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

Your Nissan's cooling system is designed to prevent the engine from overheating. And the cooling system depends on a functioning, quality Radiator Coolant Hose (Upper) to work like it should. As your vehicle's coolant fluid passes through the radiator and coolant system to your engine, it travels through a Radiator Coolant Hose (Upper). It's crucial that your Radiator Coolant Hose (Upper) is free from cracks, bloating, or leaks that could cause more damage to your Nissan.

Eventually, the rubber in your Nissan's Radiator Coolant Hose (Upper) can get old and wear out. When this happens, your Radiator Coolant Hose (Upper) can get brittle and crack, allowing coolant to leak out. If an excess amount of coolant leaks out, your vehicle's engine may not receive enough coolant to control the engine's temperature, which may cause overheating in your Nissan. An overheated engine could lead to added repairs and further damage to your vehicle.

Additionally, the Radiator Coolant Hose (Upper) may bloat, meaning the hose swells. If low coolant causes the engine to overheat, it may cause extremely hot coolant to travel through the Radiator Coolant Hose (Upper), causing the rubber material to swell and bloat, potentially causing further cracks and damage to the Radiator Coolant Hose (Upper).

If you believe the Radiator Coolant Hose (Upper) on your vehicle needs to be replaced, 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) breaks.

When inspecting your Radiator Coolant Hose (Upper), look for swelling, cracks, dry-rot, and warping. Check for coolant fluid leaks underneath the vehicle, specifically underneath where the Radiator Coolant Hose (Upper) is located on the vehicle.

Additionally, 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 owner's manual gives an overview of dashboard lights and their meanings.

Is it time to replace the Radiator Coolant Hose (Upper) on your Nissan? Order a genuine replacement Cooling System Radiator Coolant Hose (Upper) for your Nissan 350Z. See the What This Fits tab for more details.

Fits 350Z (2006 - 2010)