207-03-75120 Radiator Assembly Fits Komatsu Models

One New Aftermarket Replacement Radiator Assembly for Komatsu PC-Series Hydraulic Excavators

This radiator assembly is a direct-fit replacement for the engine cooling system on Komatsu PC300, PC350, PC400, and PC450 series hydraulic excavators. The assembly manages engine coolant temperature during heavy-duty digging and lifting cycles, preventing overheating and maintaining stable engine performance under continuous load.

Specifications

• Core Size (approx.): 1035 mm H x 445 mm W x 100 mm thick
• Overall Height (approx.): 1210 mm (excluding filler neck and cap)
• 3-row core construction

Compatible Models

Komatsu PC300 Series: PC300-7E0, PC300-8, PC300HD-7E0, PC300HD-8, PC300LC-7E0, PC300LC-8, PC300LL-7E0

Komatsu PC340 Series: PC340LC-7K-E0, PC340NLC-7K-E0

Komatsu PC350 Series: PC350-7E0, PC350-8, PC350HD-8, PC350LC-7E0, PC350LC-8, PC350LL-7E0, PC350NLC-8

Komatsu PC400 Series: PC400-7, PC400-7(-50), PC400-7-M1, PC400LC-7, PC400LC-7L, PC400LC-7-M1

Komatsu PC450 Series: PC450-7, PC450-7K, PC450-7-M1, PC450LC-7, PC450LC-7K, PC450LC-7-M1

Serial Number Restrictions: PC300-8 S/N 60001-UP | PC350-8 S/N 60001-UP | PC400-7 S/N Y400001-UP and S/N 50001-UP. Verify serial number compatibility before ordering.

Replaces Part Number(s):

207-03-75120, 207-03-75121, 208-03-71110

Aftermarket Interchange Numbers

2070375120, 2070375121, 2080371110

New aftermarket replacement part - not remanufactured, not used.