Komatsu plans to introduce the PC158USLC-12 and PC158USLCi-12 excavators in late 2026, expanding its next-generation -12 excavator lineup with a compact, tight tail-swing model designed for efficiency and an enhanced operator environment. These excavators build on the legacy of Komatsu's PC138USLC-11, and the PC158USLCi-12 will be Komatsu's first tight-tail excavator with the latest factory-integrated machine control, IMC 3.0.
The design of the PC158USLC-12 and PC158USLCi-12 is tailored to the North American market, with an emphasis on enhancing productivity, increasing lift capacity, and improving hydraulic attachment flow while reducing fuel consumption — all within a footprint that is easily transportable from site to site.
Designed for contractors working in space-constrained job sites — such as urban construction, utilities, and roadwork — these excavators are built to help operators work more confidently while maintaining control over grade, boundary restrictions, and attachment performance. They reflect Komatsu's continued focus on integrating technology and an operator-centered design to improve productivity and address workforce challenges.
The PC158USLCi-12, featuring IMC 3.0, introduces several advanced features new to this size class to enhance productivity, working accuracy, and job site safety.
Previous introductions to the -12 excavator lineup include the PC220LCi-12 with IMC 3.0 — a machine that seamlessly integrates cutting-edge technology.
The PC158USLCi-12 brings significant key excavator specification improvements, a redesigned cab, and Komatsu's proprietary IMC 3.0 technology to offer a comprehensive solution for contractors working in confined areas.
"What we heard consistently from operators, fleet managers, and business owners was the need for a tight tail swing excavator that delivers advanced automation without adding complexity for the operator," said Matt Moen, product manager, Excavators, Komatsu. "The PC158USLCi-12 was developed to help operators stay in control of the work while benefiting from sophisticated IMC 3.0 features that are easy for operators to use. This machine is designed to help drive accuracy, efficiency, and productivity on the job site."
The PC158USLC-12 and PC158USLCi-12 excavators are scheduled to launch later in 2026. Additional details, including availability and full specifications, will be released closer to the launch date.