Komatsu 208-03-75150 Hydraulic Oil Cooler Assembly

The 208-03-75150 hydraulic oil cooler is designed for Komatsu large excavators including the PC450-8, PC400-8, PC400LC-8, and PC550LC-8 series. It functions as a critical heat exchanger within the hydraulic circuit, dissipating thermal energy from the hydraulic fluid to maintain optimal operating viscosity and prevent component overheating. Constructed with an aluminum plate-fin core for high thermal transfer efficiency and corrosion resistance, the unit features brazed joints for structural integrity under high-pressure pulsation. It mounts directly to the OEM frame points using existing hardware. This assembly replaces OEM part numbers 208-03-75150, 208-03-75140, 208-03-75160, and 208-03-76110. Verified fitment requires confirmation of machine serial number range due to potential configuration variations across production years.