International Navistar A26 DPF Filter 2021-2024: OEM 2521228C1

Dedicated Particulate Control for International A26 Platforms (2021–2024)

What is it?
The International Navistar A26 Diesel Particulate Filter (DPF), covering 2021–2024 model years and identified by OEM 2521228C1, is an exhaust aftertreatment component designed to collect and contain soot produced during normal engine operation. The filter works alongside the vehicle’s regeneration process to manage particulate buildup and maintain proper exhaust flow.

Why choose this DPF Filter?
This DPF is manufactured to align with Navistar A26 system requirements, ensuring proper fitment and compatibility with temperature sensors, pressure sensors, and regeneration controls. When particulate filters become overloaded or deteriorated, exhaust restriction can increase and aftertreatment alerts may occur. Installing the correct OEM-specified filter helps maintain predictable regeneration cycles and consistent exhaust behavior.

Key Benefits
✅ Engine-matched design for International A26 applications
✅ Captures particulate matter to support emissions control
✅ Helps maintain steady exhaust flow during operation
✅ Direct-fit configuration for straightforward replacement
✅ Built for continuous use in heavy-duty operating environments

Applications
This DPF filter is used on International trucks and commercial vehicles equipped with A26 engines built between 2021 and 2024. It’s commonly found in regional hauling fleets, vocational trucks, and high-utilization applications where consistent particulate management is required to keep vehicles in service.

Installation Notes
Allow the exhaust system to cool completely before removal. Disconnect the existing DPF filter and inspect nearby exhaust components and sensors for soot accumulation or damage. Install the replacement filter using new clamps and seals to ensure proper seating. After installation, perform a system check to confirm proper sensor readings and regeneration readiness.

Final Thoughts
When soot accumulation or aftertreatment warnings begin affecting vehicle operation, replacing the DPF with the correct OEM-specified component can help restore balanced exhaust conditions. The International Navistar A26 DPF Filter (OEM 2521228C1) plays an essential role in supporting controlled particulate handling and consistent aftertreatment function.