Paccar MX13 DOC Filter 2018-2024: OEM 2131526

Precision Flow, Reliable Performance: PACCAR MX13 DOC Filter (2018–2024, OEM 2131526)

What is it?
The PACCAR MX13 DOC Filter (2018–2024, OEM 2131526) is a Diesel Oxidation Catalyst (DOC) module designed for the PACCAR MX13 engine platform. Its main purpose is to oxidize hydrocarbons (HC) and carbon monoxide (CO) in the exhaust stream, converting them into less harmful gases before they reach downstream components like the DPF and SCR. This process supports cleaner emissions and improved overall exhaust efficiency.

Why Choose the PACCAR MX13 DOC Filter (OEM 2131526)?
Built to PACCAR’s exact OEM specifications, this DOC ensures perfect alignment with factory mounting points, sensor ports, and exhaust flow design. Using an OEM-spec unit guarantees reliable fitment, stable exhaust flow, and long-lasting performance. It provides consistent oxidation efficiency, helping maintain emission compliance and reducing unnecessary system faults or maintenance interruptions.

Key Benefits
✅ OEM Fit and Function: Precisely designed for seamless installation with factory flanges and sensor ports.
✅ Heavy-Duty Construction: Engineered to handle high exhaust temperatures, vibration, and continuous load cycles.
✅ Efficient Oxidation: Reduces harmful exhaust gases for cleaner operation and environmental compliance.
✅ System Reliability: Maintains proper exhaust dynamics, minimizing the risk of error codes or performance loss.
✅ Downstream Protection: Ensures cleaner exhaust for the DPF and SCR, helping extend component lifespan.

Applications
The PACCAR MX13 DOC Filter (2018–2024, OEM 2131526) is compatible with heavy-duty trucks, commercial fleets, and vocational vehicles powered by MX13 engines. It’s ideal for applications that demand consistent emissions performance, reliability, and long service life—whether on the highway or in rigorous vocational use.

Installation Notes
Although this DOC is designed as a direct-fit replacement, professional installation is recommended. Confirm the part number and engine compatibility before beginning. Carefully remove the old DOC unit, inspect flanges, clamps, and gaskets for damage, and clean all mating surfaces. Replace any worn seals or hardware, then install the new DOC with the correct orientation and torque specifications. Reconnect all sensors, clear diagnostic codes, and run the engine through a warm-up cycle while checking for leaks or irregular exhaust readings. Proper installation ensures efficient oxidation and stable emission control performance.

Final Thoughts
For dependable emission control and optimized exhaust performance, the PACCAR MX13 DOC Filter (2018–2024, OEM 2131526) delivers OEM-level quality and precision. It provides the reliability, durability, and clean-air performance your heavy-duty engine needs to stay compliant and operating efficiently mile after mile.