Complete radiator hose set for ZAX330 EFI, including upper and lower hoses 3103777H for stable coolant flow.
Complete radiator hose set for Hitachi ZAX330 EFI excavators
Includes YNF04399 (Upper) and YNF04400 (Lower)
Replaces OEM reference 3103777H
Reinforced rubber resists heat, pressure, and coolant chemicals
Prevents cracking, swelling, and deformation
The YNF04399 & YNF04400 Radiator Hose Set is a complete coolant hose solution for Hitachi ZAX330 EFI excavators. It includes the upper and lower radiator hoses (3103777H), ensuring full coolant circulation between the engine and radiator.
Manufactured from premium reinforced rubber, both hoses provide excellent resistance to high temperature, internal pressure, coolant chemicals, oil, and engine vibration. The reinforced structure prevents cracking, collapse, and deformation under heavy-duty operating conditions. Produced according to OEM specifications, this radiator hose set guarantees precise fitment, secure sealing, and long service life. Perfect for cooling system maintenance, radiator repair, or engine overhaul.
| Parameter | Details |
|---|---|
| YNF Part Numbers | YNF04399 (Upper), YNF04400 (Lower) |
| OEM Reference Number | 3103777H |
| Product Name | Radiator Hose Set |
| Machine Model | Hitachi ZAX330 EFI |
| Hose Type | Coolant / Water Hose |
| Position | Upper & Lower radiator hoses |
| Material | Reinforced rubber |
| Function | Engine coolant circulation |
| Installation Type | Direct replacement |
| Condition | New |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Set |
| Shipping Method | 1. Air 2. Sea 3. Express |
| Payment Terms | 1. T/T 2. PayPal 3. Western Union |
| Application Area | Description |
|---|---|
| Hitachi ZAX330 EFI | Engine cooling system |
| Excavator Cooling Line | Radiator inlet and outlet hoses |
| Construction Machinery | Heavy-duty cooling applications |
| Engine Maintenance | Replacement of worn radiator hoses |
| Cooling System Repair | Prevents coolant leakage and overheating |
FAQs:
What hoses are included in this set?
One upper hose (YNF04399) and one lower hose (YNF04400)
Which OEM number is replaced?
3103777H
Is this hose set a direct replacement?
Yes, OEM-standard fit
Minimum order quantity?
One set
Is modification required for installation?
No, direct installation
The YNF04399 & YNF04400 Radiator Hose Set delivers complete and reliable cooling system performance for ZAX330 EFI excavators. Reinforced rubber construction and OEM-accurate dimensions ensure stable coolant flow under high temperature and pressure. YNF Machinery provides consistent quality, competitive pricing, and fast global delivery. Contact us today for pricing and availability.
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