Product Overview
Cummins 4965215 2888246 A030W855 PACCAR Q621297 Diesel Oxidation Catalyst DOC
Cummins PACCAR DOC replacement: This brand-new Skyline XN0525 DOC is a direct-fit replacement for Cummins 4965215, 4965215NX, 4965215RX, 2888246, 2888246NX, 2888246RX, A030W855, and PACCAR Q621297. Additional aftermarket references include DuraFit C20-0112 and Dinex 58285.
Heavy-duty applications: Designed for select Cummins heavy-duty exhaust aftertreatment applications, including select highway fleet, regional-delivery, dump, and vocational configurations equipped with compatible Cummins engines and the matching DOC assembly.
Product details and configurations: 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. The Full Kit includes two 2871453 installation gaskets and two 2871863 heavy-duty mounting clamps.
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 | 4965215, 4965215NX, 4965215RX, 2888246, 2888246NX, 2888246RX, A030W855 |
| PACCAR OEM | Q621297 |
| Skyline | XN0525 |
| DuraFit | C20-0112 |
| Dinex | 58285 |
Cummins DOC Fitment Guide
This Cummins PACCAR DOC is designed for select heavy-duty highway, regional-delivery, dump, and vocational applications equipped with compatible Cummins exhaust aftertreatment systems.
- Engine Platforms: Select heavy-duty Cummins diesel engine applications.
- Approximate Emissions Era: Verify using the original stamped DOC number, vehicle VIN, and emissions configuration.
- Common Chassis Applications: Select highway fleet, regional-delivery, dump, and vocational configurations equipped with compatible Cummins engines and matching DOC assembly.
- Compatible OEM Numbers: 4965215, 2888246, A030W855, Q621297, and related NX/RX service numbers listed above.
Compatible OEM Assembly Numbers: 4965130
Choose Your Kit Configuration
Select the setup from the product options above that best fits your shop's needs:
DOC Technical Specifications
- Product Type
- Diesel Oxidation Catalyst (DOC)
- Common Search Term
- DOC Filter
- Primary OEM Part Numbers
- 4965215, 2888246, A030W855, Q621297
- Manufacturer Part Number
- Skyline XN0525
- Material
- Premium Stainless Steel
- Weight
- 27.77 lbs (12.70 kg)
- Length
- 13.17 inches (337 mm)
- Outer Body Diameter / Width
- 13.17 inches (337 mm)
- Height
- 8.18 inches (209 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 heavy-duty 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 two (2) 2871453 gaskets and two (2) 2871863 clamps.
- 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.
