Serpentine Belts
1985 Nissan Maxima
Nissan 
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Driving All Your Engine Accessories Reliably
Don't compromise with unreliable alternatives when genuine components are within reach. That's where Petro Nissan excels. Serpentine belts drive multiple engine accessories from one continuous loop. They power your alternator, water pump, air conditioning compressor, and power steering pump simultaneously. When serpentine belts snap, several critical systems fail at once.
How Serpentine Belts Transfer Power
Serpentine belts feature ribbed undersides that engage grooves machined into pulleys. They follow complex paths connecting various accessories mounted throughout the engine. Models like the Nissan Altima and Nissan Pathfinder use serpentine belt configurations optimized for their engine layouts. An automatic tensioner maintains constant pressure on the belt as it stretches during use. This single-belt design simplifies maintenance compared to older multiple-belt systems.
What Breaks Down Serpentine Belts
Continuous flexing around multiple pulleys generates heat that hardens rubber material. Ribs wear thin from millions of contacts with pulley grooves over time. Contamination from leaking oil or coolant destroys belt structure almost immediately. Tensioner failure allows excessive slack or creates too much pressure on the belt. Temperature extremes accelerate material breakdown significantly. Generic serpentine belts often crack and split prematurely compared to genuine components. We see these aftermarket options fail thousands of miles before genuine belts would need attention.
When Serpentine Belt Replacement Is Critical
Squealing during acceleration or startup means the belt is slipping on pulleys. Battery warning lights illuminate when the belt can't turn the alternator at proper speed. Overheating occurs if the belt isn't driving the water pump effectively. Inspect for visible cracks, missing pieces, or shiny glazed surfaces. Most serpentine belts last between 60,000 and 100,000 miles under normal driving conditions. Genuine Nissan serpentine belts are designed for your specific accessory arrangement and radiator cooling requirements. They maintain proper tension throughout their service life. Generic versions might fit initially but typically lack the durability genuine parts provide.
With Petro Nissan's extensive inventory, your vehicle will thank you for the genuine care.