Product Overview
Cummins 5287496 4965284 A035H295 PACCAR Q621275 DOC Filter
Interchange References: Cummins 5287496, 5287496NX, 5287496RX, 4965284, 4965284NX, A035H295, PACCAR Q621275, Skyline CJ0401, FSS Emission Products CJ0401-FSS, DuraFit C20-0002, Roadwarrior C0005-ID, Global Emission Systems GESi-501, Dinex 58023
Replace a worn or damaged Cummins 5287496, 4965284, A035H295, or PACCAR Q621275 DOC Filter with this brand-new Skyline aftermarket Diesel Oxidation Catalyst. This DOC also cross-references Cummins service numbers 5287496NX, 5287496RX, and 4965284NX. It is intended for select Cummins ISC and PACCAR PX-8 diesel engine applications equipped with compatible EPA07 exhaust aftertreatment systems. The Full Kit includes two 2871452 installation gaskets and two 2871862 heavy-duty clamps. This DOC has no core charge, includes a 3-year unlimited mileage warranty, is EPA compliant, and ships free within the continental United States.
Cummins and PACCAR DOC Cross References
Cummins 5287496, Cummins 4965284, and PACCAR Q621275 DOC filters cross-reference with Skyline CJ0401 and the additional OEM, service, assembly, and aftermarket replacement numbers listed below.
| Manufacturer | Cross Reference Part Numbers |
|---|---|
| Cummins OEM | 5287496, 5287496NX, 5287496RX, 4965284, 4965284NX, A035H295 |
| PACCAR OEM | Q621275 |
| Skyline | CJ0401 |
| FSS Emission Products | CJ0401-FSS |
| DuraFit | C20-0002 |
| Roadwarrior | C0005-ID |
| Global Emission Systems | GESi-501 |
| Dinex | 58023 |
Cummins ISC PACCAR PX-8 DOC Engine Compatibility
This Skyline DOC is intended for select Cummins- and PACCAR-powered commercial applications equipped with compatible EPA07 exhaust aftertreatment systems. Exact compatibility varies by engine configuration, emissions family, model year, chassis, exhaust layout, aftertreatment assembly, and the original stamped DOC part number.
- Engine Platforms: Select Cummins ISC and PACCAR PX-8 applications
- Approximate Model Years: Select 2007–2009 applications
- Emissions Standard: Select EPA07 exhaust aftertreatment applications
- Full Kit Gaskets: Two 2871452 gaskets
- Full Kit Clamps: Two 2871862 clamps
Choose the Setup That Fits Your Shop’s Needs
Select the configuration from the product options that best fits your installation needs.
- Full Kit (Best Value): Includes one (1) brand-new DOC unit, two (2) 2871452 installation gaskets, and two (2) 2871862 heavy-duty clamps
- DOC Only: Includes one (1) Diesel Oxidation Catalyst only. Installation gaskets and clamps are not included
DOC Technical Specifications
| Measurement Parameter | Specification Value |
|---|---|
| Product Type | Diesel Oxidation Catalyst |
| Engine Compatibility | Select Cummins ISC and PACCAR PX-8 applications |
| Overall Length | 7.48 in (189.99 mm) |
| Outer Body Diameter | 11.67 in (296.50 mm) |
| Weight | 23.81 lb (10.80 kg) |
| Housing Material | Stainless steel |
| Included Installation Hardware | Full Kit includes two installation gaskets and two heavy-duty clamps |
| Core Condition | Brand-new aftermarket unit |
| Core Charge | No core charge |
| Warranty | 3-year unlimited mileage warranty |
| Emissions Standard | EPA07 compliant |
Key Features
- Brand-new Skyline aftermarket DOC Diesel Oxidation Catalyst
- Full Kit includes two installation gaskets and two heavy-duty clamps
- DOC Only configuration available without installation hardware
- No core charge or used catalyst return required
- Stainless steel housing construction
- EPA07 compliant for applicable federal emissions applications outside California
- Ships free within the continental United States
- Backed by a 3-year unlimited mileage warranty
Signs Your DOC May Need Inspection or Replacement
- Frequent, incomplete, or unsuccessful DPF regeneration cycles
- DOC efficiency or catalyst-conversion diagnostic trouble codes
- Slow exhaust-temperature increase during an active regeneration
- Excessive soot, oil, fuel, or ash contamination on the catalyst face
- High exhaust backpressure or abnormal pressure readings
- Reduced engine performance under load
- Cracking, melting, corrosion, or other physical catalyst damage
These symptoms may have multiple causes. Diagnose the complete engine, fuel, turbocharger, sensor, and exhaust aftertreatment systems before replacing the DOC.
*Note: Always verify exact compatibility using the vehicle VIN, emissions-family label, aftertreatment assembly information, and the original stamped OEM part number on the DOC before ordering.
Disclaimer: Product images are for reference only. Each selected configuration includes one (1) physical DOC unit. The Full Kit option includes one DOC, two 2871452 installation gaskets, and two 2871862 heavy-duty clamps. The DOC Only option includes one DOC only, with no installation gaskets or clamps included.
