Paccar PX8 DOC 2008-2010

Clean Emissions Restored – Paccar PX8 DOC (2008–2010)

What is it?
The DOC (Diesel Oxidation Catalyst) for Paccar PX8 engines (model years 2008–2010) is an emissions component that oxidizes hydrocarbons (HC) and carbon monoxide (CO) in exhaust gases before they continue downstream in the aftertreatment chain.

Why choose this OEM DOC?
Built to Paccar’s original specifications, this DOC ensures correct exhaust flow, matching backpressure, and reliable durability. Using the proper DOC helps prevent diagnostic faults, performance issues, or early failure that can arise from inferior aftermarket units.

Key Benefits
 ✅ Drop‑in compatibility with PX8 engines (2008–2010)
 ✅ Efficient conversion of HC & CO emissions
 ✅ Maintains balanced exhaust flow and limits backpressure
 ✅ Durable design for high-temperature and harsh conditions
 ✅ Compatible with factory emission control systems

Applications
Used in trucks or equipment powered by the Paccar PX8 engine within 2008–2010. It is essential in systems where oxidization upstream of particulate filters or catalysts is required for emissions compliance.

Installation Notes
A qualified technician should perform the installation. Ensure the exhaust system is cool before starting. Carefully remove the existing DOC, preserving sensor wiring. Clean all flange surfaces and inspect mounting interfaces. Replace gaskets or seals as needed. Position and install the new DOC with correct alignment, then torque all fasteners to Paccar’s specifications. After installation, inspect for leaks, verify exhaust flow, and clear any emissions or diagnostic codes via system tools.

Final Thoughts
If your PX8 engine is showing emissions warnings, diagnostic errors, or exhaust irregularities, replacing the DOC with the correct 2008–2010 unit restores oxidation performance and helps maintain system integrity. With factory-level design and fit, it supports cleaner operation and reliable emission control.