This radiator hose set is designed for R290-7 and R305-7 excavators, including both upper and lower hoses. The upper hose (YNF04395 / 11NA-40151) directs hot coolant from the engine to the radiator, while the lower hose (YNF04396 / 11NB-40021) transfers cooled coolant back to the engine. Together, they ensure efficient heat dissipation, reliable coolant circulation, and stable engine temperature during continuous or heavy-duty operation.

• Complete upper and lower hose set for R290-7 / R305-7 excavators

• OEM-equivalent replacements for 11NA-40151 (upper) and 11NB-40021 (lower)

• Made from high-quality rubber for long-lasting durability

• Resistant to high temperature, pressure, and coolant corrosion

• Flexible design allows precise routing and secure connection

• Molded to match OEM specifications for leak-free sealing

• Ensures stable engine cooling and reliable operation

• Ideal for maintenance, repair, or full cooling system replacement

• Machine models: R290-7, R305-7 excavators

• Part type: Radiator Hose Set (Upper & Lower)

• System: Engine cooling system

• Function: Transfers coolant between engine and radiator for efficient temperature control

• Part number and model verification

• Technical guidance for installation and selection

• Stable supply for aftermarket 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

• Upper and lower hoses can be shipped together with other cooling system components

Q1: Can this hose set be installed directly?
A: Yes, both hoses match OEM dimensions for direct replacement.

Q2: Are these hoses suitable for heavy-duty operation?
A: Yes, designed to withstand high temperature and continuous operation.

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