Cummins 4353812 / A048S226 DOC Inlet Module Replacement

Restore commercial fleet emissions performance with this premium Skyline aftermarket Cummins 4353812 / A048S226 DOC Inlet Module Replacement. Also acting as a high-efficiency direct-fit DOC filter alternative, this brand-new flow-through catalyst module serves as a direct counter-part to OEM cross-references 4353812, A048S226, 4353812NX, and 4353812RX. Engineered for exact physical proximity within medium-duty commercial vehicles, it installs cleanly with no exhaust system modifications, carries zero core charge, and ships free within the continental United States.

Cummins 4353812 Cross Reference

How to Verify Your Unit: This direct-fit replacement replaces components stamped with housing numbers, casting codes, or tag profiles matching any of the interchangeable manufacturing 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, (1) installation gasket (2871451), (1) installation gasket (2880214), (1) heavy-duty clamp (2871861), and (1) heavy-duty clamp (2880212).
• Component Only: Includes core unit only. Hardware items excluded.

Key Features & Specifications for Part 4353812 / A048S226

• 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 Performance Matrix: Advanced flow-through catalyst core uses verified washcoat metal loading to sustain exhaust temperature control and lower backpressure limits.
• Industry-Leading Warranty: Backed by an extensive 3-year unlimited mileage coverage matrix.
• EPA Compliant: Meets federal emissions standards for legal installation 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.

Cummins Vehicle Fitment Guide

Direct alternative solution for 2013 to 2016 model year vehicles running medium-duty regional transportation and vocational architectures with horizontal chassis exhaust configurations. Deployed widely across standard Class 6, Class 7, regional box lines, delivery trucks, municipal frameworks, and passenger fleets:

• Freightliner Applications: Medium-duty box and delivery configurations including Business Class M2 106 platforms.
• Kenworth Applications: Conventional medium-duty series trucks such as Kenworth T270 and T370 units tracking under codes 4353812 and A048S226.
• Peterbilt Applications: Regional pickup/delivery networks and vocational frameworks matching models 330, 337, and 348.
• International / Navistar Applications: Medium-duty commercial fleets running inline commercial engine profiles.
• Bus Fleet Systems: Heavily optioned across transit passenger frameworks and school route buses built by Blue Bird, Thomas Built (Saf-T-Liner C2), and IC Bus (CE Series).

Signs Your Diesel Oxidation Catalyst (DOC) Needs Replacement

• Frequent, unprompted, or incomplete DPF regeneration cycles triggered by active trouble codes matching 4353812 / A048S226
• Excessive particulate soot face-plugging or heavy face mask scaling across the internal catalyst face assembly
• Active dashboard diagnostic trouble codes (DTCs) pointing directly to poor catalyst conversion efficiencies
• Unexplained commercial engine backpressure spikes or noticeable horsepower deterioration under loaded trailer pulls

*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.