Your Nissans motor depends on various complicated, connected parts that support the signature Nissan ride you know and love. Many components connect through a network of belts, one of which is called the Serpentine Belt.

Your Nissans Serpentine Belt is a strong, continual belt that transmits power through and to the alternator, power steering pump, car A/C compressor, and, in some cases, water pump. Some people refer to the Serpentine Belt as a fan or accessory belt because it powers your Nissans peripheral devices. However, that simple reference doesnt make it any less important.

Serpentine Belts are usually made of ultra-sturdy rubber engineered to withstand the friction and heat involved in transporting power from one engine component to the other. But, like all good things, even Serpentine Belts dont last forever!

With age, Serpentine Belts can fray or crack or they can malfunction if they become soaked due to oil or coolant leaks. Also, they may lose tension, lack alignment, or slip because of malfunctioning tensioning systems, which may require replacing both the Serpentine Belt and the tensioner, or re-adjusting the belt, depending on its condition. Common signs of Serpentine Belt issues include: rattling or squealing sounds coming from the engine, lackluster A/C or power steering performance, engine overheating, and visible cracks or wear on the belt.

Typically, your Nissan Serpentine Belt can last many thousands of miles, but its life can be cut short due to lack of maintenance, oil leaks, and other issues. You should inspect your Serpentine Belt any time you change the oil, or get a professional opinion from one of the Nissan experts at a service center near you.

The process of replacing your Nissan Serpentine Belt depends on the type of tensioner youre dealing with. Accordingly, you should check your Nissan owners manual before attempting any part replacements at home.

Unsurprisingly, youll need a Serpentine Belt replacement that fits your Nissan model and year, and an adequate belt tensioner. If your Nissan has a hydraulic or manual tensioner mechanism, visiting your nearest Nissan service center is advisable.

When youre prepared to begin, take a photo of your Serpentine Belts current positioning and of how it intertwines with other engine components. Then, detach the tensioner using a ratchet and gently unwind the Serpentine Belt, ensuring not to mess with any accessories or pulleys!

Once the old Serpentine Belt is out, check it for signs of oil leaks, tears, and wear to uncover any underlying issues that are not Serpentine Belt-specific. Thread the new Serpentine Belt back into place and release the tensioner, using a wrench to tighten it to the appropriate level. Finally, turn your vehicle on and let the engine idle while you observe the new belts operation to ensure it is installed correctly.

Whether you choose to DIY your Nissan Serpentine Belt replacement or get professional replacement services at your local Nissan service center, ensuring proper fitment of any replacement parts is essential. Buy an authentic Serpentine Belt replacement made-to-fit your Nissan model and year directly from the manufacturer itself! Purchase a new Nissan Serpentine Belt guaranteed to fit your Nissan 350Z 2003-2006 and Nissan Pathfinder 2001-2004. See the What This Fits tab for more details.

Fits 350Z (2003 - 2010)