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Restore your truck’s performance with our professional DPF Maintenance Service, designed specifically for Freightliner trucks equipped with Detroit GHG21 engines (model year 2022 and newer).
This preventative maintenance service helps reduce downtime, improve fuel efficiency, and extend the life of your DPF (Diesel Particulate Filter)—keeping your truck operating efficiently and out of costly derates.
Freightliner trucks
Detroit engines (GHG21 platform)
Model year 2022 and newer
Connect OEM-level diagnostic software
Generate pre-service diagnostic report
Remove steps/fairings as needed
Remove DPF filter from housing
Professional DPF testing
Full DPF cleaning service
Install DPF with new clamps and gaskets
Clear fault codes
Reset DPF ash accumulator
Perform forced DPF regeneration
Inspect for exhaust leaks
Reinstall steps/fairings
Pre-service diagnostic report
Post-service diagnostic report
DPF cleaning record
Restore proper airflow and regeneration performance
Reduce frequent regens and downtime
Improve fuel efficiency and engine performance
Prevent premature DPF failure
Maintain EPA & CARB emissions compliance
⏱ Estimated: 2 Business Days
This is a preventative maintenance service only (not advanced diagnostics or repair)
If pre-existing faults or system issues are identified, additional repairs may be required (performed separately)
If the DPF is damaged or severely restricted:
👉 Cleaning cost will be credited toward replacement (new or reman DPF will be quoted)
💡 While this is not a full diagnostic service, our team will provide experience-based insights and recommendations when applicable.
Explore our educational content to better understand your truck and aftertreatment system:
👉 https://dpfdiscounter.com/pages/how-to-videos
👉 https://dpfdiscounter.com/pages/warranty-policy
Specialists in diesel aftertreatment systems (DPF, DOC, SCR)
Extensive experience with Detroit Diesel GHG21 emissions systems
Transparent process with before & after documentation
Focused on uptime, reliability, and long-term performance
Stay ahead of costly repairs and keep your truck running efficiently with our professional DPF maintenance and cleaning service.