YNF02977 3104767 Molded Upper Radiator Hose for ZAX200-3 ZAX240-3 Engine Cooling Service

The 3104767 Upper Radiator Hose YNF02977 is supplied for compatible ZAX200-3 and ZAX240-3 excavator engine cooling systems. It is positioned in the upper radiator circuit, where heated coolant is routed from the engine-side outlet toward the radiator for heat dissipation.

During excavator operation, radiator hoses are repeatedly exposed to hot coolant, pressure changes, engine vibration, and temperature cycling. Over time, cracking, swelling, hardened surfaces, weakened hose ends, or coolant leakage may develop and replacement can be required.

For B2B buyers, the 3104767 upper radiator hose should be verified by part number, machine model, molded shape, bend orientation, overall length, hose-end diameters, and existing-part photos before bulk purchasing. Upper and lower hoses may appear similar in some applications but follow different routing paths. Accurate identification helps wholesalers reduce incorrect inventory, installation delays, warranty disputes, and repeated international freight.