The YNF13721 Radiator Lower Hose is designed for the R450LC-7A excavator and is installed at the lower section of the radiator system. It returns cooled coolant from the radiator to the engine, ensuring smooth circulation, preventing overheating, and maintaining optimal engine performance during continuous or heavy-duty operation.

• OEM-equivalent replacement for part number 11NB-45100

• Compatible with R450LC-7A excavators

• Made from durable, reinforced rubber for long service life

• Resistant to high temperature, pressure, and coolant corrosion

• Precisely molded to ensure accurate routing and secure sealing

• Supports consistent coolant return and stable engine cooling

• Suitable for maintenance, repair, or full radiator system replacement

• Machine model: R450LC-7A excavator

• Hose type: Radiator Lower Hose

• Cooling system position: Lower

• Function: Returns cooled coolant from radiator to engine

• Part number verification and model matching

• Technical guidance for installation and replacement

• Stable supply for aftermarket, export, and bulk orders

• Custom radiator hose solutions available upon request

• Individually packed to maintain hose shape

• Export-standard carton packaging

• Neutral or YNF-branded packaging available

• Can be shipped together with upper hose for complete system replacement

Q1: Can this hose be installed directly?
A: Yes, manufactured according to OEM specifications for direct replacement.

Q2: Can it handle continuous heavy-duty operation?
A: Yes, designed for long hours and high-load conditions.

Q3: Are clamps included?
A: No, clamps are not included unless specifically requested.