Cummins QSF3.8 (TIER 4 FINAL/STAGE IV)

74 – 130 horsepower, 55 - 97 kW, 376 - 488 N•m,  277 - 360 lb-ft, Tier 4 Final / Stage IV

Applications- Agriculture, Construction, Mining Engines, Oil and Gas Engines, Rail Engines, Well Servicing

From 100-130 hp, the QSF3.8 is paired with a Diesel Oxidation Catalyst and Selective Catalytic Reduction (DOC-SCR) system designed by Cummins Emission Solutions (CES). Cummins SCR enables oxides of nitrogen (NOx) conversion to take place at lower exhaust temperatures. CES has manufactured over 1 million SCR systems – and has more experience with this technology than any other company. The Cummins SCR system features a decomposition tube designed to enable more effective mixing of the Diesel Exhaust Fluid (DEF) ahead of the catalyst. Additionally, for certain applications, the QSF3.8 can be paired with an SCR-only aftertreatment system.