Best Alternator Brush Holders of 2025

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 9, 2025

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Alternator brush holders are essential components of an alternator. They are responsible for holding the brushes in place and maintaining a proper electrical connection between the brushes and the commutator. These brush holders are typically made of high-quality materials to ensure durability and longevity. They come in a variety of sizes and designs to fit different alternator models. In addition, some brush holders may also include features such as built-in voltage regulators, making them even more versatile and useful. Overall, alternator brush holders are crucial components that help to ensure the proper functioning of an alternator, which is essential for powering various electrical systems in a vehicle.

At a Glance: Our Top Picks

Yosoo Alternator Brush Holder Kit Cover #TOP 1
Yosoo Alternator Brush Holder Kit
ftb score rating icon 9.8
Acouto Alternator Brush Holder Rebuild Kit Cover #TOP 2
Acouto Alternator Brush Holder Rebuild Kit
ftb score rating icon 9.7
Rareelectrical Alternator Brush Holder Cover #TOP 3
Rareelectrical Alternator Brush Holder
ftb score rating icon 9.5

Top 10 Alternator Brush Holders

#TOP 1

Yosoo Alternator Brush Holder Kit

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Yosoo Alternator Brush Holder Kit Cover
Alternator Brush Holder Brush Repair Kit, Aluminum Alloy Alternator Brush Holder And Brushes Kit Replacement For Denso 021620?2530 021620?2720

The Yosoo Brush Holder Kit is designed for seamless compatibility with various Denso models, ensuring a perfect fit. Made from durable ABS and aluminum alloy, this kit offers resistance to rust and impact, providing long-lasting performance. You’ll appreciate the stable output voltage, which maintains consistent performance regardless of speed changes. Installation is straightforward, allowing you to replace your old or damaged alternator regulator quickly and easily, saving you time and hassle. With rigorous testing and adherence to original specifications, you can trust this kit to deliver reliable results.

What We Like
Easy installation
Durable materials
Stable performance
Compatible with multiple models
#TOP 2

Acouto Alternator Brush Holder Rebuild Kit

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Acouto Alternator Brush Holder Rebuild Kit Cover
Acouto Alternator Brush Holder Alternator Rebuild Repair Kit Aluminum Alloy for Denso 021620‑2530 021620‑2720, for 27370-42010 27370-75060, 31105 PD1 034, 31105 PR7 A01, 31105 PT0 003

Upgrade your vehicle with the Acouto Brush Holder Kit. Crafted from durable ABS and aluminum alloy, this kit ensures long-lasting reliability. The high-quality manufacturing guarantees stable performance, reducing the need for frequent replacements. The meticulous workmanship offers wear-proof durability for consistent functioning. The easy replacement feature simplifies the installation process, making it a cost-effective solution for your vehicle maintenance needs.

What We Like
Durable Materials
Stable Performance
Cost-effective Solution
#TOP 3

Rareelectrical Alternator Brush Holder

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Rareelectrical Alternator Brush Holder Cover
RAREELECTRICAL New Brush Holder Compatible With Brush Holder Denso Brushes Nippondenso Chrysler Dodge 90-120A 021620-2430 0216202430

The Rareelectrical Alternator Brush Holder is compatible with various brands and models of vehicles. It replaces OEM part numbers 021620-2430 and 0216202430 for Denso 90-120A Alternators, and includes two brushes. The holder is a reliable aftermarket source, computer tested for quality assurance.

What We Like
Compatible with multiple brands and models of vehicles.
Replaces OEM part numbers 021620-2430 and 0216202430 for Denso 90-120A Alternators.
Includes two brushes and is computer tested for quality assurance.
#TOP 4

AYNEFY Alternator Brush Holder Kit

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AYNEFY Alternator Brush Holder Kit Cover
Alternator Brush Holder,Alternator Brushes Kit Alternator Brushes Kit, Aluminum Alloy Alternator Brush Holder Rebuild Kit ,Alternator Brush Holder Alternator Brush Holder Brush Repair Kit Aluminum For

The AYNEFY Brush Holder Kit is an excellent choice for replacing your old or damaged alternator brush holder. It meets original factory standards, ensuring a perfect fit and reliable performance. This kit is designed using professional manufacturing techniques, offering high reliability and stable operation for your vehicle. Moreover, it's compatible with various models, including Denso and others, making it versatile for different applications. With its durable construction, you can expect long-lasting use without the need for frequent replacements, giving you peace of mind and convenience.

