Pure Efficiency for Heavy-Duty Power: Paccar MX13 DOC (2011–2013)
What is it?
The Paccar MX13 Diesel Oxidation Catalyst (DOC) for 2011–2013 engines is a critical emissions system component designed to convert harmful gases—like carbon monoxide (CO) and unburned hydrocarbons (HC)—into cleaner, safer exhaust before they move downstream.
Why choose this DOC?
Specifically engineered for MX13 engines built between 2011 and 2013, this DOC ensures optimal oxidation and smooth exhaust flow. Choosing the proper unit prevents backpressure issues, extends the life of downstream DPF or SCR systems, and reduces fault codes caused by poor-quality replacements.
Key Benefits
✅ Designed for Paccar MX13 engines (2011–2013)
✅ Converts CO and hydrocarbons into cleaner emissions
✅ Supports and protects DPF and SCR performance
✅ Heavy-duty construction resists high temperatures and vibration
✅ Direct-fit installation for precise and reliable setup
Applications
This DOC is ideal for trucks, fleet vehicles, and equipment powered by Paccar MX13 engines from 2011–2013. It serves as the first stage in the exhaust aftertreatment process, helping maintain cleaner emissions and consistent performance on every route.
Installation Notes
Ensure the engine and exhaust system are completely cooled before beginning. Remove the old DOC, check adjoining pipes, sensors, and seals for wear or damage, and install the new unit with fresh gaskets. Torque all bolts to Paccar specifications, confirm proper sealing, and clear any diagnostic codes. After installation, perform a regeneration or drive cycle to ensure optimal function.
Final Thoughts
Built for power and precision, this Paccar MX13 DOC provides the durability, performance, and compatibility your emission system needs—keeping your truck clean, compliant, and ready for the long haul.