Aftertreatment repair costs
DPF, DOC, SCR, DEF dosing. The most expensive system on a modern truck to get wrong, and the one with the most bad advice written about it.
2 priced repairs
Full range across every scenario on each page, cheapest first. All figures are provisional until our receipt dataset has a sample.
| Repair | Applies to | Typical range |
|---|---|---|
| DPF Cleaning Costin review | Class 8 tractor, Class 6–7 medium duty, Class 3–5, Diesel pickup | $200–$2,250 |
| DEF Pump Replacement Costin review | Class 8 tractor, Class 6–7 medium duty, Class 3–5, Diesel pickup | $688–$5,180 |
Fault codes that lead into these repairs
- SPN 3364 FMI 2DEF Quality / Concentration — Data Erratic or IncorrectDerate risk
- SPN 5246 FMI 0SCR Operator Inducement — Most Severe Level ActiveOut of service
- SPN 4364 FMI 18SCR Conversion Efficiency — Below Normal, Moderately SevereDerate risk
- P20EESCR NOx Catalyst Efficiency Below Threshold — Bank 1Derate risk
- SPN 3251 FMI 0DPF Differential Pressure — Above Normal, Most SevereDerate risk
- SPN 3719 FMI 0DPF Soot Load — Above Normal, Most SevereDerate risk
- SPN 1569 FMI 31Engine Protection Torque Derate — Condition ExistsDerate risk
Shops that handle this work
We call every shop before it appears here, and publish the date.
Sample records only — seeded to demonstrate the directory. None of these numbers has been called.
Memphis, TN · 24/7 · mobile service
Indianapolis, IN · Mon-Fri 6am-6pm · mobile service
Laredo, TX · Mon-Sat 6am-9pm · mobile service
Phoenix, AZ · 24/7 · mobile service