Product Overview
Cummins 4396734 2880259 A030X734 Diesel Oxidation Catalyst DOC
Interchange References: 4396734, 4396734NX, 4396734RX, 2880259, 2880259NX, 2880259RX, A030X734, 4969721, 4969721NX, 4969721RX, 2888262, 2888262NX, 2888262RX, Q622230, 4965079, A029D892, A030N300, Q165486, Q620939, XN0506-FSS, C0016-ID, C20-0020, 58017, GESi-514, 2871453, 2866337, 2871863, 2880483
Restore exhaust aftertreatment performance with this premium aftermarket Cummins PACCAR Diesel Oxidation Catalyst DOC. This brand-new Skyline DOC is a direct-fit replacement for Cummins 4396734, Cummins 2880259, and Cummins assembly reference A030X734, with additional compatible OEM and PACCAR references listed in the cross-reference table below. Designed for select Cummins ISX, ISX15, and QSX 15L EPA10 aftertreatment applications, this DOC installs without exhaust system modifications, carries no core charge, is backed by a 3-year unlimited mileage warranty, and ships free within the continental United States.
Cummins PACCAR DOC Cross Reference Table
How to Verify Your Unit: Use the table below to compare the original stamped OEM part number on your DOC canister, emissions tag, or catalyst housing with compatible OEM and aftermarket interchange numbers.
| Manufacturer | Cross Reference Part Numbers |
|---|---|
| Cummins OEM | 4396734, 4396734NX, 4396734RX, 2880259, 2880259NX, 2880259RX, 4969721, 4969721NX, 4969721RX, 2888262, 2888262NX, 2888262RX, 4965079, A029D892, A030N300 |
| PACCAR OEM | Q622230, Q165486, Q620939 |
| FSS Emission Products | XN0506-FSS |
| Roadwarrior | C0016-ID |
| DuraFit | C20-0020 |
| Dinex | 58017 |
| Global Emission Systems | GESi-514 |
Cummins ISX ISX15 QSX15 DOC Fitment Guide
This Cummins PACCAR DOC is designed for select heavy-duty regional, vocational, and Class 8 commercial vehicles configured with compatible EPA10 horizontal exhaust aftertreatment systems.
- Engine Platforms: Cummins ISX, Cummins ISX15, and Cummins QSX 15L heavy-duty diesel engine applications.
- Approximate Emissions Era: Commonly associated with select EPA10 applications, approximately 2010 to 2012, depending on vehicle configuration.
- Common Chassis Applications: Select Kenworth T660, T800, T2000, W900, Peterbilt 386, 388, 389, 367, Freightliner Cascadia, Freightliner Coronado, International Navistar ProStar, International Navistar 9900i, Western Star, Volvo, and Mack configurations using the matching Cummins aftertreatment assembly.
- Compatible OEM Numbers: 4396734, 2880259, 4969721, 2888262, 4965079, Q622230, Q165486, Q620939, and related NX/RX service numbers listed above.
Compatible OEM Assembly Numbers: A030X734, 4964989, 4969649, 4969733, 4969736, 4969737, 4985348
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) 2871453 inlet gasket, one (1) 2866337 outlet gasket, one (1) 2871863 heavy-duty mounting clamp, and one (1) 2880483 exit clamp.
- DOC Only: Includes one (1) DOC only. Installation gaskets and clamps are not included.
DOC Technical Specifications
| Measurement Parameter | Specification Value |
|---|---|
| Product Type | Diesel Oxidation Catalyst (DOC) |
| Common Search Term | DOC Filter |
| Material | Premium Stainless Steel |
| Weight | 42.47 lbs (19.28 kg) |
| Length | 13.15 inches (334.00 mm) |
| Core Diameter | 13.17 inches (334.00 mm) |
| Overall Dimensions (W x H) | 13.15 x 15.16 inches (334.00 x 385.06 mm) |
| 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 ISX, ISX15, and QSX 15L aftertreatment applications.
- 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) 2871453 gasket, one (1) 2866337 gasket, one (1) 2871863 clamp, and one (1) 2880483 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
- Frequent, incomplete, or unsuccessful DPF regeneration cycles.
- Diagnostic trouble codes related to DOC catalyst efficiency or exhaust temperature performance.
- Difficulty reaching or maintaining the exhaust temperatures needed for regeneration.
- 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.
