Cummins ISX SCR
(ENV-SCR-C0171SC)

The ENV-SCR-C0171SC Cummins ISX SCR (Selective Catalytic Reduction) is a heavy-duty after-treatment component designed for Cummins ISX diesel engines. It plays a key role in reducing harmful NOx emissions by injecting Diesel Exhaust Fluid (DEF) into the exhaust stream, where it converts pollutants into harmless nitrogen and water vapor through a catalytic reaction.
Built to OEM standards, this SCR unit ensures efficient emission control, improved fuel economy, and compliance with modern environmental regulations. It is engineered for long-haul and high-load trucking applications, delivering strong durability under extreme exhaust temperatures and continuous operation. Designed for precise fitment and long service life, it is a reliable replacement part for maintaining optimal performance of Cummins ISX after-treatment systems.