In this article, we’ll explain what alternator pulleys are used for and the symptoms that indicate you may have a problem with your alternator pulley. Keep reading for this information and much more!
What is an alternator pulley?
An alternator pulley is attached to an alternator that allows the ribbed V-shape belt to spin the alternator.
Find out more about timing belts in our article How to lubricate your timing belt.
Which components make up an alternator pulley?
Car alternator pulleys consist of the following components:
- Trapezoidal ribbed belt;
- Two radial support bearings;
- Inner ring with centring hole;
- Gaskets on the front and side of the alternator;
- Protective cover on the front.
What is the purpose of an alternator pulley?
The alternator pulley powers the vehicle’s alternator.
This component is key, as, without it, the alternator would not be able to convert mechanical energy into electrical energy and consequently, the battery would not be charged.
Find out more about your car battery in our article Auto battery: How to change them and which one to choose.
What are the signs of alternator pulley failure?
The tell-tale symptoms of problems with your vehicle’s alternator pulley are:
- Visible wear on the pulley along with rust;
- Timing belt squeaking;
- Damaged bearings.
What does a noisy alternator pulley mean?
Noise coming from near the alternator pulley may indicate damage to the pulley or alternator.
When you hear this type of noise, you should take your car to a manufacturer-approved garage or trusted mechanic to prevent further damage.
KROFtools advises you to carry out preventive maintenance on your car, ensuring it is kept in good condition.
Find out more about preventive car maintenance in our article Preventive maintenance: Everything you need to know.
What care should you take with your alternator pulley?
The following maintenance tips should be followed for alternator pulleys:
- Check your pulley if the battery light comes on on your car instrument panel;
- Check the cable connections to the battery;
- Check your alternator pulley for signs of rust;
- Check the condition of drive belts;
- Switch off electrical accessories when not in use;
- Check your car battery.
Find out more on how to charge your car battery in our article How to charge your car battery: 3 Essential Tips.
Which KROFtools products can you use to remove your car’s alternator pulley?
You can remove the alternator pulley from your car using the following products:
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Alternator Socket M10
Click on the image to find out more about our Alternator Socket M10 (ref.3306).
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Pulley Alternator Socket Set 6PCS
Click on the image to find out more about our Pulley Alternator Socket Set 6PCS (ref.3309).
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Alternator Pulley Set 22PCS
Click on the image to find out more about our Alternator Pulley Set 22PCS (ref.3311).
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Alternator Tool Set 30PCS
Click on the image to find out more about our Alternator Tool Set 30PCS (ref.3312).
How much does an alternator pulley cost?
Alternator pulley prices range from 15 to 100 euros. The price of the part varies depending on the vehicle, manufacturer, and specifications.
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