The YNF04402 Radiator Lower Hose is designed for EX300-2 and EX300-3 excavators, serving as the lower hose in the engine cooling system. It returns cooled coolant from the radiator back to the engine, ensuring continuous circulation, preventing overheating, and maintaining stable engine temperatures during heavy-duty operation.

• OEM-equivalent replacement for 3063968

• Compatible with EX300-2 / EX300-3 excavators

• Constructed from high-quality rubber for durability and reliability

• Withstands high temperature, pressure, and coolant exposure

• Resistant to aging, cracking, and deformation

• Flexible design for proper routing and secure installation

• Molded for precise fit and leak-free sealing

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

• Machine models: EX300-2, EX300-3 excavators

• Part type: Radiator Lower Hose

• System: Engine cooling system

• Function: Returns coolant from radiator to engine to maintain stable temperature

• Part number and application verification

• Technical guidance for installation and selection

• Stable supply for aftermarket and bulk orders

• Custom radiator hose solutions available upon request

• Individually packed to prevent deformation

• Export-standard carton packaging

• Neutral or YNF-branded packaging optional

• Can be shipped together with other cooling system components

Q1: Is this hose compatible with the upper hose YNF04401?
A: Yes, it pairs perfectly with YNF04401 for a complete radiator hose set.

Q2: Can it be installed directly?
A: Yes, designed to match OEM dimensions for direct installation.

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

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