K1025493 Lower Radiator Hose fits DX300LCA cooling circuits for B2B excavator parts repair, replacement stocking, and wholesale sourcing.
The K1025493 Lower Radiator Hose YNF14332, also referenced as 420109-00987A, is supplied for compatible DX300LCA excavator engine cooling systems. It is positioned in the lower radiator circuit, where coolant is transferred between the radiator and the corresponding engine-side cooling connection.
Radiator hoses operate under repeated temperature changes, coolant exposure, vibration, and pressure cycling. After extended service, the original hose may become hardened, swollen, cracked, or weakened around the clamping areas, increasing the possibility of coolant leakage and machine downtime.
For B2B buyers, the K1025493 DX300LCA lower radiator hose should be checked by both reference numbers, molded shape, overall length, bend positions, inlet and outlet diameters, and existing-hose photos before bulk purchasing. Because formed hoses can appear similar while using different routing geometry, physical comparison is recommended to reduce incorrect stock, installation problems, customer claims, and repeated international freight.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF14332 |
| Primary Part Number | K1025493 |
| Alternative Part Number | 420109-00987A |
| Product Name | Lower Radiator Hose |
| Alternative Name | Lower Coolant Hose / Bottom Radiator Hose / Lower Water Hose |
| Product Type | Molded Engine Cooling Hose |
| Parts Category | Excavator Cooling System Parts |
| Machine Reference | DX300LCA |
| Hose Position | Lower Radiator Circuit |
| Main Function | Transfers Coolant Through the Lower Cooling Circuit |
| Application | Excavator Engine Cooling System |
| Installation | Lower Radiator-to-Engine Cooling Connection |
| Working Medium | Engine Coolant |
| Fitment Check | Part Numbers / Shape / Length / Bends / 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 |
|---|---|
| DX300LCA Excavator | Used in compatible engine cooling configurations |
| Lower Radiator Circuit | Provides coolant transfer through the lower cooling path |
| Cooling System Overhaul | Suitable when aging hoses are renewed during major service |
| Radiator Replacement | Can be replaced when the radiator is removed or serviced |
| Coolant Leak Repair | Suitable when cracking, swelling, or leakage is identified |
| Water Pump Service | Can be inspected during corresponding cooling-system repairs |
| Fleet Maintenance | Practical for preventive heavy-equipment servicing |
| B2B Parts Stocking | Suitable for wholesalers, dealers, and repair suppliers |
Q: What is YNF14332?
A: It is a DX300LCA lower radiator hose supplied under references K1025493 and 420109-00987A.
Q: Are K1025493 and 420109-00987A both references for this product?
A: Yes. Both references are supplied for product identification and fitment checking.
Q: Where is this hose installed?
A: It is used in the lower section of the compatible radiator cooling circuit.
YNF Machinery supplies K1025493 / 420109-00987A lower radiator hoses and related DX300LCA cooling-system parts for excavator workshops, fleet operators, machinery dealers, wholesalers, and international importers.
The YNF14332 lower coolant hose is a molded, fitment-sensitive replacement component. For professional buyers, both reference numbers should be checked together with hose shape, bend orientation, end diameters, and installation routing before quantity purchasing.
Buyers can provide the K1025493 or 420109-00987A reference, DX300LCA machine information, required quantity, hose-end measurements, installation photos, and clear images of the removed hose for fitment confirmation.
Upper radiator hoses, radiators, coolant reservoirs, water pumps, thermostats, radiator caps, cooling fans, and related cooling-system components can also be consolidated into the same inquiry to simplify procurement and reduce fragmented international shipping costs.
