Alternator Brush Holder

Critical For Operation

Charging System

Holds the brushes in the alternator in place to maintain electrical contact.

The brush holder keeps the brushes in position within the alternator, ensuring they maintain proper contact with the commutator, allowing the alternator to generate power.

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Typical part cost

$20–$60🔒

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Typical labor cost

$100–$200🔒

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Typically lasts

80,000–150,000 mi

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Or about

4.0–10.0 years

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DIY difficulty

5/10

⚠️ Owners Often Notice

If the Alternator Brush Holder is starting to fail, these are the signs owners most commonly report before it gets worse:

Dim lights

Electrical accessories not working

Dead battery

Battery not charging

Alternator noise

Vehicle won't start