Product Overview
International Navistar 2606987C91 3817962C91 Diesel Oxidation Catalyst DOC
Interchange References: International/Navistar 2606987C91, master assembly 3817962C91, Skyline MN0401, MN0401-M, MN0401-C, Redline Emissions Products 58817, REP 58817, Roadwarrior C0017-ID, Dinex 58039, DuraFit C20-0017, Global Emission Systems GESi-516
Replace a worn or damaged International/Navistar 2606987C91 Diesel Oxidation Catalyst DOC associated with select 3817962C91 aftertreatment assemblies with this brand-new Skyline aftermarket DOC filter. This direct-fit replacement is intended for select International/Navistar MaxxForce DT, MaxxForce 9, and MaxxForce 10 diesel engine applications using compatible exhaust aftertreatment systems. The Full Kit includes one 2368086 gasket, one 21371340 gasket, one 2607045C1 clamp, and one 5290118 clamp. This DOC has no core charge, includes a 3-year unlimited mileage warranty, is EPA compliant, and ships free within the continental United States.
International Navistar DOC Cross References
International/Navistar 2606987C91 DOC inlet modules associated with select 3817962C91 aftertreatment assemblies cross-reference with Skyline MN0401 and the additional aftermarket replacement numbers listed below.
| Manufacturer | Cross Reference Part Numbers |
|---|---|
| International/Navistar OEM | 2606987C91 |
| Master Assembly Reference | 3817962C91 |
| Skyline | MN0401, MN0401-M, MN0401-C |
| Redline Emissions Products | 58817, REP 58817 |
| Roadwarrior | C0017-ID |
| Dinex | 58039 |
| DuraFit | C20-0017 |
| Global Emission Systems | GESi-516 |
International MaxxForce DOC Engine Compatibility & Fitment Guide
This Skyline DOC is intended for select International/Navistar commercial diesel applications equipped with compatible MaxxForce exhaust aftertreatment systems. Exact compatibility varies by engine calibration, emissions family, model year, chassis configuration, exhaust layout, master assembly number, and the original stamped DOC component number.
- Engine Platforms: Select International/Navistar MaxxForce DT, MaxxForce 9, and MaxxForce 10 diesel engine applications
- Approximate Model Years: Select 2010–2012 applications
- Common Applications: Select medium-duty truck, vocational, regional delivery, school bus, municipal, transit, and commercial fleet configurations
- DOC Component Number: 2606987C91
- Associated Master Assembly Reference: 3817962C91
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) 2368086 installation gasket, one (1) 21371340 outlet gasket, one (1) 2607045C1 mounting clamp, and one (1) 5290118 hardware 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 inlet module |
| Common Search Terms | DOC, DOC Filter, Diesel Oxidation Catalyst, DOC Inlet Module |
| Primary OEM Part Number | International/Navistar 2606987C91 |
| Master Assembly Reference | International/Navistar 3817962C91 |
| Manufacturer Part Numbers | Skyline MN0401, MN0401-M, MN0401-C |
| Engine Compatibility | Select MaxxForce DT, MaxxForce 9, and MaxxForce 10 applications |
| Full Kit Hardware | One 2368086 gasket, one 21371340 gasket, one 2607045C1 clamp, and one 5290118 clamp |
| 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 International/Navistar application
- 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 the listed installation gaskets and 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 and the original stamped DOC component number before placing an order. A master assembly number alone may not confirm the individual DOC component.
Disclaimer: Product images are for reference only. Each selected option includes one (1) physical DOC unit. The Full Kit option includes one DOC with one 2368086 gasket, one 21371340 gasket, one 2607045C1 clamp, and one 5290118 clamp. The DOC Only option includes one DOC only, with no gaskets or clamps included.