What We Like
Direct replacement for old parts
Reliable and stable performance
Compatible with various models
Long-lasting durability
#TOP 5

Yosoo Alternator Brush Holder Kit

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Yosoo Alternator Brush Holder Kit Cover
Alternator Brush Holder Automotive Brush Holder Kit, Solid Aluminum Alloy Alternator Brush Holder Rebuild Kit for Denso 021620-2530 021620-2720, Voltage Regulator Brush Holder Kit

The Yosoo Brush Holder Kit is designed for compatibility with various Denso alternator models, ensuring a perfect fit for your vehicle. Made from high-quality ABS and aluminum alloy, this kit offers exceptional durability, allowing you to rely on it for long-term use without frequent replacements. Its professional construction guarantees stable performance, enhancing your vehicle's charging system efficiency. Plus, installation is a breeze, as it replaces your old or damaged brush holder directly, saving you time and effort while eliminating the need for complex modifications.

What We Like
Wide compatibility
Durable materials
Stable performance
Easy installation
#TOP 6

EVGATSAUTO Alternator Brush Holder Repair Kit

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EVGATSAUTO Alternator Brush Holder Repair Kit Cover
Alternator Brush Holder, Alternator Brush Holder Brush Repair Kit Aluminum Alloy 021620‑2530 021620‑2720

The EVGATSAUTO Brush Holder Kit is a professional repair kit designed for Denso alternators. Made from premium ABS and aluminum alloy, this kit ensures durability and a long service life. It offers a perfect fit for various Denso models, making it a great replacement option for old or damaged brush holders. With high reliability and stable performance, this kit features exquisite workmanship, eliminating the need for frequent replacements. Invest in this kit to enjoy a reliable alternator performance for a long time.

What We Like
Durable Materials
Perfect Fit
High Reliability
#TOP 7

Aramox Alternator Brush Box for Denso 021620?2530 021620?2720

Aramox
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Aramox Alternator Brush Box for Denso 021620?2530 021620?2720 Cover
Alternator Brush Box, Aluminum Alloy Alternator Brush Holder Brush Repair Kit for Denso 021620?2530 021620?2720

The Aramox Alternator Brush Box is a high-quality repair kit designed for Denso Alternators. Made of durable ABS and aluminum alloy materials, this brush holder is built to last with excellent abrasion resistance and strong anti-impact properties. It ensures stable and reliable performance, thanks to its professional craftsmanship and strict quality inspection. With its perfect compatibility, it can easily replace old or damaged brush holders. Installation is a breeze, requiring no additional adjustments or complex tools. Upgrade your alternator with the Aramox Alternator Brush Box for improved performance and longevity.

What We Like
High Quality
Performance Stable
Perfect Replacement
#TOP 8

Keenso Alternator Brushes Rebuild Kit

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Keenso Alternator Brushes Rebuild Kit Cover
Alternator Brushes Rebuild Kit, Alternator Brush Holder Brush Repair Kit Aluminum Alloy for 021620‑2530 021620‑2720

The Keenso Alternator Brushes Rebuild Kit is a premium solution for replacing old or damaged alternator brush holders. Made of high-quality ABS and aluminum alloy material, this kit is wearproof, anti-rust, impact-resistant, and lightweight. With its fine workmanship and stable performance, it ensures reliable operation. The Keenso Brushes Kit is compatible with various models, such as 021620‑2530 and 021620‑2720, making it a versatile option for different alternator brush holder replacements. Its long lifespan and exquisite workmanship make it a durable and cost-effective choice. Say goodbye to frequent replacements and enjoy the convenience of a reliable alternator brush holder.

