Modern diesel trucks depend on advanced exhaust aftertreatment systems to manage harmful emissions and comply with environmental regulations. The International N13 SCR 2018–2021: OEM 5418492 is a Selective Catalytic Reduction (SCR) component designed to reduce nitrogen oxide (NOx) emissions produced during diesel combustion. Working within the exhaust system, this SCR unit uses diesel exhaust fluid (DEF) to convert harmful gases into safer compounds before they exit the vehicle.
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Designed for International N13 engines from 2018 to 2021, the OEM 5418492 SCR integrates directly into the factory emission aftertreatment system for proper installation.
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The SCR system operates by injecting diesel exhaust fluid (DEF) into the exhaust stream where it reacts with nitrogen oxides and converts them into nitrogen and water vapor.
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This chemical process helps significantly reduce NOx emissions, which are closely regulated in modern diesel vehicles.
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A properly functioning OEM 5418492 SCR assembly supports balanced exhaust chemistry and stable emission system performance.
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Accurate SCR operation ensures proper DEF dosing, which is essential for effective emission reduction and smooth exhaust flow.
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Installing the correct OEM SCR component helps prevent emission system warning lights and diagnostic trouble codes.
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Built to meet original equipment specifications, the SCR catalyst structure is designed to withstand high exhaust temperatures and demanding operating conditions.
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Replacing a worn or restricted SCR unit can help restore proper aftertreatment performance and maintain emission compliance.
Choosing the International N13 SCR 2018–2021: OEM 5418492 from Tamerx Diesel Parts ensures your truck’s emission system is equipped with a component designed for reliable operation. With the correct SCR unit installed, your engine can maintain cleaner exhaust output and dependable emission control for everyday driving.






