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On average, the cost for a Nissan Sentra Alternator / Serpentine Belt Replacement is $118 with $23 for parts and $95 for labor. Prices may vary depending on your location.
| Car | Service | Estimate | Shop/Dealer Price |
|---|---|---|---|
| 1989 Nissan SentraL4-1.6L | Service typeAlternator / Serpentine Belt Replacement | Estimate$186.35 | Shop/Dealer Price$212.32 - $265.46 |
| 1992 Nissan SentraL4-1.6L | Service typeAlternator / Serpentine Belt Replacement | Estimate$164.35 | Shop/Dealer Price$190.34 - $243.50 |
| 2011 Nissan SentraL4-2.5L | Service typeAlternator / Serpentine Belt Replacement | Estimate$239.21 | Shop/Dealer Price$281.16 - $377.72 |
| 1991 Nissan SentraL4-1.6L | Service typeAlternator / Serpentine Belt Replacement | Estimate$164.35 | Shop/Dealer Price$190.31 - $243.45 |
| 2000 Nissan SentraL4-1.8L | Service typeAlternator / Serpentine Belt Replacement | Estimate$242.27 | Shop/Dealer Price$289.12 - $407.11 |
| 2018 Nissan SentraL4-1.8L | Service typeAlternator / Serpentine Belt Replacement | Estimate$193.99 | Shop/Dealer Price$228.76 - $310.52 |
| 1987 Nissan SentraL4-1.6L | Service typeAlternator / Serpentine Belt Replacement | Estimate$158.09 | Shop/Dealer Price$180.98 - $225.21 |
| 1994 Nissan SentraL4-1.6L | Service typeAlternator / Serpentine Belt Replacement | Estimate$244.15 | Shop/Dealer Price$288.97 - $398.05 |
The alternator is a generator that converts mechanical energy into electrical energy. It uses the revolving motion of a magnetic field around a stationary armature creating electricity which is then stored in the car’s battery and operate electrical functions. The revolutions needed to create the electricity come from the engine’s crankshaft which is connected via a rubber belt. This alternator belt is either a v-belt or a flat ribbed belt more commonly known as a serpentine belt. The alternator belt may solely operate the alternator or it may also drive other items such as the water pump, air conditioning compressor, and the power steering pump. When the belt is loose, frayed or broken, the alternator isn’t able to generate electricity to charge the car battery causing poor operation of electrically powered accessories.
Your mechanic will check the condition of the alternator belt every time the oil is changed. If they notice the belt appears frayed, cracked, or is missing pieces, you should have the belt replaced.
If your alternator belt breaks while you are driving, you may lose electrical power to important systems inside your vehicle or the engine may die. You could be left stranded or in a dangerous situation. Replace the alternator belt as soon as you notice unusual wear.
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