Product Overview
Cummins PACCAR 4353249 1978266 Diesel Oxidation Catalyst DOC
Interchange References: 4353249, 4353249NX, 4353249RX, 1978266, 1978266PE, 1978266PEX, A047V447, 5298340, 5298340NX, 5298340RX, 5286910, 5286910NX, 5286910RX, A035E403, A041P368, A047V562, XN0619, XN0619-M, XN0619-C, C0127-ID, 58041, 58041-NCG, C20-0200, GESi-547, 2866337, 2871453, 2871863, 5290118
Cummins 4353249 PACCAR 1978266 DOC Cross Reference Table
How to Verify Your Unit: This direct-fit Diesel Oxidation Catalyst replaces Cummins and PACCAR DOC units stamped with any of the OEM or aftermarket cross-reference numbers listed below.
| Manufacturer | 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 exhaust aftertreatment performance with this premium aftermarket Cummins PACCAR Diesel Oxidation Catalyst DOC. This brand-new DOC inlet module is a direct-fit replacement for Cummins 4353249, PACCAR 1978266, A047V447, 5298340, and 5286910, with additional compatible Cummins, PACCAR, and aftermarket cross-reference numbers listed in the table above. Designed for select Cummins ISX12, ISX15, and QSX heavy-duty aftertreatment applications, this DOC installs without exhaust system modifications, carries no core charge, is backed by a 3-year unlimited mileage warranty, is EPA compliant, and ships free within the continental United States.
Cummins ISX12 ISX15 QSX PACCAR DOC Fitment Guide
This Cummins PACCAR DOC inlet module is designed for select heavy-duty commercial trucks and vocational applications equipped with compatible Cummins ISX12, ISX15, or QSX exhaust aftertreatment systems.
- Engine Platforms: Select Cummins ISX12, Cummins ISX15, and QSX 15-liter engine applications.
- Approximate Emissions Era: Commonly associated with select EPA-compliant heavy-duty aftertreatment systems from approximately 2013 to 2016, depending on truck configuration.
- Common Chassis Applications: Select Kenworth, Peterbilt, Freightliner, International Navistar, and vocational truck applications equipped with the matching Cummins or PACCAR DOC assembly.
- Compatible Cummins Numbers: 4353249, 4353249NX, 4353249RX, A047V447, 5298340, 5298340NX, 5298340RX, 5286910, 5286910NX, 5286910RX, A035E403, A041P368, and A047V562.
- Compatible PACCAR Numbers: 1978266, 1978266PE, and 1978266PEX.
Choose Your Kit Configuration
Select the setup from the product options above that best fits your shop's needs:
- Full Kit (Best Value): Includes one (1) brand-new DOC unit, one (1) 2866337 flange gasket, one (1) 2871453 flange gasket, one (1) 2871863 heavy-duty clamp, and one (1) 5290118 heavy-duty clamp.
- DOC Only: Includes one (1) DOC only. Service gaskets and mounting clamps are not included.
DOC Technical Specifications
| Measurement Parameter | Specification Value |
|---|---|
| Product Type | Diesel Oxidation Catalyst (DOC) Inlet Module |
| Common Search Term | DOC Filter |
| Primary OEM Part Numbers | 4353249, 1978266, A047V447 |
| Additional OEM Numbers | 4353249NX, 4353249RX, 1978266PE, 1978266PEX, 5298340, 5298340NX, 5298340RX, 5286910, 5286910NX, 5286910RX, A035E403, A041P368, A047V562 |
| Manufacturer Part Number | Skyline XN0619 |
| Engine Compatibility | Cummins ISX12, ISX15, and QSX |
| Material | Premium Stainless Steel |
| Weight | 59.54 lbs (27.03 kg) |
| Length | 12.80 inches (325.12 mm) |
| Outer Body Diameter | 13.15 inches (334.00 mm) |
| Overall Dimensions | 13.15 x 13.15 inches (334.00 x 334.00 mm) |
| Core Condition | Brand-New Aftermarket Unit |
| Core Charge | No Core Charge |
| Warranty | 3-Year Unlimited Mileage Warranty |
| Exhaust Emission Norm | EPA Compliant |
Key Features
- Direct-Fit Cummins PACCAR DOC: Replaces Cummins and PACCAR diesel oxidation catalyst applications listed in the cross-reference table above.
- No Core Charge: Brand-new aftermarket DOC with no dirty core return, core tracking paperwork, or return freight expense.
- EPA Compliant: Designed for supported Cummins ISX12, ISX15, and QSX heavy-duty diesel aftertreatment applications.
- Brand-New Unit: New aftermarket Diesel Oxidation Catalyst rather than a remanufactured core.
- Stainless Steel Construction: Built with premium stainless steel material for durability in heavy-duty exhaust systems.
- Available Full Kit: Full Kit option includes one (1) 2866337 gasket, one (1) 2871453 gasket, one (1) 2871863 clamp, and one (1) 5290118 clamp.
- Free Shipping: Free ground shipping within the continental United States. Orders placed before 2:00 PM Eastern ship out the same business day when inventory is available.
- Warranty Protection: Backed by a 3-year unlimited mileage warranty.
Signs Your DOC Needs Replacement
- Difficulty reaching or maintaining the exhaust temperatures needed for DPF regeneration.
- Frequent, incomplete, or unsuccessful regeneration cycles.
- Diagnostic trouble codes related to DOC catalyst efficiency or exhaust temperature performance.
- Excessive soot loading in the downstream DPF.
- Fuel, oil, or other contamination visible at the catalyst inlet.
- Increased exhaust backpressure or reduced engine performance.
- Physical cracking, melting, corrosion, or damage to the DOC substrate or housing.
Multi-Warehouse Dispatch
Orders ship from regional fulfillment hubs to help provide fast delivery to your repair shop or location.
*Note: Always verify exact compatibility using your vehicle's VIN number or original stamped OEM part number on the unit before placing an order.
Disclaimer: Product images are for reference only. Each selected option includes one (1) physical DOC unit. The Full Kit option includes one DOC with the listed gaskets and clamps. The DOC Only option includes one DOC only, with no gaskets or clamps included.
