International Navistar DOC : OEM 2596407C92

Proven DOC Replacement for International/Navistar Emissions Systems

What Is It?

The Diesel Oxidation Catalyst (DOC) OEM 2596407C92 is a direct-fit emissions system component designed to convert harmful gases—such as hydrocarbons (HC) and carbon monoxide (CO)—into less harmful substances. Installed in the exhaust stream, this unit serves as the first line of emissions control in International/Navistar diesel engines.

Why Choose OEM 2596407C92?

This DOC is built to International/Navistar’s original specifications for reliable working conditions and seamless fitment. It works in tandem with downstream diesel particulate filters (DPFs) by maintaining the required exhaust temperature and gas composition needed for effective soot management.

Key Benefits

✅ Engineered for International/Navistar Applications: Precise OEM fit with no modifications required
✅ Reduces Harmful Emissions: Oxidizes CO and HC into water vapor and CO₂
✅ Supports Downstream Components: Optimizes exhaust flow and temperature for DPF functionality
✅ High Thermal Durability: Withstands demanding regen cycles and harsh operating conditions
✅ Sensor-Compatible: Accepts factory-installed pressure and temperature sensors

Applications

This DOC is commonly used in International/Navistar medium- and heavy-duty diesel trucks, buses, and vocational vehicles. It’s designed to meet the needs of operators in regulated environments requiring consistent and dependable emissions control.

Installation Notes

Installation should be completed by a qualified technician. Inspect all mating surfaces, sensor ports, and exhaust clamps. After installation, use diagnostic tools to reset DOC-related ECM parameters and confirm system readiness. Perform a regeneration cycle if required.

Final Thoughts

The OEM 2596407C92 DOC is a critical component for restoring and maintaining the emissions integrity of International/Navistar diesel vehicles. With its OEM-level reliability and seamless fit, it ensures your fleet stays compliant and operational without emissions-related interruptions.