3104768 Lower Radiator Hose connects ZAX200-3/ZAX240-3 cooling circuits for B2B excavator parts repair, replacement stocking, and wholesale sourcing.
The 3104768 Lower Radiator Hose YNF01870 is supplied for compatible ZAX200-3 and ZAX240-3 excavator cooling systems. It is installed at the lower radiator circuit, where engine coolant is transferred between the radiator and the corresponding engine-side cooling connection.
Radiator hoses are exposed to repeated temperature changes, coolant contact, vibration, and movement during machine operation. Aging, cracking, swelling, surface damage, or weakened hose ends can increase the risk of coolant leakage and unplanned machine downtime.
For B2B buyers, the 3104768 lower radiator hose should be verified by part number, machine model, hose routing shape, overall length, bend positions, connection diameters, and existing-hose photos before quantity purchasing. Because molded coolant hoses may appear similar while using different curves or end sizes, visual and dimensional comparison is recommended. Accurate matching helps distributors reduce wrong inventory, installation delays, customer claims, and unnecessary repeat freight.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF01870 |
| Part Number | 3104768 |
| Product Name | Lower Radiator Hose |
| Alternative Name | Lower Coolant Hose / Bottom Radiator Hose / Water Hose |
| Product Type | Engine Cooling System Hose |
| Parts Category | Excavator Cooling System Parts |
| Machine Reference | ZAX200-3 / ZAX240-3 |
| Hose Position | Lower Radiator Circuit |
| Main Function | Transfers Coolant Through the Lower Cooling Circuit |
| Application | Excavator Engine Cooling System |
| Installation | Between Radiator and Corresponding Engine Cooling Connection |
| Working Medium | Engine Coolant |
| Fitment Check | Part Number / Hose Shape / Length / Bend Position / End Diameter / Existing Hose Photo |
| Quality Type | Aftermarket Replacement |
| Condition | New |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Piece |
| Shipping Method | Air, Sea, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application | Description |
|---|---|
| ZAX200-3 Excavator | Used in compatible lower radiator cooling circuits |
| ZAX240-3 Excavator | Suitable for the supplied compatible machine reference |
| Radiator Connection | Transfers coolant through the lower radiator section |
| Cooling System Repair | Suitable when the original hose is cracked, leaking, or aged |
| Radiator Replacement | Can be renewed when the radiator assembly is serviced |
| Coolant Maintenance | Suitable during cooling-system draining and inspection |
| Fleet Maintenance | Practical for preventive excavator service |
| B2B Parts Stocking | Suitable for dealers, wholesalers, and repair suppliers |
Q: What is YNF01870?
A: It is a lower radiator hose with reference number 3104768.
Q: Which machines are referenced?
A: The supplied machine references are ZAX200-3 and ZAX240-3.
Q: Where is this hose installed?
A: It is used in the lower radiator section of the compatible engine cooling circuit.
Q: What should be checked before ordering?
A: Part number, machine model, hose shape, length, bend positions, end diameters, and existing-part photos should be compared.
YNF Machinery supplies 3104768 lower radiator hoses and related ZAX200-3 / ZAX240-3 cooling-system parts for excavator repair workshops, fleet operators, machinery dealers, wholesalers, and international importers.
The YNF01870 lower coolant hose is a fitment-sensitive molded component. For wholesale buyers, the hose shape should be checked together with the connection diameters and bend positions because apparently similar radiator hoses may not follow the same routing.
Professional B2B buyers can provide the 3104768 part number, machine model, required quantity, hose-end diameters, overall dimensions, routing photos, and clear images of the removed hose for confirmation.
Radiators, upper radiator hoses, coolant tanks, thermostats, water pumps, radiator caps, fan components, and other cooling-system parts can also be consolidated into the same inquiry to simplify purchasing and reduce fragmented international shipment costs.
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