Radiator Hose Set 203-03-56180 / 203-978-5340 for PC100-5 PC120-5

This Radiator Hose Set is designed for PC100-5 and PC120-5 excavators, including both the upper and lower radiator hoses. The set ensures smooth coolant circulation between the engine and radiator, helping maintain stable engine temperature during daily operation and heavy-duty work.

Replacing the complete hose set helps restore cooling system efficiency and minimizes the risk of coolant leakage caused by aging components.

• Complete upper and lower radiator hose combination

• OEM reference numbers:

  • Upper Hose: 203-03-56180

  • Lower Hose: 203-978-5340

• Designed for PC100-5 and PC120-5 excavators

• Durable rubber construction with strong heat resistance

• Reinforced structure to withstand pressure and vibration

• Precision-molded shape for correct routing and tight sealing

• Suitable for maintenance, repair, or cooling system overhaul

• Machine models: PC100-5, PC120-5

• Product type: Radiator Hose Set (Up + Down)

• Installation position: Between engine and radiator

• Function:

  • Upper hose transfers heated coolant to radiator

  • Lower hose returns cooled coolant back to engine

• Assistance with machine model verification

• Professional guidance for cooling system parts selection

• Stable supply capacity for international distribution

• OEM and customized production supported

• Supplied as a matched set

• Individually protected to prevent deformation

• Packed in export-standard cartons

• Neutral packaging available

Q1: Is this set compatible with both PC100-5 and PC120-5?
A: Yes, it is manufactured according to OEM specifications for these models.

Q2: Why replace both hoses together?
A: Replacing the full set ensures balanced performance and reduces the chance of uneven wear or future leakage.

Q3: Is this suitable for heavy working conditions?
A: Yes, the hose material is designed to handle high temperature and continuous operation.