Hyundai Radiator Water Hose Catalog

Upper (Inlet) & Lower (Outlet) Cooling System Components

These genuine Hyundai components are designed to manage the extreme thermal cycles of the engine cooling system, ensuring consistent coolant circulation and preventing overheating.

1. Product Specifications

Part Number	Type	Compatibility
11Q9-40292	Lower (Outlet)	R335LC-9, R335LC-9T, R385LC-9
11M8-40210	Lower (Outlet)	R55-7Super, R60-7, R60W-7, R80-7, R80-9
11Q6-41150	Lower (Outlet)	R215-9
11N8-40021	Upper (Inlet)	R305LC-7, R335LC-7, R375LC-7
11N6-46111	Upper (Inlet)	R205-7, R215-7
11E6-41300	Upper (Inlet)	R130LC-5

2. Cooling System Maintenance Protocols

Inspection: Regularly check hoses for signs of "crusty" residue (dried coolant), swelling, or hardening. A hose that feels brittle when squeezed should be replaced immediately.
Installation Tip: Always clean the radiator and engine inlet/outlet stubs of any corrosion or old rubber remnants before installing a new hose to ensure a perfect, leak-free seal.
Clamping: Use original-style hose clamps and ensure they are tightened to the correct tension. Over-tightening can cut the hose material, while under-tightening leads to pressure leaks.
Safety Note: Never attempt to check or remove cooling hoses while the engine is hot, as the cooling system remains under high pressure and can cause severe burns.