Radiator lower hose YNF04402 for EX300-2 and EX300-3 replaces 3063968 for stable coolant outlet flow.
Radiator lower hose for Hitachi EX300-2 and EX300-3 excavators
YNF04402 OEM-standard aftermarket replacement
Replaces OEM reference number 3063968
Designed for radiator outlet coolant line
High resistance to heat, pressure, and coolant corrosion
The YNF04402 Radiator Lower Hose is designed for Hitachi EX300-2 and EX300-3 excavators, serving as the coolant outlet hose from the radiator to the engine. It ensures smooth coolant return flow and stable engine temperature during continuous heavy-duty operation.
Manufactured from high-quality reinforced rubber, this hose offers excellent resistance to high temperature, internal pressure, coolant chemicals, oil exposure, and engine vibration. Produced according to OEM specifications, YNF04402 provides precise fitment, reliable sealing, and long service life. It is ideal for cooling system repair, preventive maintenance, and engine overhaul.
| Parameter | Details |
|---|---|
| YNF Part Number | YNF04402 |
| OEM Reference Number | 3063968 |
| Product Name | Radiator Lower Hose |
| Machine Model | Hitachi EX300-2, EX300-3 |
| Hose Type | Coolant / Water Hose |
| Position | Lower radiator hose |
| Material | Reinforced rubber |
| Function | Coolant outlet circulation |
| Installation Type | Direct replacement |
| Condition | New |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Piece |
| Shipping Method | 1. Air 2. Sea 3. Express |
| Payment Terms | 1. T/T 2. PayPal 3. Western Union |
| Application Area | Description |
|---|---|
| Hitachi EX300-2 | Engine cooling system |
| Hitachi EX300-3 | Radiator coolant outlet hose |
| Excavator Cooling Line | Lower radiator water hose |
| Construction Machinery | Heavy-duty cooling applications |
| Engine Maintenance | Replacement of worn coolant hoses |
FAQs:
Which machines does this hose fit?
Hitachi EX300-2 and EX300-3
Which OEM number does it replace?
3063968
Is this a direct replacement hose?
Yes, OEM-standard direct fit
Minimum order quantity?
One piece
Is modification required?
No, direct installation
The YNF04402 Radiator Lower Hose ensures reliable coolant outlet performance for EX300-2 and EX300-3 excavators. Its reinforced rubber construction withstands high temperature and pressure while maintaining secure sealing and long service life. YNF Machinery provides stable quality, competitive pricing, and fast global delivery.
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