Diesel engines depend on advanced emissions components to reduce harmful exhaust pollutants, and the International Navistar MaxxForce 13 DOC Filter (2011–2014, OEM 5010812R91) plays a crucial part in that process. The Diesel Oxidation Catalyst (DOC) filter helps convert carbon monoxide and unburned hydrocarbons into less harmful gases before they move through the rest of the exhaust system. Choosing the correct OEM-grade DOC filter ensures your engine’s aftertreatment system functions effectively, supporting cleaner operation and long-term reliability.
This DOC filter impacts your engine’s emissions system — here’s why it matters:
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Improves Exhaust Emissions – Helps transform carbon monoxide and hydrocarbons into safer exhaust gases, contributing to cleaner overall emissions.
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Supports Downstream Emissions Components – By reducing pollutant load early in the exhaust stream, the DOC filter helps the rest of the emissions system (like SCR or particulate filters) work more efficiently.
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Helps Maintain Emissions Compliance – Installing the proper DOC filter helps ensure your engine continues to meet emissions standards without triggering warnings or performance restrictions.
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OEM-Grade Fit and Durability – As OEM 5010812R91, this filter matches original manufacturer specifications for size, materials, and performance, ensuring dependable long-term operation.
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Prevents Exhaust System Issues – Replacing a worn or clogged DOC filter can help reduce backpressure, improve throttle response, and support smoother exhaust flow.
A worn or restricted DOC filter can lead to reduced emissions performance, increased exhaust issues, or system warnings. The International Navistar MaxxForce 13 DOC Filter (OEM 5010812R91) delivers the OEM-standard quality and emissions support your engine depends on — helping keep your diesel running cleaner and more efficiently. For customers seeking a reliable replacement part, Tamerx offers high-quality components designed to maintain emissions performance and dependable engine health.












