Professional Detroit One Box Cleaning Service (DPF, DOC & SCR Cleaning for Detroit Engines)
Restore complete aftertreatment performance with our Professional Detroit One Box Cleaning Service. At DPF Discounter, we provide a comprehensive cleaning solution for Detroit Diesel One Box systems, servicing DPF, DOC, and SCR components together to ensure maximum efficiency, reliability, and emissions compliance.
What is the Detroit One Box System?
Detroit Diesel engines (GHG10, GHG14, GHG17) use an integrated “One Box” aftertreatment system that combines:
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DOC (Diesel Oxidation Catalyst)
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DPF (Diesel Particulate Filter)
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SCR (Selective Catalytic Reduction)
All in a single housing unit.
👉 Because these components work together as one system, cleaning only one part is not enough—a complete cleaning ensures proper airflow, regeneration, and emissions control.
Why One Box Cleaning is Important
Over time, the One Box system can become restricted due to:
If not properly maintained, this can lead to:
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Frequent or failed DPF regenerations
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NOx sensor and DEF system faults
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Engine derates and downtime
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Reduced fuel efficiency and performance
👉 A full One Box cleaning restores the entire aftertreatment system—not just part of it.
What’s Included in Our One Box Cleaning Service
✔ Professional cleaning of DOC, DPF, and SCR components
✔ Removal of ash, soot, and DEF contamination
✔ Advanced thermal and pneumatic cleaning process
✔ Pre- and post-cleaning flow and restriction testing
✔ Inspection for cracks, melting, or catalyst failure
✔ Optional diagnostic support for emissions-related faults
Customer Preparation Requirements (Important)
To perform this service, the customer is responsible for preparing the One Box prior to arrival:
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The One Box must be removed from the truck
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All sensors, wiring harnesses, and related components must be removed
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The DPF filters must be removed from the One Box housing
👉 This service is designed for loose components only.
Additional Labor Disclaimer:
If disassembly is required—including removal of DPFs, sensors, wiring harnesses, or sensor bungs—this will be considered additional service, and labor will be quoted or charged separately.
Benefits of Detroit One Box Cleaning
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Restore proper regen and NOx reduction performance
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Reduce fault codes, derates, and downtime
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Improve fuel efficiency and engine performance
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Prevent repeat DPF, DOC, and SCR issues
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Extend the life of your entire aftertreatment system
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Maintain EPA & CARB emissions compliance
Who This Service is For
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Freightliner and Detroit-powered trucks with One Box systems
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Vehicles experiencing frequent regens or DEF faults
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Trucks in derate due to emissions issues
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Fleets performing preventative maintenance on aftertreatment systems
Why Choose DPF Discounter
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Experts in Detroit Diesel aftertreatment systems
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Specialized equipment for One Box cleaning and testing
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Accurate diagnostics to prevent repeat failures
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Located in Canton, Ohio, serving fleets nationwide
Important Notes
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Walk-ins are welcome, however, appointments are highly encouraged to minimize wait time
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This service is performed at our facility in Canton, Ohio
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Fully assembled units may be subject to additional labor charges
Book Your Detroit One Box Cleaning Service Today
Get your entire emissions system restored—not just part of it—with our professional Detroit One Box cleaning service.
