The YNF04400 Radiator Lower Hose is designed for ZAX330-3 EFI excavators, functioning as the lower coolant return hose in the engine cooling system. It guides cooled coolant from the radiator back to the engine, supporting stable circulation and helping the engine maintain reliable operating temperatures during extended operation.

• Replacement reference: 3104963H

• Designed specifically for ZAX330-3 EFI excavators

• Produced from high-quality rubber material for durability

• Withstands continuous exposure to heat, pressure, and coolant

• Good resistance to aging, deformation, and cracking

• Optimized flexibility for accurate routing and secure installation

• Precision-molded to reduce leakage risk

• Suitable for maintenance service or cooling system renewal

• Machine model: ZAX330-3 EFI excavator

• Part type: Radiator Lower Hose

• System: Engine cooling system

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

• Part number and application confirmation

• Technical guidance for selection and installation

• Stable supply for aftermarket and bulk orders

• Custom hose solutions available upon request

• Individually packed to prevent deformation

• Export-standard carton packaging

• Neutral or YNF packaging available

• Can be shipped together with other cooling system components

Q1: Is this hose suitable only for EFI models?
A: Yes, it is designed for ZAX330-3 EFI configurations.

Q2: Can it be installed directly?
A: Yes, manufactured according to OEM dimensions for direct fitment.

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

.