Upper and lower radiator hose set replacing 3085134 and 4415637 for EX75US-5 4JG1 excavators.
Complete upper and lower radiator hose set
Includes YNF12286 (Upper) and YNF12287 (Lower)
Replaces 3085134 (Upper) and 4415637 (Lower)
Designed for Hitachi EX75US-5 4JG1
High resistance to heat, pressure, and coolant chemicals
The YNF12286 & YNF12287 Radiator Hose Set is a complete coolant hose solution designed for Hitachi EX75US-5 4JG1 excavators. This set includes the upper radiator hose (3085134) and the lower radiator hose (4415637), ensuring full coolant circulation between the engine and radiator.
Manufactured from high-quality reinforced rubber, both hoses offer excellent resistance to high temperature, internal pressure, coolant chemicals, oil, and engine vibration. The reinforced structure prevents deformation, cracking, and collapse under heavy-duty operating conditions.
Produced according to OEM specifications, this radiator hose set provides precise fitment and fast installation without modification. It is ideal for preventive maintenance, cooling system repair, and engine overhaul, helping extend engine life and reduce downtime.
| Parameter | Details |
|---|---|
| YNF Part Numbers | YNF12286 (Upper), YNF12287 (Lower) |
| OEM Reference Nos. | 3085134 / 4415637 |
| Product Name | Radiator Hose Set |
| Machine Model | Hitachi EX75US-5 4JG1 |
| 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 EX75US-5 4JG1 | Engine cooling system |
| Excavator Cooling Line | Radiator coolant 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 is included in this set?
One upper radiator hose (YNF12286) and one lower radiator hose (YNF12287)
Which OEM numbers are replaced?
3085134 and 4415637
Is this set for 4JG1 engines only?
Yes, it is designed for EX75US-5 4JG1 models
Minimum order quantity?
One set
Is modification required?
No, direct installation
The YNF12286 & YNF12287 Radiator Hose Set provides a complete and reliable cooling solution for Hitachi EX75US-5 4JG1 excavators. With reinforced rubber construction and OEM-accurate dimensions, this set ensures stable coolant flow under high temperature and pressure. YNF Machinery offers consistent quality, competitive pricing, and fast global delivery. Contact us today for pricing and availability.
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