Cummins X15 DOC Filter 2022-2024: OEM 5509711

Dependable Exhaust Treatment for Cummins X15 Engines (2022–2024)

What is it?
The Diesel Oxidation Catalyst (DOC) filter for the Cummins X15 engine (model years 2022–2024), OEM reference 5509711, is a key emissions-control component. It converts hydrocarbons (HC) and carbon monoxide (CO) in the exhaust stream into cleaner, less harmful gases, helping the aftertreatment system maintain reliable, steady operation.

Why choose this DOC Filter?
Engineered to meet original equipment specifications for the 2022–2024 X15 platform, this DOC filter is designed for precise fitment and dependable integration with the exhaust and aftertreatment system. A worn, clogged, or improperly matched filter can lead to elevated exhaust restriction, regeneration interruptions, or emissions-related fault codes. Installing the correct DOC filter helps support consistent exhaust flow and smooth aftertreatment performance.

Key Benefits
✅ Converts HC and CO into cleaner exhaust output
✅ Supports proper function of downstream aftertreatment components
✅ Helps maintain steady exhaust flow and reduce restriction
✅ Direct-fit design — no modifications required
✅ Built for heavy-duty, high-temperature operating environments

Applications
Ideal for heavy-duty trucks and commercial vehicles powered by Cummins X15 engines from model years 2022 through 2024, particularly where emissions compliance and dependable exhaust system behaviour are essential.

Installation Notes
Before servicing, be sure the exhaust and aftertreatment system has cooled completely. Remove the existing DOC filter and inspect nearby exhaust piping, sensors, and hardware for soot buildup, cracks, or wear. Install the replacement using new clamps, gaskets, and seals. After installation, clear any stored emissions-system fault codes and verify proper exhaust and aftertreatment behaviour via diagnostic checks.

Final Thoughts
If your X15-equipped vehicle is experiencing elevated exhaust restriction, frequent regenerations, or emissions-related alerts, replacing the DOC filter with the correct OEM-specified unit is a practical way to restore clean, dependable exhaust flow. This component plays a crucial role in preserving the integrity of your emissions-control system and supporting consistent performance.