Revamp Exhaust Cool with PACCAR MX13 DOC
What is it?
The Diesel Oxidation Catalyst (DOC) for the PACCAR MX13 engine (2018–2022) is a vital emissions-control component. It converts hydrocarbons (HC) and carbon monoxide (CO) in the exhaust into less harmful gases, paving the way for downstream DPF and SCR systems. tamerx.com
Why choose this DOC?
Designed to match the PACCAR MX13 engine, this DOC delivers the correct fit and chemistry for reliable aftertreatment operation. A damaged or clogged catalyst can cause higher back-pressure, frequent regen cycles, reduced fuel efficiency, or emissions system fault codes.
Key Benefits
✅ Converts harmful gallues into cleaner exhaust output
✅ Supports downstream emissions components to operate efficiently
✅ Helps lower back-pressure and improve system flow
✅ Direct-fit design—no modifications required
✅ Built for heavy-duty service and high-temperature conditions
Applications
Ideal for heavy-duty trucks, tractors, and equipment powered by the PACCAR MX13 engine (2018–2022)—especially where emissions compliance and system uptime are critical.
Installation Notes
Allow the exhaust system to cool before servicing. Inspect the catalyst housing and related exhaust connections for soot buildup or damage. Replace old gaskets, clamps and mounting hardware for a secure fit. After installation, clear any diagnostic fault codes and monitor exhaust-system behavior to confirm correct function.
Final Thoughts
If your MX13 engine is showing signs of emissions system inefficiency—such as frequent regens, elevated back-pressure, or fault codes—the correct DOC replacement is the key fix. With accurate fit and robust construction, this component helps your engine run cleaner and more reliably.