Navistar MaxxForce 11,13 DOC

Reliable Emissions Control: Navistar MaxxForce 11 / MaxxForce 13 DOC

What is it?
The Navistar MaxxForce 11/13 Diesel Oxidation Catalyst (DOC) is an essential emissions-control component that converts hydrocarbons (HC) and carbon monoxide (CO) into less harmful compounds before they reach downstream after-treatment parts. It helps maintain cleaner exhaust flow and supports proper system function for engines in the MaxxForce 11 and 13 family.

Why Choose the Navistar MaxxForce 11/13 DOC?
This DOC is engineered to match the specifications required for MaxxForce 11 and 13 engines. Its design aligns with the factory exhaust layout, providing correct port placement, mounting fitment, and exhaust flow characteristics. Using a properly matched DOC helps prevent back-pressure issues, soot buildup, and emissions-related trouble codes.

Key Benefits
✅ Direct-Fit Design: Built to match original mounting points and sensor locations for straightforward installation.
✅ Durable Construction: Withstands high exhaust temperatures and continuous heavy-duty operation.
✅ Effective Oxidation: Converts harmful gases into cleaner emissions before entering the DPF and other components.
✅ System Stability: Helps reduce emissions-related faults and supports consistent engine operation.
✅ Downstream Protection: Maintains proper exhaust balance, supporting DPF and SCR longevity.

Applications
This DOC is intended for trucks and vocational vehicles powered by Navistar MaxxForce 11 or MaxxForce 13 engines. It is commonly used across Class 8, regional haul, vocational, and fleet applications where dependable emissions control is essential.

Installation Notes
Professional installation is recommended. Verify compatibility with your engine model, then remove the old DOC and inspect all flanges, clamps, and sensors for wear or soot buildup. Clean all sealing surfaces before installing the new unit, replace gaskets as needed, and torque fasteners to manufacturer specifications. After installation, run the engine to check for proper exhaust flow, temperature readings, and system stability.

Final Thoughts
The Navistar MaxxForce 11/13 DOC provides a reliable, OEM-matched solution for restoring clean exhaust management and supporting long-term after-treatment performance. It helps keep your truck compliant, dependable, and ready for demanding daily operation.