Straight Answer First
If you searched for a "Komatsu commercial truck hydraulic pump," here's the honest answer: Komatsu doesn't build road-legal trucks — no tipper trucks, mixer trucks, or truck-mounted cranes on a road chassis. Its heaviest hauling product is the HM-series articulated dump truck, an off-highway mining machine that never drives on public roads.
If you have a road-going tipper, mixer, or crane-mounted truck and it happens to be loading/unloading alongside Komatsu construction equipment on site, that's likely why you searched "Komatsu commercial truck" — but the truck's own hydraulics belong to whichever brand actually built the tipper/crane/mixer system, not Komatsu. If your machine is the off-highway HM-series articulated dump truck instead, we cover that directly.