Product Overview
PACCAR Q629483 Cummins 2871583 Diesel Oxidation Catalyst DOC
PACCAR Cummins DOC replacement: This brand-new Skyline XN0630 DOC inlet module is a direct-fit replacement for PACCAR Q629483 and Cummins 2871583, 2871583NX, and 2871583RX. Additional aftermarket cross references include DuraFit C20-0116 and Dinex 58215.
Engine applications: Designed for select Cummins ISX exhaust aftertreatment applications, including select Class 8 transport, long-haul, vocational, and heavy commercial configurations using compatible Cummins aftertreatment systems.
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 one 2871453 installation gasket, one 2880215 installation gasket, one 2871863 heavy-duty clamp, and one 2880213 heavy-duty clamp.
DOC Technical Specifications
- Product Type
- Diesel Oxidation Catalyst (DOC) Inlet Module
- Common Search Term
- DOC Filter
- Primary OEM Part Numbers
- Q629483, 2871583
- Manufacturer Part Number
- Skyline XN0630
- Material
- Premium Stainless Steel
- Weight
- 59.54 lbs (27.03 kg)
- Length
- 13.37 inches (339.60 mm)
- Outer Body Diameter
- 13.27 inches (337 mm)
- Overall Dimensions
- 13.27 x 13.27 inches (337 x 337 mm)
- Core Condition
- Brand-New Aftermarket Unit
- Core Charge
- No Core Charge
- Warranty
- 3-Year Unlimited Mileage Warranty
- Exhaust Emission Norm
- EPA07 Compliant
PACCAR Cummins 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 |
|---|---|
| PACCAR OEM | Q629483 |
| Cummins OEM | 2871583, 2871583NX, 2871583RX |
| Skyline | XN0630 |
| DuraFit | C20-0116 |
| Dinex | 58215 |
How to Locate Your Stamped Part Number: Original manufacturer part numbers are commonly stamped into the metal canister body band or printed on the emissions tag attached to the catalyst shell. Always compare the stamped number on your original unit to the cross-reference numbers listed above before ordering.
Cummins ISX DOC Fitment Guide
This PACCAR Cummins DOC inlet module is designed for select Class 8 transport, long-haul, vocational, and heavy commercial applications equipped with compatible Cummins ISX exhaust aftertreatment systems.
- Engine Platforms: Select Cummins ISX heavy-duty diesel engine applications.
- Approximate Emissions Era: Commonly associated with select EPA07 applications, depending on vehicle configuration.
- Chassis Configuration: Select horizontal-chassis exhaust layouts using compatible Cummins aftertreatment systems.
- Common Chassis Applications: Select Class 8 transport, long-haul, vocational, and heavy commercial vehicles equipped with compatible Cummins ISX engines and matching DOC assembly.
- Compatible OEM Numbers: Q629483, 2871583, and related NX/RX service numbers listed above.
Choose Your Kit Configuration
Select the setup from the product options above that best fits your shop's needs:
Key Features
- Direct-Fit PACCAR Cummins DOC: Replaces PACCAR and Cummins 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.
- EPA07 Compliant: Designed for supported Cummins ISX 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) 2871453 gasket, one (1) 2880215 gasket, one (1) 2871863 clamp, and one (1) 2880213 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.
