Your Nissan relies on the cooling system to ensure your vehicle doesnt overheat. And your vehicles cooling system relies on a quality, functioning Radiator Coolant Hose (Upper) to work like it should. As the coolant in your Nissan goes through the radiator and coolant system to the engine, it travels through a Radiator Coolant Hose (Upper). Its important your Radiator Coolant Hose (Upper) is free from damage, leaks, cracks, or bloating that could cause more damage to your Nissan.
Over time, the rubber in your vehicles Radiator Coolant Hose (Upper) can get worn out. When this happens, your Radiator Coolant Hose (Upper) can get brittle and crack, causing coolant to leak out. If too much coolant leaks out, your vehicles engine may not receive enough coolant to control the engines temperature, potentially causing your Nissan to overheat. An overheated engine could lead to additional repairs and even damage to the vehicle.
Also, the Radiator Coolant Hose (Upper) may bloat, which means the hose swells up. If low coolant causes the engine to overheat, it could cause intensely heated coolant to pass through the hose, making the rubber in the hose bloat and swell, likely causing additional damage and cracks to the Radiator Coolant Hose (Upper).
If you believe a Radiator Coolant Hose (Upper) on your Nissan needs to be exchanged, a visual inspection is often a good place to start. When checking the coolant system, always make sure the engine and coolant system are cooled down completely, as the cooling system is pressurized, and heated coolant can spray if something happens to the Radiator Coolant Hose (Upper).
When checking out the Radiator Coolant Hose (Upper), look for dry-rot, cracks, swelling, or warping. Check for coolant fluid leaks underneath the vehicle, specifically where the Radiator Coolant Hose (Upper) attaches to the vehicle.
Additionally, check the dashboard if you feel you have a bad Radiator Coolant Hose (Upper). Check if the Low Coolant light is illuminated or if the temperature gauge is displaying that your engine is running hot. Your Nissan owners manual provides an overview of the different 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 Frontier 2005-2019, Nissan Xterra 2005-2015, and Nissan Pathfinder 2005-2008. See the What This Fits tab for more details.
HOSE-RADIATOR,UPPER
Fits Frontier, Pathfinder, Xterra