YNF17438 3076418 radiator upper hose for EX400-5, reinforced coolant line ensuring stable coolant flow to engine.
OEM specification replacement for Hitachi 3076418 / EX400-5
Reinforced rubber structure for high heat and pressure resistance
Ensures stable coolant flow from radiator to the engine
Durable design withstands vibration, thermal cycling, and coolant corrosion
Suitable for distributors, repair centers, and heavy equipment fleets
The YNF17438 radiator upper hose (3076418) is engineered for the Hitachi EX400-5 excavator cooling system. As the main path delivering coolant from the radiator to the engine, the upper hose must withstand continuous temperature changes, coolant pressure, and engine vibration.
Manufactured with heat-resistant, reinforced rubber, this hose maintains structural integrity under demanding working conditions. Its OEM-matched curvature ensures proper routing, tight sealing, and efficient coolant circulation, preventing overheating and supporting long-term engine health.
Replacing old or cracked hoses with the YNF17438 helps restore the cooling system’s reliability, reduces the risk of coolant leaks, and minimizes equipment downtime. YNF provides durable, cost-effective aftermarket cooling hoses trusted by excavator parts distributors, maintenance workshops, and fleet operators worldwide.
| Parameter | Details |
|---|---|
| YNF Part Number | YNF17438 |
| OEM Number | 3076418 |
| Product Type | Radiator Upper Hose / Coolant Hose |
| Machine Model | Hitachi EX400-5 |
| Material | Heat- and coolant-resistant reinforced rubber |
| Function | Transfers coolant from radiator to engine |
| Resistance | Heat, pressure, vibration, coolant corrosion |
| Application | Excavator cooling system |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Pieces |
| Shipping Methods | Sea, Air, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application Area | Description |
|---|---|
| Cooling System | Supplies coolant to engine for heat regulation |
| Excavator Maintenance | Replacement for worn or leaking radiator hoses |
| Engine Overhaul | Essential part during cooling system service |
| Aftermarket Supply | Suitable for distributors and equipment repair shops |
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FAQs:
Q: Does YNF17438 fit Hitachi EX400-5?
A: Yes, it replaces OEM 3076418 precisely.
Q: What material is used?
A: High-temperature reinforced rubber.
Q: When should a radiator hose be replaced?
A: When showing cracks, bulging, hardening, or coolant leakage.
The YNF17438 3076418 upper radiator hose provides dependable coolant delivery for Hitachi EX400-5 excavators. Built from reinforced, heat-resistant rubber, it ensures stable cooling system performance even under heavy-duty conditions. YNF offers durable aftermarket hoses with reliable stock, strict quality control, and competitive wholesale pricing—making them ideal for distributors, repair centers, and fleet maintenance teams. Send us your inquiry today for bulk order support.
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