PACCAR MX-13 1912726, 1949999, 1978265, A047V565 DOC Inlet Catalyst Replacementt Kit

PACCAR 1912726 1949999 1978265 A047V565 DOC

Interchange References: PACCAR 1912726, 1912726PE, 1912726PEX, 1949999, 1949999PE, 1949999PEX, 1978265, 1978265PE, 1978265PEX, A047V565, A045X392, Skyline MN0608, FSS Emission Products MN0608-FSS, Roadwarrior C0163-ID, Dinex 58079, Global Emission Systems GESi-560

Replace a worn or damaged PACCAR 1912726, 1949999, 1978265, or A047V565 Diesel Oxidation Catalyst DOC with this brand-new Skyline aftermarket DOC filter. This direct-fit replacement also cross-references PACCAR A045X392 and the listed PE and PEX service-number variants. It is intended for select PACCAR MX-13 diesel engine applications using compatible EPA13 exhaust aftertreatment systems, including select Kenworth and Peterbilt highway, vocational, and heavy-duty commercial chassis configurations. This DOC has no core charge, includes a 3-year unlimited mileage warranty, is EPA compliant, and ships free within the continental United States.

PACCAR DOC Cross References

PACCAR 1912726, 1949999, 1978265, and A047V565 DOC filters cross-reference with PACCAR A045X392, Skyline MN0608, and the additional aftermarket replacement numbers listed below.

PACCAR MX-13 DOC Engine Compatibility & Fitment Guide

This Skyline DOC filter is intended for select heavy-duty diesel applications equipped with compatible PACCAR MX-13 EPA13 exhaust aftertreatment systems. Exact compatibility varies by engine calibration, emissions family, model year, chassis configuration, exhaust layout, and the original stamped DOC part number.

• Engine Platform: Select PACCAR MX-13 12.9L diesel engine applications
• Approximate Model Years: Select 2013–2016 applications
• Approximate Emissions Era: EPA13 exhaust aftertreatment applications
• Common Kenworth Applications: Select compatible highway, line-haul, vocational, and severe-duty configurations
• Common Peterbilt Applications: Select compatible conventional, vocational, and heavy-transport configurations
• Compatible OEM Numbers: 1912726, 1912726PE, 1912726PEX, 1949999, 1949999PE, 1949999PEX, 1978265, 1978265PE, 1978265PEX, A047V565, and A045X392

Choose Your Kit Configuration

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) 2871453 installation gasket, one (1) 2866337 installation gasket, one (1) 2871863 heavy-duty clamp, and one (1) 5290118 heavy-duty clamp
• DOC Only: Includes one (1) DOC only. Gaskets and clamps are not included

DOC Technical Specifications

Key Features

• Direct-fit replacement for the listed PACCAR OEM applications
• Brand-new Skyline aftermarket Diesel Oxidation Catalyst DOC
• No core charge or used catalyst return required
• Stainless steel construction
• EPA compliant for applicable federal emissions applications outside California
• Available Full Kit with 2871453 and 2866337 gaskets and 2871863 and 5290118 clamps
• Ships free within the continental United States
• Backed by a 3-year unlimited mileage warranty

Signs Your DOC Needs Replacement

• Difficulty reaching or maintaining exhaust temperatures needed for DPF regeneration
• Frequent, incomplete, or unsuccessful regeneration cycles
• Diagnostic trouble codes related to DOC catalyst efficiency or exhaust temperature response
• Excessive soot loading in the downstream DPF
• Fuel, oil, or other contamination visible at the catalyst inlet
• Increased exhaust backpressure or reduced engine performance
• Cracking, melting, corrosion, or other physical damage to the catalyst substrate or housing

*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.