Paccar PX6 DOC

Essential Emission Control Module: PACCAR PX6 DOC

What is it?
The Diesel Oxidation Catalyst (DOC) for the PACCAR PX6 engine is a key after-treatment component. It oxidizes hydrocarbons (HC) and carbon monoxide (CO) in the exhaust stream, helping prepare the gases for further treatment and supporting cleaner overall emissions.

Why Choose the PACCAR PX6 DOC?
This DOC is specifically engineered for the PACCAR PX6 engine platform, ensuring correct mounting fitment, exhaust flow design, and compatibility with sensor applications. Using the correct DOC helps maintain proper exhaust dynamics, minimize back-pressure, and support downstream components in the after-treatment system.

Key Benefits
✅ Tail-matched fitment for PX6 installations
✅ Heavy-duty construction designed for high-temperature and long-cycle duty
✅ Effective oxidation of HC and CO, promoting cleaner exhaust output
✅ Strengthens system stability and helps lower risk of after-treatment faults
✅ Supports longevity of downstream components like catalysts, sensors and exhaust piping

Applications
This DOC is ideal for vehicles powered by the PACCAR PX6 engine where emission controls are required — covering medium‐ and heavy‐duty applications where durability and system integrity are key.

Installation Notes
Professional installation is recommended. Verify engine compatibility and confirm the installation part is correct. Remove the existing DOC, inspect all mounting surfaces, flanges and sensors for wear or soot buildup, then clean thoroughly. Install the new unit with correct torque settings and orientation, replace any gaskets as needed, reconnect sensors, clear diagnostics, and test the system to ensure normal exhaust readings and system performance.

Final Thoughts
A properly selected and installed DOC is essential for efficient exhaust treatment and system longevity. The PACCAR PX6 DOC offers a robust, engine-specific solution designed to deliver durability, emissions compliance and reliable service life.