Product Overview
PACCAR 1950000 A045X394 Diesel Oxidation Catalyst DOC
Interchange References: PACCAR 1950000, 1950000PE, 1950000PEX, A045X394, Skyline MN0603, FSS Emission Products MN0603-FSS, DuraFit C20-0164
Replace a worn or damaged PACCAR 1950000 or A045X394 Diesel Oxidation Catalyst DOC with this brand-new Skyline aftermarket DOC filter. This direct-fit replacement also cross-references PACCAR 1950000PE and 1950000PEX and is intended for select PACCAR MX-11 and MX-13 diesel engine applications using compatible 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 1950000 and A045X394 DOC filters cross-reference with PACCAR 1950000PE and 1950000PEX, Skyline MN0603, FSS Emission Products MN0603-FSS, and DuraFit C20-0164.
| Manufacturer | Cross Reference Part Numbers |
|---|---|
| PACCAR OEM | 1950000, 1950000PE, 1950000PEX, A045X394 |
| Skyline | MN0603 |
| FSS Emission Products | MN0603-FSS |
| DuraFit | C20-0164 |
PACCAR MX-11 MX-13 DOC Fitment Guide
This Skyline DOC filter is intended for select heavy-duty diesel applications equipped with compatible PACCAR MX-11 or MX-13 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 Platforms: Select PACCAR MX-11 and PACCAR MX-13 diesel engines
- Approximate Model Years: Select 2013–2016 applications
- Common Kenworth Applications: Select compatible highway, line-haul, vocational, and heavy-duty commercial chassis configurations
- Common Peterbilt Applications: Select compatible conventional, vocational, and heavy-transport chassis configurations
- Compatible OEM Numbers: 1950000, 1950000PE, 1950000PEX, and A045X394
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) 1818631PE installation gasket, one (1) 1844253PE installation gasket, one (1) 1912710PE heavy-duty clamp, and one (1) 5290018 heavy-duty clamp
- DOC Only: Includes one (1) DOC only. Gaskets and clamps are not included
DOC Technical Specifications
| Measurement Parameter | Specification Value |
|---|---|
| Product Type | Diesel Oxidation Catalyst DOC inlet module |
| Common Search Terms | DOC, DOC Filter, Diesel Oxidation Catalyst |
| Primary OEM Part Numbers | 1950000, A045X394 |
| Manufacturer Part Number | Skyline MN0603 |
| Engine Compatibility | Select PACCAR MX-11 and MX-13 applications |
| Core Condition | Brand-new aftermarket unit |
| Core Charge | No core charge |
| Warranty | 3-year unlimited mileage warranty |
| Emissions Compliance | EPA compliant |
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
- EPA compliant for applicable federal emissions applications outside California
- Available Full Kit with 1818631PE and 1844253PE gaskets and 1912710PE and 5290018 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
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.
