Cummins ISL DOC Filter 2022-2024: OEM 5509100

Built for Modern Compliance: Cummins ISL DOC Filter (2022–2024, OEM 5509100)

What is it?
The Cummins ISL DOC Filter (2022–2024, OEM 5509100) is a Diesel Oxidation Catalyst (DOC) engineered for Cummins ISL engines produced between 2022 and 2024. It plays a vital role in the emissions system by oxidizing hydrocarbons (HC) and carbon monoxide (CO) into less harmful compounds before exhaust gases flow into downstream components, such as the DPF and SCR systems.

Why Choose the Cummins ISL DOC Filter (OEM 5509100)?
This DOC filter is manufactured to match Cummins’ exact OEM standards. The geometry, flow characteristics, and sensor placements replicate factory specifications to guarantee proper exhaust flow, easy installation, and reliable emissions control. Choosing an OEM-grade DOC ensures consistent exhaust performance, fewer installation issues, and long-term system dependability.

Key Benefits
✅ OEM Fit and Function: Designed to match factory flanges, mounting points, and sensor locations for direct replacement.
✅ Durable Construction: Withstands high exhaust heat, vibration, and extended use under demanding conditions.
✅ Improved Emission Conversion: Converts HC and CO into safer gases for cleaner exhaust output.
✅ Operational Consistency: Helps reduce diagnostic fault codes and maintains smooth emissions performance.
✅ System Longevity: Protects downstream components by ensuring a clean and balanced exhaust stream.

Applications
The Cummins ISL DOC Filter (2022–2024, OEM 5509100) is ideal for medium- and heavy-duty trucks, buses, and commercial vehicles powered by Cummins ISL engines. It’s particularly suited for regional haul, vocational, and fleet operations requiring dependable emissions performance and regulatory compliance.

Installation Notes
This DOC filter is a direct replacement and should be installed by a qualified technician. Before installation, confirm part number compatibility with your engine model. Remove the old filter carefully, inspecting all sensor ports, clamps, and gaskets for wear or damage. Clean all mating surfaces and replace seals where necessary. Align the new DOC correctly, torque fasteners to manufacturer specifications, and reconnect all sensors and wiring. After installation, clear any diagnostic codes and run the engine to verify stable exhaust temperatures and proper emissions function.

Final Thoughts
A high-quality DOC filter is essential for maintaining engine efficiency and emissions compliance. The Cummins ISL DOC Filter (2022–2024, OEM 5509100) delivers OEM-level precision, reliability, and durability—helping your engine stay clean, compliant, and ready for the road ahead.