Cleaner Power You Can Count On: Navistar N13 DOC (2011–2013)
What is it?
The Navistar N13 Diesel Oxidation Catalyst (DOC) for 2011–2013 engines is an essential emissions component that transforms harmful exhaust gases—like carbon monoxide (CO) and unburned hydrocarbons (HC)—into cleaner, less toxic emissions before they move through the rest of the aftertreatment system.
Why choose this DOC?
Specifically designed for Navistar N13 engines from 2011–2013, this DOC ensures consistent oxidation performance and efficient exhaust flow. Using a proper OEM-fit component helps prevent backpressure issues, protects downstream systems such as the DPF and SCR, and minimizes costly diagnostic faults or engine derates.
Key Benefits
✅ Engineered precisely for Navistar N13 engines (2011–2013)
✅ Promotes cleaner exhaust output and reduced emissions
✅ Helps maintain DPF and SCR efficiency and longevity
✅ Built tough to handle high heat and demanding operation
✅ Direct-fit design allows smooth, straightforward installation
Applications
Ideal for heavy-duty trucks and equipment powered by Navistar N13 engines built between 2011 and 2013. This DOC serves as the first stage in the emissions process, supporting cleaner combustion and dependable performance mile after mile.
Installation Notes
Always begin with a cool exhaust system. Remove the old DOC, inspect surrounding components like sensors, pipes, and clamps, and install the new unit with fresh gaskets. Torque bolts according to Navistar specifications, verify proper fitment, and reset any active fault codes. A short drive or regeneration cycle afterward ensures complete functionality.
Final Thoughts
When your Navistar N13 engine needs a high-performing DOC, this replacement offers the durability, fit, and performance required to keep your emissions system running clean and compliant—helping you stay on the road with confidence.