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Water Hose 11K9-42120 for Engine Cooling System YNF17015

Water hose 11K9-42120 for coolant transfer in diesel engine cooling systems.

  • Designed for coolant circulation between engine and radiator

  • Made of EPDM rubber for high-temperature and chemical resistance

  • Textile reinforcement prevents collapse and leakage

  • Flexible structure allows easy routing in tight engine compartments

  • OEM-compliant replacement part for B2B aftermarket and service use

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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

FAQs

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:

  • Matching Upper and Lower Radiator Hoses

  • Water Pump Assemblies

  • Thermostat Housing Components

  • Engine Coolant Reservoir Hoses

  • 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.

Get a Quote for Water Hose

Need a replacement for water hose 11K9-42120 in your engine cooling circuit? YNF Machinery provides YNF17015 – built from durable, high-temperature EPDM rubber for coolant routing in industrial and construction equipment. A trusted B2B product for service teams and spare part distributors. Contact us now for competitive pricing.

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