Engine Water Hose Description
The YNF17015 Water Hose (Part No. 11K9-42120) is a reinforced rubber hose used in diesel engine cooling systems across various types of construction and industrial equipment. Engineered to carry coolant or water from the engine block to the radiator or back, it is manufactured from heat- and pressure-resistant EPDM rubber with internal reinforcement. This hose ensures long-term sealing performance under engine vibration and coolant chemical exposure, making it a reliable choice for maintenance workshops, OEM-alternative resellers, and B2B parts buyers.
11K9-42120 Water Hose Technical Sheet
| Parameter |
Value |
| Part Name |
Water Hose / 水管 |
| Part No. |
11K9-42120 |
| YNF No. |
YNF17015 |
| Application Area |
Engine Cooling System / Radiator |
| Function |
Coolant Transfer Between Engine & Radiator |
| Material |
EPDM/NBR Rubber + Textile Reinforcement |
| Temperature Range |
-40°C to +130°C |
| Pressure Rating |
Up to 1.5 bar |
| Oil Resistance |
Limited (not for oil use) |
| Brand |
YNF Machinery |
| Country of Origin |
China |
| MOQ |
1 Piece |
| Shipping |
Express / Sea / Air |
| Payment Terms |
T/T, Western Union |
Water Hose Applications
| Application Scenario |
Description |
| Engine Cooling Systems |
Transfers coolant between key thermal control components |
| Radiator Piping |
Used for radiator inlet/outlet connectivity |
| Scheduled Maintenance |
Standard wear part for engine fluid system service |
| OEM-Alternative Market |
Fits 11K9-42120 specifications for replacement needs |
| Equipment Rebuilds and Servicing |
Suitable for bulk inventory in repair or rental operations |
Water Hose 11K9-42120 Detail Display
Why Replace Engine Water Hoses Regularly?
Coolant hoses age due to exposure to heat, pressure, and antifreeze chemicals. Cracks or leaks can lead to engine overheating. YNF17015 ensures proper coolant flow and is a direct-fit replacement for 11K9-42120 water pipes in heavy-duty cooling systems.
Related Products:
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Matching Upper and Lower Radiator Hoses
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Water Pump Assemblies
-
Thermostat Housing Components
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Engine Coolant Reservoir Hoses
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Complete Cooling System Service Kits
FAQs:
-
Does this hose fit multiple engine models?
Yes, as long as the system uses 11K9-42120 spec—contact us for model confirmation.
-
Is it suitable for pressurized systems?
Yes, rated up to 1.5 bar with excellent resistance to collapse or bulging.
