The YNF16704 Radiator Upper Hose is applied to the R520-9 excavator and connects the engine outlet to the radiator inlet. It allows high-temperature coolant to flow into the radiator, supporting effective heat exchange and stable cooling performance during demanding operating conditions.

• Replacement radiator upper hose corresponding to OEM 11QB-41130

• Designed for R520-9 excavator cooling system configuration

• Produced from quality rubber material with reinforced structure

• Maintains flexibility under heat and vibration

• Formed to match the original routing and connection points

• Contributes to consistent coolant flow and reliable engine operation

• Suitable for scheduled maintenance and cooling system repair

• Machine model: R520-9 excavator

• Hose type: Radiator Upper Hose

• Installation position: Upper radiator section

• Function: Guides heated coolant from engine to radiator

• Assistance with part number and model confirmation

• Technical support for hose selection and replacement

• Stable supply for export and aftermarket distribution

• Custom manufacturing available based on samples or drawings

• Individually packed to preserve hose shape

• Export-standard carton packaging

• Neutral packing or YNF branding optional

• Can be supplied together with lower hose if required

Q1: Is this hose suitable for direct replacement on R520-9?
A: Yes, it is designed according to the original installation requirements.

Q2: Can it handle continuous heavy-duty operation?
A: It is manufactured to meet cooling system demands under normal working conditions.

Q3: Are clamps included?
A: Hose clamps are not included unless requested separately.