Product Overview
PACCAR 1950000 A045X394 Diesel Oxidation Catalyst DOC
PACCAR DOC replacement: Replace a worn or damaged PACCAR 1950000 or A045X394 Diesel Oxidation Catalyst DOC with this brand-new Skyline MN0603 aftermarket DOC filter. This direct-fit replacement also cross-references PACCAR 1950000PE and 1950000PEX, with DuraFit C20-0164 as an additional aftermarket reference.
Engine applications: This DOC 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.
Product details and 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. The Full Kit includes one 1818631PE installation gasket, one 1844253PE installation gasket, one 1912710PE heavy-duty clamp, and one 5290018 heavy-duty clamp.
PACCAR DOC Cross References
PACCAR 1950000 and A045X394 DOC filters cross-reference with PACCAR 1950000PE and 1950000PEX, Skyline MN0603, and DuraFit C20-0164.
| Manufacturer | Cross Reference Part Numbers |
|---|---|
| PACCAR OEM | 1950000, 1950000PE, 1950000PEX, A045X394 |
| Skyline | MN0603 |
| 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.
DOC Technical Specifications
- 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.