What We Like
Premium Material
Fine Workmanship
Excellent Replacement
#TOP 9

Gladiator Alternator Brush Holder for Dodge Rams

Gladiator
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Gladiator Alternator Brush Holder for Dodge Rams Cover
New Premium Alternator Brush Holder Complete w/Brushes fits Dodge Rams 07,08,09,10 3.7L 4.7L 5.7L 6.7L Engines F-00M-145-859 39-9107 0124525155 0124525156 AL6450N AL6450X 0-124-525-111 0-124-525-155

The Gladiator Alternator Brush Holder is designed for Dodge Rams from 2007 to 2010, ensuring it meets or exceeds original equipment manufacturer standards for reliability. With a one-year warranty, you can have peace of mind knowing you're covered against defects. This product boasts compatibility with multiple engine sizes, making it versatile for various models. Its high-quality construction ensures durability and optimal performance, helping you maintain your vehicle's electrical system efficiently. By choosing this brush holder, you ensure a seamless fit and functionality, enhancing your driving experience.

What We Like
Meets OEM specifications
One-year warranty
Compatible with multiple engines
Durable construction
#TOP 10

Denso Alternator Brush Holder Kit by Bediffer

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Denso Alternator Brush Holder Kit by Bediffer Cover
Alternator Brushes, High Performance Brush Holder Rebuild Kit Rustproof Heat Resistant for Denso 021620-2530 021620-2720

The Bediffer Alternator Brush Kit is designed to fit various Denso models, ensuring compatibility with your vehicle. With professional manufacturing technology, this kit offers reliable and stable performance, giving you peace of mind during use. If your alternator brush holder is worn out or damaged, this kit provides an excellent replacement that meets original factory standards, making installation straightforward. Additionally, the high-quality craftsmanship means that you won't have to replace it frequently, saving you time and money in the long run.

What We Like
High compatibility with Denso models
Reliable and stable performance
Direct replacement for damaged parts
Long-lasting durability
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What happens when alternator brushes are bad?

When alternator brushes are worn or damaged, it can result in issues such as the ignition warning light not coming on, not going out, or staying dim. It is important to check for the cause of the problem and perform testing to diagnose the alternator's output.

2. What is the purpose of the brushes in an alternator?

The brushes in an alternator serve as electrical contacts that help conduct electricity from the alternator or generator to the components that require power. They facilitate the transfer of current as they spin with the rotor of the alternator, ensuring the proper flow of electricity.

3. Do modern alternators have brushes?

Yes, modern alternators still incorporate brushes as part of their design. These brushes, along with other components like the voltage regulator and slip rings, play a crucial role in the operation of the alternator. The brushes provide power supply to the rotor windings and facilitate the charging process.

4. What is the symptom if an alternator has worn out carbon brush?

One symptom of worn-out carbon brushes in an alternator is a loss of power or inconsistent power delivery. If the tool or equipment starts cutting out during use, it is a clear indication that the carbon brushes have worn away and need to be replaced.

5. Can you change the brushes on an alternator?

Yes, it is possible to change the brushes on an alternator. Checking and replacing the brushes is a regular maintenance process, especially after dismantling the alternator or voltage regulator or when there are issues with the charging system. The brushes transmit power supply to the rotor windings.

6. Do modern alternators charge at idle?

Yes, modern alternators are designed to charge the battery while the engine is running, even at idle. As long as the engine is running, the alternator will start to charge the battery and provide power to the electrical system of the vehicle.

7. What shortens the life of alternator?

Several factors can shorten the lifespan of an alternator. Excessive energy demands from the battery and electrical system can cause the alternator to charge at maximum capacity, putting strain on its components. Additionally, decreased output from failed or corroded sections of the rotor can also contribute to the alternator not functioning properly, requiring repair or replacement.

Editor's Notes

During our alternator brush holder research, we found 24 alternator brush holder products and shortlisted 10 quality products. We collected and analyzed 3,466 customer reviews through our big data system to write the alternator brush holders list. We found that most customers choose alternator brush holders with an average price of $8.26.

The alternator brush holders are available for purchase. We have researched hundreds of brands and picked the top brands of alternator brush holders, including Yosoo, Acouto, Rareelectrical, AYNEFY, EVGATSAUTO. The seller of top 1 product has received honest feedback from 579 consumers with an average rating of 4.6.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.