International/Navistar 2510615C92 2510615C91 5011254R91 2510794C91 DOC Inlet Module Replacement

Restore commercial fleet emissions performance with this premium Skyline aftermarket International / Navistar 2510615C92 / 2510794C91 Diesel Oxidation Catalyst (DOC) Inlet Module Replacement. Built as a direct replacement for your factory unit, this brand-new flow-through catalyst module completely swaps out with OEM cross-references 2510615C92, 2510794C91, 2510615C91, and 5011254R91. Engineered for an exact fit, with no installation modifications required, it installs cleanly into the factory exhaust setup, carries zero core charge, and ships free within the continental United States.

International / Navistar Cross Reference

How to Verify Your Unit: This direct-fit replacement catalyst replaces components stamped with housing, casting, or manufacturing tags matching any of the interchangeable assembly numbers or supplier cross-references listed below:

Choose Your Kit Configuration

Select the setup from the product options above that best fits your shop's needs:

• Full Kit (Best Value): Includes (1) Brand-New Component and all required direct-fit installation gaskets and heavy-duty clamps.
• Component Only: Includes core unit only. Hardware items excluded.

Key Features for Skyline DOC Filters

• Proudly Built in the USA: Designed, engineered, and manufactured in America.
• No Core Charge: Brand-new aftermarket component; completely eliminates dirty core tracking and return hassles.
• Exact-Fit™ Technical Dimensions: Built with matching inlet/outlet outer diameters, pre-machined sensor ports, and specialized body hanger brackets for zero exhaust system modifications.
• Substrate: Advanced flow-through catalyst core features optimized precious metal washcoat loading to maintain optimal exhaust temperatures, regulate low backpressure limits, and sustain downstream emissions control.
• Industry-Leading Warranty: Backed by an extensive 3-year unlimited mileage coverage matrix.
• EPA Compliant: Meets federal emissions standards for applicable particulate matter reduction and hydrocarbon oxidation requirements nationwide.
• Fast Free Shipping: Free ground freight within the continental United States. Orders confirmed before 2:00 PM Eastern ship out the same business day. Overnight and expedited shipping options are available at checkout.

Vehicle Fitment Guide

Direct alternative solution for approximately 2008 to 2013 model year vehicles running commercial transportation and vocational architectures with horizontal chassis exhaust configurations:

• Engine Platforms: Navistar MaxxForce 11 / MaxxForce 13 (International / Navistar I766 11L & I767 13L Inline-6 Heavy-Duty Diesel platforms)
• Vehicle Applications: Fits select International / Navistar heavy-duty transport vehicles, vocational dump/refuse classes, and Class 8 fleets running MaxxForce 11 or MaxxForce 13 setups (2008-2013).
• Common Models: International ProStar, International 9900i series architectural applications.

Signs Your Diesel Oxidation Catalyst (DOC) Needs Replacement

• Unprompted dashboard diagnostic trouble codes (DTCs) pointing directly to poor catalytic conversion efficiencies or upstream temperature sensor faults.
• Excessive HC (hydrocarbon) mask face-plugging, raw diesel washing, or heavy carbon scaling across the internal honeycomb channels.
• Unexplained commercial engine backpressure spikes or noticeable horsepower deterioration under loaded trailer pulls.
• Inability of downstream DPF filter components to achieve full regeneration temperatures due to inadequate heat generation across the catalyst cell assembly.

*Note: Always verify exact vehicle compatibility using your vehicle's VIN number, emissions family descriptor tag, or the original stamped part number on your catalyst unit casing before placing an order.

Disclaimer: Product images for reference only. Hardware depends on configuration. Price is for (1) unit. Inventory levels are subject to local availability updates. Selecting the "Full Kit" option adds the explicitly listed installation components to your shipment.