1A021-73340 Coolant Distribution Hose supports Kubota cooling-line branching for B2B excavator parts replacement, wholesale inventory, and professional repair sourcing.
The 1A021-73340 Coolant Distribution Hose YNF19007 is supplied for compatible Kubota engine cooling systems. It is used as a water-distribution or branch hose within the coolant circuit, allowing coolant to be transferred between corresponding cooling-system connections.
Cooling hoses are continuously exposed to coolant, engine heat, vibration, and repeated temperature changes. With extended service, rubber hoses can become hardened, swollen, cracked, or weakened around their connection areas. Leakage at a coolant branch can reduce coolant volume and may interrupt normal engine cooling-system operation.
For B2B buyers, the 1A021-73340 Kubota coolant hose should be verified by reference number, exact engine or machine model, hose routing, overall length, branch configuration, connection diameters, and existing-part photos. The exact cooling-system branch position has not been supplied, so physical matching should be prioritized before bulk purchasing to reduce incorrect inventory, installation delays, customer claims, and repeat freight.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF19007 |
| Part Number | 1A021-73340 |
| Product Name | Coolant Distribution Hose |
| Alternative Name | Water Distribution Hose / Coolant Branch Hose / Engine Water Hose |
| Product Type | Engine Cooling System Hose |
| Parts Category | Diesel Engine Cooling Parts |
| Brand Reference | Kubota |
| Main Function | Routes Coolant Between Corresponding Cooling-System Branches |
| Application | Compatible Kubota Engine Cooling System |
| Installation | Cooling-System Distribution / Branch Line |
| Working Medium | Engine Coolant |
| Machine Model | To Be Confirmed |
| Engine Model | To Be Confirmed |
| Exact Branch Position | To Be Confirmed |
| Fitment Check | Part Number / Routing / Length / Branch Shape / End Diameters / 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 |
|---|---|
| Kubota Engine Cooling | Used in compatible coolant circulation systems |
| Coolant Branch Connection | Routes coolant between corresponding cooling-line branches |
| Water Hose Replacement | Suitable when the original hose becomes cracked or hardened |
| Coolant Leak Repair | Can be replaced when leakage is found around branch connections |
| Engine Overhaul | Suitable for inspection during major engine servicing |
| Cooling System Maintenance | Can be renewed during hose and coolant circuit service |
| Fleet Maintenance | Practical for preventive machinery servicing |
| B2B Parts Stocking | Suitable for dealers, wholesalers, and engine parts suppliers |
Q: What brand reference is supplied?
A: The supplied reference is Kubota.
Q: Is this specifically an upper or lower radiator hose?
A: No. It is identified as a coolant distribution or water branch hose.
Q: Is a specific Kubota engine model confirmed?
A: No. The exact engine or machine model should be confirmed before ordering.
YNF Machinery supplies 1A021-73340 coolant distribution hoses and related Kubota engine cooling parts for machinery repair workshops, fleet operators, dealers, wholesalers, and international importers.
The YNF19007 water distribution hose is a fitment-sensitive cooling component. For professional B2B buyers, part number verification should be combined with the hose routing, branch configuration, connection diameters, and overall dimensions before quantity purchasing.
Buyers can provide the 1A021-73340 reference number, machine or engine model, required quantity, hose dimensions, branch-connection photos, end diameters, and clear images of the removed hose for confirmation.
Radiator hoses, water pumps, thermostats, coolant pipes, radiator caps, coolant tanks, clamps, and other Kubota cooling-system parts can also be consolidated into the same inquiry to simplify sourcing and reduce fragmented international shipping costs.
