Navistar MaxxForce 11,13 DOC

Dependable Exhaust Treatment: Navistar MaxxForce 11, 13 DOC

What is it?
The Navistar MaxxForce 11, 13 Diesel Oxidation Catalyst (DOC) is a key emissions component that converts hydrocarbons (HC) and carbon monoxide (CO) into less harmful gases. Positioned at the front of the after-treatment system, it sets the foundation for cleaner exhaust flow before gases reach the DPF and other downstream parts.

Why Choose the Navistar MaxxForce 11, 13 DOC?
This DOC is engineered to meet the original design specifications of MaxxForce 11 and MaxxForce 13 engines. Its precise fitment ensures correct exhaust routing, proper sensor alignment, and stable oxidation performance. Using the correct DOC helps maintain system balance, minimizes fault codes, and supports overall emissions reliability.

Key Benefits
✅ Exact Fitment: Designed to match factory mounting points and exhaust geometry for a smooth installation.
✅ High-Temperature Durability: Built to withstand demanding heat cycles and heavy-duty operating conditions.
✅ Effective Emission Reduction: Converts HC and CO efficiently, supporting cleaner and more stable engine operation.
✅ Reduced System Interruptions: Helps prevent emissions-related warnings and after-treatment failures.
✅ Protects Downstream Components: Provides cleaner exhaust conditions that support the health of the DPF and other parts.

Applications
This DOC is intended for trucks and vocational vehicles equipped with Navistar MaxxForce 11 or MaxxForce 13 engines. It is commonly used in regional-haul, Class 8, municipal fleets, and vocational applications where consistent emissions control and system longevity are critical.

Installation Notes
Professional installation is recommended. Confirm engine compatibility before beginning. Remove the old DOC and inspect flanges, clamps, and sensors for heat wear or soot buildup. Clean all mating surfaces and replace any worn gaskets to ensure a proper seal. Install the new DOC using manufacturer torque specifications, reconnect all sensors, then clear stored codes. Finally, run the engine to confirm stable exhaust readings and proper system operation.

Final Thoughts
A reliable DOC is vital to maintaining a clean and compliant exhaust system. The Navistar MaxxForce 11, 13 DOC delivers the correct fit, durability, and oxidation performance needed to keep your truck running efficiently and meeting emissions standards with confidence.