2024 Cummins QSL9 (Tier 4 Final/Stage IV) Base

2024 Cummins QSL9 (Tier 4 Final/Stage IV)

For U.S. Environmental Protection Agency (EPA) Tier 4 Final and EU Stage IV near-zero emissions regulations taking effect in 2014, Cummins has a technology solution with clear advantages for every type of equipment.

While other manufacturers outsource their emissions aftertreatment systems, Cummins manufactures our own. This total integration of the engine and the exhaust system allows us to optimize fuel economy above the 5 percent we’ve already achieved with Tier 4 Interim engines, while achieving near-zero emissions at the same time.

Features may include:

A single, higher-capacity Electronic Control Module (ECM) controls everything from air intake to exhaust aftertreatment for peak performance. Provides seamless integration of all components to optimize engine performance.

The QSL9 uses an XPI (Xtra-High Pressure Injection) fuel system, developed by Cummins to provide more efficiency for the 400-hp heavy-duty output of the 9-liter engine. In addition to increasing power output and lowering fuel consumption, these fuel systems reduce noise and engine vibration.

These engines are equipped with Cummins Fleetguard fuel filters featuring nanotechnology-based media, designed to remove 98.7 percent of all particles as small as 4 microns, which is up to 13 times more than competing filters.

From Cummins Filtration – designed for Tier 4 installations to take less space, provide better protection and extend filter change intervals. Flat profile enables more efficient direct flow of air through the filter compared with conventional radial seal filters.

Rebalanced for Tier 4 Final, this cooled EGR system reduces demand on the engine, improving fuel efficiency and lowering cost of operation as it reduces fuel consumption and greenhouse gas emissions.