Restore exhaust filtration performance with this premium Skyline aftermarket International / Navistar 2520606C91 / 2516807C91 / 5011531R91 DPF Replacement. This brand-new unit serves as a direct-fit alternative to high-traffic OEM numbers 2520606C91, 2516807C91, 5011531R91, and 5013251R91. Engineered as an exact-fit replacement for heavy-duty systems running International / Navistar A26 engine platforms, it requires no exhaust system modifications for installation, carries zero core charge, and ships free within the continental United States.
✓ Free Shipping
✓ EPA Compliant
International / Navistar 2520606C91 Cross Reference
How to Verify Your Unit: This direct-fit replacement diesel particulate filter replaces parts stamped with housing numbers, casting codes, or tags matching any of the interchangeable manufacturing references listed below:
Select the setup from the product options above that best fits your shop's needs:
Full Kit (Best Value): Includes (1) Brand-New Unit, (2) Original Equipment Quality installation gaskets (2520183C1), and (2) heavy-duty hardware clamps (2520177C1).
DPF Only: Includes the replacement component only. Installation gaskets and clamps are not included.
Key Features & Specifications for Part 2520606C91 / 2516807C91
Built in the USA: Designed, engineered, and manufactured in America.
No Core Charge: Brand-new aftermarket replacement element; eliminates core return freight costs and paperwork delays.
Exact-Fit™ Technical Dimensions: Engineered with OEM-matching physical sizing, pre-machined sensor bosses, and rigid factory-spec hanger brackets for direct exhaust installation with zero modifications required.
Substrate Performance Matrix: High-efficiency precious metal washcoat core substrate ensures precise regeneration intervals and dependable commercial engine emission control.
Industry-Leading Warranty: Backed by a 3-year unlimited mileage warranty on all Skyline aftermarket solutions.
EPA Compliant: Meets federal emissions standards for legal installation nationwide.
Free Shipping: Free ground shipping within the continental United States. Orders placed before 2:00 PM Eastern ship out the same business day.
International / Navistar Vehicle Fitment Guide
Direct alternative solution for heavy-duty commercial vehicles configured with compatible aftertreatment setups from approximately 2017 to present models. Optimized for:
Engine Platforms: International / Navistar A26 heavy-duty diesel engine platforms.
Chassis Fitments: This specific physical layout matches frame attachments across line-haul, regional haul, and severe vocational truck applications:
International Platforms: LT625, LoneStar, and HX Series trucks equipped with an A26 engine tracking under indexing numbers 2520606C91 and 2516807C91.
Signs Your Aftertreatment System Needs Replacement
Frequent, unprompted, or incomplete diesel particulate filter regeneration cycles linked to active truck error logs
Excessive particulate soot loading, filter face-plugging, or high differential exhaust backpressures
Active dashboard diagnostic trouble codes (DTCs) signaling low soot capacity or catalyst substrate failures
Unexplained commercial engine backpressure spikes or sudden power loss under heavy freight loading
*Note: Always verify exact vehicle compatibility using your vehicle's VIN number, emissions family descriptor tag, or the original stamped OEM part number on your filter unit casing before placing an order.
California Shipping Notice: This product is EPA compliant but is NOT for sale in California and cannot be shipped to a California address.
Disclaimer: Product images for reference only. Final replacement hardware items matching OEM specifications such as gaskets, clamps, and sensor ports depend on your kit configuration. Selecting the "Full Kit" option adds the explicitly listed installation components to your shipment. Price is for (1) DPF.
Warranty Information
Skyline offers a 3-year, unlimited mileage warranty on all their DPFs and DOCs. See link in description for warranty terms