The Selective Catalytic Reduction (SCR) filter plays a key role in managing emissions on Cummins QSB4.5 and 3.8 engines from 2018 to 2024. It works as part of the SCR system to help reduce harmful nitrogen oxides (NOx) in the exhaust, supporting cleaner emissions and helping maintain regulatory compliance. Over time, SCR filters can become worn or restricted, which can affect emissions performance and trigger fault indicators. The Cummins QSB4.5, 3.8 SCR Filter OEM 5510794 from Tamerx Diesel Parts is engineered to meet original equipment standards, making it a reliable replacement to keep your emissions system functioning as intended.
• Reduces NOx emissions by enabling the SCR system to convert nitrogen oxides into harmless
nitrogen and water vapor, supporting cleaner exhaust output and environmental compliance
• Exact match for Cummins QSB4.5 & 3.8 engines (2018–2024) ensuring proper fitment, smooth installation,
and seamless integration with the factory exhaust and SCR system
• Supports consistent exhaust flow by maintaining proper movement of gases through the SCR system,
helping downstream emissions components operate efficiently
• Built to OEM standards (5510794) offering dependable durability, consistent performance, and
compatibility with original SCR hardware
• Ideal for everyday and commercial use where reliable emissions control and efficient SCR operation
are key to long-term engine reliability
Replacing a worn or failing SCR filter with the Cummins QSB4.5, 3.8 SCR Filter OEM 5510794 from Tamerx Diesel Parts helps restore proper emissions treatment and supports the overall health of your exhaust system. Choosing an OEM-matched SCR filter ensures your engine maintains efficient emissions performance and continues running reliably across diverse driving conditions.







































