Product Overview
Aftermarket DOC for Cummins / PACCAR 4353249 / 1978266 / A047V447
Interchangeable Component Configurations: 4353249 | 1978266 | A047V447 | 5298340 | XN0619
Cummins / PACCAR 4353249 DOC Inlet Module Cross Reference
Verify Your Unit: This direct-fit replacement diesel oxidation catalyst module replaces parts stamped with housing numbers, casting codes, or tags matching any of the interchangeable manufacturing references listed below:
| Manufacture | Cross Reference Part Numbers |
|---|---|
| Cummins OEM | 4353249, 4353249NX, 4353249RX, A047V447, 5298340, 5298340NX, 5298340RX, 5286910, 5286910NX, 5286910RX, A035E403, A041P368, A047V562 |
| PACCAR OEM | 1978266, 1978266PE, 1978266PEX |
| Skyline | XN0619, XN0619-M, XN0619-C |
| Roadwarrior | C0127-ID |
| Dinex | 58041, 58041-NCG |
| DuraFit | C20-0200 |
| Global Emission Systems | GESi-547 |
Restore emissions performance with this premium aftermarket replacement element for Cummins / PACCAR OEM DOC parts 4353249, 1978266, and A047V447. This brand-new Diesel Oxidation Catalyst (DOC) serves as a standalone direct replacement for your commercial fleet's factory setup. Engineered specifically for heavy-duty systems running Cummins ISX12, ISX15, and QSX engine platforms, it requires no exhaust system modifications for installation, carries zero core charge, and ships free within the continental United States.
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 Unit, (1) Original Equipment Quality 2866337 Aftermarket Flange Gasket, (1) 2871453 Aftermarket Flange Gasket, (1) 2871863 Heavy-Duty Clamp, and (1) 5290118 Heavy-Duty Clamp.
- DOC Only: Includes the replacement catalyst module core only. Service gaskets and mounting clamps are not included.
Technical Specifications
| Measurement Parameter | Specification Value |
|---|---|
| Material | Premium Stainless Steel |
| Weight | 59.54 lbs (27.03 kg) |
| Length | 12.80 inches (325.12 mm) |
| Canister Diameter | 13.15 inches (334.00 mm) |
| Overall Dimensions (W x H) | 13.15 x 13.15 inches (334.00 x 334.00 mm) |
| Exhaust Emission Norm | EPA Compliant |
Warranty
Backed by a three-year unlimited mileage warranty on all aftermarket DPF and DOCs.
Key Features & Specifications for Part 4353249 / 1978266 / A047V447
- Proudly Built in the USA: Designed, engineered, and manufactured in America.
- No Core Charge: Brand-new aftermarket replacement element; eliminates tracking core returns, return freight charges, and bank credit delays.
- Technical Dimensions: Engineered with OEM-matching physical layout sizing, pre-machined sensor bung placements, and rigid indexing alignment pins for drop-in installation with zero exhaust alterations required.
- Catalyst Substrate Matrix: High-performance flow-through washcoat substrate configuration allows correct exhaust gas temperature generation to properly support downstream DPF passive regeneration.
- EPA Compliant: Meets federal emissions standards for legal installation.
- Free Shipping: Free ground shipping within the continental United States. Orders placed before 2:00 PM Eastern ship out the same business day.
Heavy-Duty Vehicle Fitment Guide
Direct alternative solution for commercial heavy-duty trucks and vocational equipment configured with compatible emissions systems from approximately 2013 to 2016 chassis layouts. Optimized for:
- Engine Platforms: Cummins ISX15, Cummins ISX12, and QSX 15-liter industrial platforms operating under applicable EPA guidelines.
- Chassis Fitments: This physical layout matches framework attachments across major line-haul builds including Kenworth (T660, T680, W900), Peterbilt conventional applications, Freightliner (Cascadia, Coronado), International (ProStar, LoneStar), and severe vocational assemblies (motorcoaches, mixers, dumps).
Signs Your Diesel Oxidation Catalyst (DOC) Needs Replacement
- Inability to initiate or complete manual parked DPF regeneration cycles due to low internal exhaust face temperature generation across numbers 4353249 / 1978266 / A047V447 / 5298340
- Raw unburned fuel dripping from exhaust clamps or heavy oil soot contamination visible on the internal inlet module matrix
- Active dashboard diagnostic trouble codes (DTCs) signaling low catalyst efficiency levels or abnormal upstream sensor delta values
- Unexplained increase in downstream DPF filter plugging frequency due to catalyst washcoat breakdown
*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.
Looking for a reliable replacement filter fast?
Our warehouse stocks premium heavy-duty filtration components ready for immediate shipment. Contact our team today for bulk commercial fleet pricing and cross-reference validation.
Frequently Asked Questions
Is there a core charge for this aftermarket emissions unit?
No, this is a 100% brand-new aftermarket component. Unlike remanufactured factory units, there is absolutely zero core charge, zero tracking paperwork required, and no need to spend money shipping your old, dirty unit back to us.
Does this replacement unit come with the necessary clamps and gaskets?
When you select the "Full Kit" option from the dropdown on this page, all exact-fit installation gaskets and heavy-duty clamps required for installation are bundled and shipped directly with the assembly. Selecting the component-only option provides the bare unit without hardware.
How fast will my order ship out?
Orders confirmed before 2:00 PM Eastern standard time ship out from our closest regional fulfillment hub on the exact same business day. Free standard ground shipping is included to the continental United States, and expedited overnight air choices can be selected directly at checkout.
How do I verify this aftermarket filter matches my truck's setup?
You can verify fitment by identifying the original casting, housing, or tag stamp directly on your factory exhaust unit canister shell. If that number matches any of the cross-references listed on this page, or if your engine model and year line up with our application guide, it will bolt directly in with a perfect factory alignment.
Disclaimer: Product images for reference only. Final replacement hardware items matching OEM parameters 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 one (1) DPF or DOC only.
