Product Overview
PACCAR Q629439 Cummins 5287476 2871518 A035H261 DOC Diesel Oxidation Catalyst
Interchange References: PACCAR Q629439, Cummins 5287476, 5287476NX, 2871518, 2871518NX, A035H261, Skyline BG0410, FSS Emission Products BG0410-FSS, DuraFit C20-0154, Dinex 58286
Replace a worn or damaged PACCAR Q629439, Cummins 5287476, 2871518, or A035H261 DOC Diesel Oxidation Catalyst with this brand-new Skyline aftermarket DOC. This catalyst also cross-references Cummins service numbers 5287476NX and 2871518NX. It is intended for select Cummins ISB 6.7L and PACCAR PX-6 6.7L diesel engine applications equipped with compatible EPA10 exhaust aftertreatment systems. The Full Kit includes one 2871451 installation gasket, one 2866636 installation gasket, one 2871861 heavy-duty clamp, and one 2880482 heavy-duty clamp. This Diesel Oxidation Catalyst has no core charge, includes a 3-year unlimited mileage warranty, is EPA compliant, and ships free within the continental United States.
PACCAR and Cummins DOC Cross References
PACCAR Q629439 and Cummins 5287476, 2871518, and A035H261 DOC catalysts cross-reference with Skyline BG0410 and the additional OEM service and aftermarket replacement numbers listed below.
| Manufacturer | Cross Reference Part Numbers |
|---|---|
| PACCAR OEM | Q629439 |
| Cummins OEM | 5287476, 5287476NX, 2871518, 2871518NX, A035H261 |
| Skyline | BG0410 |
| FSS Emission Products | BG0410-FSS |
| DuraFit | C20-0154 |
| Dinex | 58286 |
Cummins ISB 6.7L and PACCAR PX-6 DOC Compatibility
This Skyline DOC is intended for select Cummins ISB 6.7L and PACCAR PX-6 6.7L commercial diesel engine applications equipped with compatible EPA10 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 ISB 6.7L and PACCAR PX-6 6.7L applications
- Emissions Standard: Select EPA10 exhaust aftertreatment applications
- Full Kit Gaskets: One 2871451 gasket and one 2866636 gasket
- Full Kit Clamps: One 2871861 clamp and one 2880482 clamp
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, one (1) 2871451 installation gasket, one (1) 2866636 installation gasket, one (1) 2871861 heavy-duty clamp, and one (1) 2880482 heavy-duty clamp.
- DOC Only: Includes one (1) Diesel Oxidation Catalyst only. Installation gaskets and clamps are not included.
DOC Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Diesel Oxidation Catalyst |
| Engine Compatibility | Select Cummins ISB 6.7L and PACCAR PX-6 6.7L applications |
| Overall Length | 10.62 in (270.00 mm) |
| Outer Body Diameter | 10.62 in (270.00 mm) |
| Overall Height | 17.40 in (454.00 mm) |
| Weight | 30.62 lb (13.80 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 | EPA10 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
- EPA10 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, one 2871451 installation gasket, one 2866636 installation gasket, one 2871861 heavy-duty clamp, and one 2880482 heavy-duty clamp. The DOC Only option includes one DOC only, with no installation gaskets or clamps included.
