Your Local Cummins-Approved Cleaning Center
Diesel DPF Cleaning is a Cummins-approved cleaning center and a Clean Diesel Specialists (CDS) licensee serving South Bend and surrounding communities. We offer DPF and DOC cleaning, along with EGR cooler cleaning, to help you maintain your diesel aftertreatment components.
Understanding the CDS DPF Cleaning Process

DPF cleaning equipment in use. Photo: Clean Diesel Specialists.
Cleaning a diesel particulate filter is different from an on-vehicle regeneration. Regeneration helps burn off soot, but ash remains and requires off-vehicle cleaning. Clean Diesel Specialists describes an eight-step DPF cleaning process:
- Initial inspection: Examine the filter for external damage, contamination, and wear.
- Record and document: Record initial airflow, weight, and condition to establish a baseline.
- Blast cleaning: Use compressed air to dislodge larger soot and ash particles.
- Aqueous cleaning: Use water cleaning to remove embedded particles that air cleaning alone may miss.
- Drying: Remove residual moisture before further processing.
- Thermal treatment: Apply controlled heat to address remaining fine particulates.
- Cooling and final checks: Perform final airflow testing and a structural check after cooling.
- Packaging and documentation: Seal and label the cleaned filter for transport with documentation of the cleaning results.
Contact us to discuss your component's condition and the cleaning service appropriate for it. This DPF process overview does not describe our EGR cooler cleaning procedure.
Diesel Particulate Filter Cleaning
DPF cleaning is a core part of our diesel aftertreatment business. If you’re looking for cleaning services for your diesel particulate filter, contact us to discuss your filter and service needs.
DPF cleaning: $300. Turnaround: 24 hours.
DOC Cleaning
We offer diesel oxidation catalyst (DOC) cleaning for $80. Contact us to discuss your DOC cleaning needs.
EGR Cooler Cleaning
We also offer exhaust gas recirculation (EGR) cooler cleaning for $300. Turnaround: 48 hours.
Call 219-809-3804 or email dieseldpfcleaning@gmail.com to discuss your EGR cooler cleaning needs.
Drop-Off, Ship-In, Pickup & Delivery
We accept filters dropped off at our South Bend shop or shipped in for cleaning. We also offer free pickup and delivery for DPF cleaning within a 90-mile radius of our shop.
Call 219-809-3804 or email dieseldpfcleaning@gmail.com to arrange pickup and delivery or discuss sending in your filter.
Contact Us for DPF, DOC & EGR Cooler Cleaning
Call 219-809-3804 or email dieseldpfcleaning@gmail.com to discuss your cleaning needs.
Hours: Monday–Friday, 10 a.m.–5 p.m. Eastern Time.
Shop address:
215 Ullery St, Unit 2
South Bend, IN 46637
Discuss Your Cleaning Needs
When making an inquiry, include your vehicle or equipment make and model, the component part number if available, and any symptoms or fault codes. These details provide a starting point for discussing your needs.
Aftermarket Diesel Aftertreatment Parts
We also sell aftermarket diesel particulate filters, sensors, diesel oxidation catalysts (DOCs), and related diesel aftertreatment items.