Heater Coolant Hose Assembly for Nissan SUV

Keep your cabin warm and your engine safe with this OE-grade heater hose assembly. It carries hot coolant to and from the heater core, giving you fast defrost and steady heat on cold mornings ❄️. Age, heat, and vibration can make old hoses crack, swell, or leak. Replacing them in time prevents costly overheating and messy coolant loss.

Why this part is needed

It’s the dedicated path that feeds the HVAC core. Without a sound hose, you’ll smell sweet antifreeze, see fogged glass, and notice weak heat. Small seeps turn into big failures under pressure.

How it works

Engine coolant flows through molded bends to the heater core and back. Reinforced EPDM walls resist heat, chemicals, and pulsation. Pre-formed routing avoids kinks, while secure ends and clamps lock in pressure .

What happens if it’s broken

Coolant loss → overheating → possible head gasket damage. Cabin heat disappears, air pockets form, and steam may vent near the firewall. Leaks can splash belts, causing squeal and charging issues. Replace at the first signs: soft spots, cracks, swelling, or green crust.

Compatibility

• Pathfinder