Cummins L9 DOC Filter 2022-2024: OEM 4394862

Enhanced DOC Filtration for Cummins L9 (2022–2024)

What is it?
The Cummins L9 DOC Filter OEM 4394862 is a critical emissions control component located within the Diesel Oxidation Catalyst (DOC) of your engine’s aftertreatment system. It’s designed to help oxidize harmful exhaust pollutants—such as hydrocarbons and carbon monoxide—into less harmful substances before the exhaust continues through the emissions system, contributing to cleaner operation and compliance with emissions standards.

Why choose OEM 4394862?
This DOC filter is specifically engineered for Cummins L9 engines manufactured between 2022 and 2024. Its precise, OEM-quality design ensures proper integration with your vehicle’s factory aftertreatment hardware, helping reduce the risk of emissions faults and maintain dependable performance. With genuine OEM construction, you’re getting reliable emissions control that’s built to last.

Key Benefits
✅ Designed for 2022–2024 Cummins L9 engines
✅ Helps lower hydrocarbons and carbon monoxide in exhaust
✅ Promotes smoother aftertreatment system performance
✅ Built to handle high exhaust temperature environments
✅ Direct-fit replacement for easier installation

Applications
This DOC filter is ideal for Cummins L9-powered commercial trucks and equipment built from 2022 through 2024. Common applications include medium- and heavy-duty vehicles, vocational rigs, delivery fleets, and other diesel machinery that depend on effective emissions control.

Installation Notes
Before installation, make sure the exhaust and aftertreatment system are fully cooled. Inspect surrounding sensors, gaskets, and connectors for wear or contamination. Follow Cummins-recommended installation procedures and torque specifications to ensure proper sealing and optimal performance. After installation, verify that the emissions system is working correctly.

Final Thoughts
When your Cummins L9 engine shows emissions-related warnings or reduced aftertreatment effectiveness, the OEM 4394862 DOC filter delivers a dependable, OE-grade solution. Designed for accurate fit and consistent emissions control, it helps keep your engine compliant and performing efficiently. Tamerx has this DOC filter in stock and ready to ship.