KSH0778 Lower Radiator Hose supports SH300A1 cooling maintenance for B2B excavator parts replacement, stocking, repair, and wholesale sourcing.
The KSH0778 Lower Radiator Hose YNF19017 is supplied for compatible SH300A1 excavator engine cooling systems. It is installed within the lower section of the radiator circuit, where coolant is transferred between the radiator and the corresponding engine-side cooling connection.
Because the hose is continuously exposed to coolant, engine vibration, heat, and repeated pressure changes, deterioration can develop after extended machine operation. Cracking, swelling, hardened rubber, damaged hose ends, or leakage around clamped connections may indicate that replacement is required.
For B2B buyers, the KSH0778 Lower Radiator Hose should be checked by part number, SH300A1 machine reference, molded routing, bend positions, overall length, connection diameters, and existing-hose photos. Similar-looking radiator hoses may use different curves or end sizes. Accurate comparison before quantity purchasing helps wholesalers reduce incorrect inventory, installation delays, customer complaints, and repeated international freight.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF19017 |
| Part Number | KSH0778 |
| 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 | SH300A1 |
| 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 Number / Machine Model / 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 |
|---|---|
| SH300A1 Excavator | Used in compatible engine cooling systems |
| Lower Radiator Circuit | Provides coolant transfer through the lower cooling path |
| Cooling Package Service | Suitable when radiator-side hoses are inspected or renewed |
| Coolant Leak Repair | Used when cracking, swelling, or leakage is identified |
| Radiator Replacement | Can be renewed while the radiator is being serviced |
| Cooling System Overhaul | Suitable for broader hose and coolant-circuit restoration |
| Fleet Maintenance | Practical for planned excavator cooling-system servicing |
| B2B Inventory | Suitable for dealers, wholesalers, and repair suppliers |
Q: Is KSH0778 the upper radiator hose?
A: No. KSH0778 is identified as the lower radiator hose.
Q: What is the matching upper hose reference?
A: The supplied related upper hose reference is KSH0777.
Q: What should be checked before bulk purchasing?
A: Part number, machine model, hose shape, bend positions, end diameters, length, and existing-part photos should be verified.
YNF Machinery supplies KSH0778 lower radiator hoses and related SH300A1 cooling-system components for excavator workshops, fleet operators, machinery dealers, wholesalers, and international importers.
The YNF19017 lower coolant hose is a molded, fitment-sensitive maintenance part. For B2B buyers, the part number should be checked together with hose routing, bend positions, end diameters, and overall dimensions before bulk purchasing.
Professional buyers can provide the KSH0778 reference, SH300A1 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, radiator caps, thermostats, water pumps, cooling fans, and other SH300A1 cooling-system parts can also be consolidated into the same inquiry to simplify procurement and reduce fragmented shipping costs.
