Clean Emission Catalyst: Paccar MX13 DOC (2014–2017)
What is it?
The Paccar MX13 DOC (Diesel Oxidation Catalyst) for model years 2014–2017 helps convert carbon monoxide (CO) and unburned hydrocarbons (HC) in the exhaust into less harmful substances before they enter downstream emissions systems.
Why choose this DOC?
This DOC is engineered specifically for MX13 engines from 2014 to 2017, ensuring proper oxidation performance while preserving exhaust flow. Using a correct, high-quality DOC helps protect other aftertreatment parts, reduce system stress, and avoid diagnostic faults associated with poor matches.
Key Benefits
✅ Suitable for Paccar MX13 engines (2014–2017)
✅ Transforms CO and hydrocarbons into safer exhaust gases
✅ Prepares exhaust for downstream filters or catalysts
✅ Built to withstand intense heat and prolonged use
✅ Direct-fit design simplifies installation
Applications
This DOC is ideal for heavy trucks, commercial vehicles, and industrial equipment powered by MX13 engines between 2014 and 2017. It functions as the initial catalytic stage in the vehicle’s emissions path.
Installation Notes
Ensure the engine and exhaust system are fully cooled before installing. Remove the existing DOC and inspect connected pipes, sensors, and seals for wear or damage. Install the new unit with fresh gaskets, torque hardware to Paccar specifications, and confirm proper sealing. After installation, monitor diagnostics or run a regeneration cycle to verify correct operation.
Final Thoughts
For your MX13 engine, this DOC offers the right balance of chemical conversion, durability, and fit—helping maintain emissions compliance and supporting the overall efficiency of your emission control system.