Tier 4 Final Engine
The PC490LC-11 leverages Komatsu engine technology to provide a productive, dependable and efficient Tier 4 Final emissions certified machine that does not interfere with daily operation. An enhanced Power Mode provides improved hydraulic flow, reduced cycle time and better productivity than the previous model it replaces. The PC490LC-11 is ideally sized for high production earthmoving applications while be easily transportable.
New Tier 4 Final Engine:
The Komatsu SAA6D125E-7 engine is EPA Tier 4 Final emissions certified and provides exceptional performance while reducing fuel consumption. Based on Komatsu proprietary technologies developed over many years, this new diesel engine reduces nitrogen oxides (NOx) by more than 80% when compared to Tier 4 interim levels. Through the in-house development and production of engines, electronics, and hydraulic components, Komatsu has achieved great advancements in technology, providing high levels of performance and efficiency in virtually all applications.
Heavy-duty after-treatment system: This new system combines a Komatsu Diesel Particulate Filter (KDPF) and Selective Catalytic Reduction (SCR). The SCR NOx reduction system injects the correct amount of Diesel Exhaust Fluid (DEF) at the proper rate, thereby decomposing NOx into non-toxic water vapor (H2O) and nitrogen gas (N2).