Heater Outlet Hose for Subaru Cooling System

This OEM‑grade coolant line sends hot engine coolant from the block to the heater core, giving you fast cabin heat and stable engine temps. Built from heat‑resistant EPDM rubber with molded bends, it keeps flow steady under pressure and resists oil, ozone, and coolant additives. A fresh hose protects your engine, heater performance, and fuel economy. ♨️

Why it’s needed

Over time, rubber hardens, cracks, or swells. Replacing this hose restores safe coolant circulation to the heater circuit, prevents leaks, and keeps the thermostat and radiator working as designed.

How it works

Coolant leaves the engine, travels through this outlet hose to the heater core, warms cabin air, then returns via the inlet hose. Proper internal diameter and molded routing maintain flow and avoid kinks. ✅

If the hose is damaged

• Coolant leak, sweet smell, or puddles
• Poor cabin heat, fogged windows ❄️
• Rising temperature gauge, potential overheating ⚠️
• Risk of head gasket or engine damage if ignored

Replace at the first sign of soft spots, bulges, cracks, or crusty clamps. Always install with new clamps and bleed air after service.

Compatibility

• Legacy
• Impreza
• Forester