filter, or DPF, captures soot and contaminants from the engine’s exhaust gases before they are released into the environment. To clean the filter, the engine starts a process called regeneration, which raises the exhaust temperature and burns the accumulated soot.

Regeneration may occur approximately every 300 miles and generally requires the vehicle to maintain a speed above 45 miles per hour. A regeneration cycle can take between 15 and 30 minutes.

Vehicles that operate mainly in stop-and-go conditions may have difficulty maintaining the speed required to complete the cycle. Incomplete or recurring regeneration cycles can contribute to DPF problems and disrupt normal engine operation.

What are the potential benefits of a Cummins DPF delete?

For eligible off-highway applications, a Cummins DPF delete may reduce interruptions associated with regeneration and support more consistent engine operation. Results vary depending on the engine model, its condition, the calibration and the operating environment.

• Fewer regeneration-related interruptions: The engine no longer needs to complete the regeneration cycles required to clean the filter. This may reduce interruptions caused by incomplete or recurring cycles.
• Reduced fuel use during regeneration: Active regeneration uses fuel to increase the exhaust temperature. Eliminating this process may reduce the fuel consumed during these cycles.
• More consistent engine response: A restricted or malfunctioning DPF can affect exhaust flow. An appropriate calibration may contribute to more consistent throttle and engine response.

Contact Diesel Spec to confirm whether your Cummins engine is compatible and to learn more about the off-highway tuning options available for your application.

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Disclaimer for off-highway tuning

DPF delete tuning is an off-highway tuning service intended solely for closed-course competition and off-highway use. It may not be legal for street use in your province or state and cannot be performed on vehicles registered or certified for highway operation. Review all applicable federal, provincial, state and local laws before purchasing.