Product Overview
Cummins PACCAR 2871923 2871469 Diesel Oxidation Catalyst DOC
Interchange References: 2871923, 2871923NX, 2871923RX, 2871469, 2871469NX, 2871469RX, 2871773, 2871773NX, A029B190, Q629735, Q629360, CJ0405, C0137-ID, C20-0011, 58059, GESi-509, 2871452, 2866636, 2871862, 2880482
Restore exhaust aftertreatment performance with this premium aftermarket Cummins PACCAR Diesel Oxidation Catalyst DOC. This brand-new Skyline DOC inlet module is a direct-fit replacement for Cummins 2871923, Cummins 2871469, PACCAR Q629735, PACCAR Q629360, and 2871773, with additional compatible Cummins, PACCAR, and aftermarket cross-reference numbers listed in the table below. Designed for select Cummins ISC 8.3, Cummins ISL 9, and PACCAR PX8 heavy-duty diesel 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 PACCAR 2871923 2871469 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 | 2871923, 2871923NX, 2871923RX, 2871469, 2871469NX, 2871469RX, 2871773, 2871773NX, A029B190 |
| PACCAR OEM | Q629735, Q629360 |
| Skyline | CJ0405 |
| Roadwarrior | C0137-ID |
| DuraFit | C20-0011 |
| Dinex | 58059 |
| Global Emission Systems | GESi-509 |
Cummins ISC ISL PACCAR PX8 DOC Fitment Guide
This Cummins PACCAR DOC inlet module is designed for select medium-duty, heavy-duty, regional transport, vocational, delivery truck, and bus fleet applications equipped with compatible Cummins ISC 8.3, Cummins ISL 9, or PACCAR PX8 exhaust aftertreatment systems.
- Engine Platforms: Select Cummins ISC 8.3, Cummins ISL 9, and PACCAR PX8 diesel applications.
- Approximate Emissions Era: Commonly associated with select 2010 to 2012 applications, depending on vehicle configuration.
- Common Chassis Applications: Select medium-duty and heavy-duty regional transport, vocational truck, distribution delivery, and bus fleet platforms using the matching DOC assembly.
- Compatible Cummins Numbers: 2871923, 2871923NX, 2871923RX, 2871469, 2871469NX, 2871469RX, 2871773, 2871773NX, and A029B190.
- Compatible PACCAR Numbers: Q629735 and Q629360.
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) 2871452 installation gasket, one (1) 2866636 installation gasket, one (1) 2871862 heavy-duty clamp, and one (1) 2880482 heavy-duty 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) Inlet Module |
| Common Search Term | DOC Filter |
| Primary OEM Part Numbers | 2871923, 2871469, Q629735 |
| Manufacturer Part Number | Skyline CJ0405 |
| Engine Compatibility | Cummins ISC 8.3, Cummins ISL 9, and PACCAR PX8 |
| Material | Premium Stainless Steel |
| 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 ISC 8.3, Cummins ISL 9, and PACCAR PX8 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) 2871452 gasket, one (1) 2866636 gasket, one (1) 2871862 clamp, and one (1) 2880482 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.
