Hose Top.
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 relies on the cooling system to keep the vehicle from overheating. And your vehicle's cooling system relies on a working, quality Radiator Coolant Hose (Upper) to work properly. As the coolant in your INFINITI goes through the radiator and coolant system to the engine, it passes through a Radiator Coolant Hose (Upper). It's important your Radiator Coolant Hose (Upper) is free from cracks, bloating, or leaks that could cause more damage to your INFINITI.

Over time, the rubber that makes your vehicle's Radiator Coolant Hose (Upper) can wear out. When this occurs, the Radiator Coolant Hose (Upper) may become brittle and crack, causing a coolant leak. If too much coolant leaks out, your vehicle's engine may not receive enough coolant to maintain a safe engine temperature, which could cause your INFINITI to overheat. If the engine overheats, it may lead to repairs and damage your vehicle.

Also, your Radiator Coolant Hose (Upper) can become bloated, which means the hose swells up. If low coolant causes the engine to overheat, it may cause extremely hot coolant to travel through the Radiator Coolant Hose (Upper), making the rubber in the hose bloat and swell, potentially causing further cracks and damage to your Radiator Coolant Hose (Upper).

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

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

In addition, look at your dashboard if you suspect a bad Radiator Coolant Hose (Upper). Check to see if the Low Coolant light is on or if the temperature gauge is displaying that your engine is running hot. Your INFINITI owner's manual gives an overview of your vehicle's dashboard lights and what they mean.

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

Fits QX4