Product Overview
Aftermarket DOC Replacement for PACCAR 1912726 / 1949999 / 1978265 / A047V565 DOC Filter
Interchangeable Component Configurations: 1912726 | 1949999 | 1978265 | A047V565 | A045X392
Restore commercial fleet emissions performance with this premium aftermarket PACCAR 1912726 / 1949999 / 1978265 / A047V565 Diesel Oxidation Catalyst (DOC) Inlet Module Replacement Kit. This brand-new flow-through Diesel Oxidation Catalyst (DOC) functions as a direct-fit alternative to high-traffic OEM numbers 1912726, 1912726PE, 1912726PEX, 1949999, 1949999PE, 1949999PEX, A045X392, 1978265, 1978265PE, 1978265PEX, and A047V565. Engineered as a genuine OE manufactured component replacement for heavy-duty EPA13 emissions modules running the PACCAR MX-13 engine platform, it requires no exhaust system modifications for installation, carries zero core charge, and ships free within the continental United States.
Cross-References for PACCAR 1912726
Instant Fitment Verification: This direct-fit replacement diesel oxidation catalyst replaces components stamped with housing part numbers, casting codes, or tag profiles matching any of the interchangeable manufacturing references listed below:
| Manufacturer | Cross Reference Part Numbers |
|---|---|
| PACCAR | 1912726, 1912726PE, 1912726PEX, 1949999, 1949999PE, 1949999PEX, A045X392, 1978265, 1978265PE, 1978265PEX, A047V565 |
| Roadwarrior | C0163-ID |
| Dinex | 58079 |
| Global Emission Systems | GESi-560 |
| FSS Emission Products | MN0608-FSS |
Choose the Setup That Fits Your Shop’s Needs
Select the setup from the product options above that best fits your shop's needs:
- Full Kit (Best Value): Includes (1) Brand-New Oxidation Catalyst, (1) 2871453 inlet gasket, (1) 2866337 outlet gasket, (1) 2871863 heavy-duty mounting clamp, and (1) 5290118 heavy-duty exit clamp.
- Component Only: Includes the replacement oxidation module core only. Service gaskets and mounting clamps are not included.
TECHNICAL SPECIFICATIONS
| Measurement Parameter | Specification Value |
|---|---|
| Material Base Construction | Premium Stainless Steel |
| Net Assembly Weight | Calculated Assembly Weight |
| Exhaust Emissions Norm | EPA13 Compliant |
Key Features
- Proudly Built in the USA: Designed, engineered, and manufactured in America.
- EPA Compliant: Meets federal emission standard regulations for heavy-duty vehicle particulate reduction and hydrocarbon oxidation criteria nationwide.
- No Core Charge: Brand-new component; completely eliminates dirty core returns, core log documentation tracking, and core bank delays.
- Exact-Fit™ Design: Engineered as a genuine OE manufactured component alternative; built with matching inlet/outlet outer diameters, pre-machined sensor ports, and specialized body hanger brackets for zero exhaust system modifications.
- Substrate Performance Matrix: Advanced flow-through catalyst core uses verified washcoat metal loading to sustain exhaust temperature control and lower backpressure limits.
- Fast Free Shipping: Free ground freight within the continental United States. Orders confirmed before 2:00 PM Eastern ship out the same business day.
- Warranty Protection: Supported by a comprehensive 3-year unlimited mileage coverage profile.
Engine Compatibility & Fitment Guide
Direct alternative replacement solution for commercial transportation and vocational architectures running the PACCAR MX-13 powertrain platform under approximate model years 2013 to 2016. Optimized for:
- Engine Platforms: PACCAR MX-13 (12.9L Inline-6 Heavy-Duty Diesel).
- PACCAR Applications: Heavy-duty commercial over-the-road transport layouts and severe-duty vocational tractor classes operating the MX-13 hardware platform.
Frequently Asked Questions
Is there a core charge for this aftermarket emissions unit?
No, this is a 100% brand-new aftermarket component. Unlike remanufactured factory units, there is absolutely zero core charge, zero tracking paperwork required, and no need to spend money shipping your old, dirty unit back to us.
Does this replacement unit come with the necessary clamps and gaskets?
When you select the "Full Kit" option from the dropdown on this page, all exact-fit installation gaskets (2871453 / 2866337) and heavy-duty alignment clamps (2871863 / 5290118) required for a complete exhaust installation are bundled and shipped directly with the assembly. Selecting the component-only option provides the bare unit without hardware.
How fast will my order ship out?
Orders confirmed before 2:00 PM Eastern standard time ship out from our closest regional fulfillment hub on the exact same business day. Free standard ground shipping is included to the continental United States, and expedited overnight air choices can be selected directly at checkout.
How do I verify this aftermarket filter matches my truck's setup?
You can verify fitment by identifying the original casting, housing, or tag stamp directly on your factory exhaust unit canister shell. If that number matches any of the cross-references listed on this page, or if your engine model and year line up with our application guide, it will bolt directly in with a perfect factory alignment.
SIGNS YOUR DIESEL OXIDATION CATALYST (DOC) NEEDS REPLACEMENT
- Unprompted dashboard diagnostic trouble codes (DTCs) pointing directly to poor catalytic conversion efficiencies or upstream temperature sensor faults.
- Excessive HC (hydrocarbon) mask face-plugging, raw diesel washing, or heavy carbon scaling across the internal honeycomb channels.
- Unexplained commercial engine backpressure spikes or noticeable horsepower deterioration under loaded trailer pulls.
- Inability of downstream DPF filter components to achieve full regeneration temperatures due to inadequate heat generation across the catalyst cell assembly.
*Note: Always verify exact vehicle compatibility using your vehicle's VIN number, emissions family descriptor tag, or the original stamped OEM part number on your catalyst module casing before placing an order.
Disclaimer: Product images are for reference only. Final replacement hardware items matching OEM parameters such as gaskets, clamps, and sensor ports depend on your kit configuration. Selecting the "Full Kit" option adds the explicitly listed installation components to your shipment. Price is for (1) DOC assembly. Inventory levels are subject to local availability updates.
