The Selective Catalytic Reduction (SCR) filter is a key emissions component on Cummins X15 and QSX15 engines from 2011 to 2020, playing a major role in reducing harmful nitrogen oxide (NOx) emissions and supporting cleaner exhaust output. As part of the SCR system, the SCR filter helps convert NOx into harmless nitrogen and water vapor, aiding regulatory compliance and protecting downstream aftertreatment components. Over time, this filter can become worn or restricted, leading to reduced emissions performance and potential system fault indicators. The Cummins X15, QSX15 SCR Filter OEM 4376754 from Tamerx Diesel Parts is engineered to meet original equipment standards, offering a reliable replacement to help keep your emissions system performing as intended.
• Reduces NOx emissions effectively by enabling the SCR system to convert nitrogen oxides into harmless
nitrogen and water vapor, contributing to cleaner exhaust output and better emissions performance
• Designed for Cummins X15 & QSX15 engines (2011–2020) ensuring proper fitment, correct installation,
and seamless integration with the factory exhaust and SCR system
• Supports steady exhaust flow by maintaining proper movement of exhaust gases through the SCR system,
helping downstream aftertreatment components operate efficiently
• OEM-grade construction (4376754) providing dependable durability, consistent performance, and full
compatibility with original SCR system hardware
• Ideal for highway and heavy-duty use where sustained emissions control and reliable SCR operation are
important for long-term engine reliability
Replacing a worn or failing SCR filter with the Cummins X15, QSX15 SCR Filter OEM 4376754 from Tamerx Diesel Parts helps restore proper emissions treatment and supports the overall health of your exhaust system. Choosing a high-quality, OEM-matched SCR filter ensures your engine maintains efficient emissions performance and continues running reliably under varied operating conditions.











































