Lower radiator hose YNF16344 for WA450-1 / WA470-1, replaces OEM 421-03-11931.
Lower radiator hose for WA450-1 and WA470-1 excavators
Replaces OEM part number 421-03-11931
Transfers cooled coolant from radiator to engine
Reinforced rubber construction for durability
Resistant to heat, pressure, and vibration
The YNF16344 Lower Radiator Hose is designed for WA450-1 and WA470-1 excavators, replacing OEM part number 421-03-11931. It carries cooled coolant from the radiator back to the engine, completing the cooling cycle and maintaining proper engine temperature.
Manufactured from reinforced rubber, this hose provides excellent resistance to heat, internal pressure, and vibration. Produced to OEM standards, YNF16344 ensures precise fitment, leak-proof performance, and long service life in heavy-duty construction machinery.
| Parameter | Details |
|---|---|
| YNF Part Number | YNF16344 |
| OEM Part Number | 421-03-11931 |
| Product Name | Lower Radiator Hose |
| Machine Model | WA450-1 / WA470-1 |
| Hose Type | Coolant / Water Hose |
| Position | Radiator Lower |
| Material | Reinforced rubber |
| Function | Transfers cooled coolant to engine |
| 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 |
|---|---|
| WA450-1 / WA470-1 | Engine cooling lower hose |
| Excavator Maintenance | Radiator outlet coolant line |
| Construction Machinery | Cooling system replacement |
| Engine Temperature Control | Maintains optimal engine operation |
FAQs:
Which machines does this hose fit?
WA450-1, WA470-1
What is the OEM part number?
421-03-11931
Is this hose upper or lower?
Lower radiator hose
Is installation direct-fit?
Yes, OEM-standard
What material is used?
Reinforced rubber
YNF16344 lower radiator hose ensures reliable coolant return flow for WA450-1 and WA470-1 excavators. Designed as a replacement for 421-03-11931, it provides durable performance, secure sealing, and OEM-standard fitment for stable engine cooling.
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