Hose Bottom.
Flexible hose that is part of the engine cooling system.

• Important part of cooling system
• The hose coolant travels through to get between the radiator and engine
• Replace when cracked or leaking

Your INFINITI's cooling system is designed to prevent the engine from overheating. And this cooling system relies on a quality, functioning Radiator Coolant Hose (Lower) to work correctly. As your vehicle's coolant fluid goes through the radiator and coolant system to the engine, it passes through a Radiator Coolant Hose (Lower). It's important your Radiator Coolant Hose (Lower) is free from leaks, cracks, or bloating that may cause further damage to your vehicle.

Eventually, the rubber in the Radiator Coolant Hose (Lower) on your INFINITI can get old and wear out. When this occurs, the Radiator Coolant Hose (Lower) can become brittle and crack, allowing coolant to leak out. If too much coolant leaks out, the engine might not receive enough coolant to control the engine's temperature, which may cause overheating in your INFINITI. If overheating occurs, it could lead to added repairs and further damage to your vehicle.

Additionally, the Radiator Coolant Hose (Lower) can get bloated, meaning the hose bulges out or swells in some places. An engine overheating from low coolant can cause superheated coolant to pass through the Radiator Coolant Hose (Lower), causing the rubber material to swell and bloat, potentially causing further cracks and damage to your Radiator Coolant Hose (Lower).

If you believe a Radiator Coolant Hose (Lower) on your INFINITI needs replacing, a great place to start is a visual inspection. When checking the coolant system, always ensure the coolant system and engine are completely cooled down, as the entire cooling system is pressurized, and super hot coolant may spray if the Radiator Coolant Hose (Lower) becomes compromised.

When checking out the Radiator Coolant Hose (Lower), look for swelling, cracks, dry-rot, and warping. Check the ground underneath the vehicle for coolant leaks, especially where your Radiator Coolant Hose (Lower) is attached to the vehicle.

Additionally, look on your dashboard if you think your Radiator Coolant Hose (Lower) is bad. Check to see if the Low Coolant light is on or if the temperature gauge is in the red, meaning your engine is running too hot. Your owner's manual provides an overview of your vehicle's dashboard lights and what they mean.

Is it time to replace the Radiator Coolant Hose (Lower) on your INFINITI? Order a genuine replacement Cooling System Radiator Coolant Hose (Lower) for your INFINITI QX4. See the What This Fits tab for more details.

Fits QX4