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Updated on Jan 31, 2024

John Davis

Expert Automotive Writer

Reviewed by Kathleen Flear, Director of Content

Edited by Jessica Barrett, Senior Car & Insurance Editor

What's on this page?

How much does it cost to replace an instrument voltage regulator?
Where can I get my instrument voltage regulator replaced?
How will a mechanic replace my instrument voltage regulator?
What happens if I don’t replace my instrument voltage regulator?
What is an instrument voltage regulator?
Can I replace my instrument voltage regulator myself?
FAQs
Meet Our Experts

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How much does it cost to replace an instrument voltage regulator?

The average cost for an instrument voltage regulator replacement is $281, with $80 for parts and labor costs at $202. However, the cost will depend on your vehicle.

How long does it take to replace an instrument voltage regulator? When completed by a certified mechanic, the job typically takes around 1.7 hours. Your mechanic will complete a preliminary inspection and then follow through with a replacement if necessary.

Here’s an overview of instrument voltage regulator replacement costs for different vehicles:

Estimate Date	Customer	Car	Fair Cost Estimate	Parts Cost	Labor Cost	Labor Time
April 21, 2024	Ray, 28 Minneapolis, MN	Jeep Compass	$270	$75	$195	1.5 Hours
April 16, 2024	Shane, 36 Chicago, IL	Hyundai Sonata	$251	$75	$176	1.5 Hours
April 14, 2024	Jason, 39 Reno, NV	Saab 45172	$272	$75	$197	1.5 Hours
April 11, 2024	Elmer, 44 Oklahoma City, OK	Jaguar XK	$274	$75	$199	1.5 Hours
April 11, 2024	Herbert, 44 Oklahoma City, OK	Plymouth Neon	$274	$75	$199	1.5 Hours

How did we estimate these prices?
Jerry's experts researched and collected data from 2500+ real repair shops in all 50 states in the US, including everything from the total cost of repair services to the hourly labor cost for mechanic labor in each shop. We combined that data with our expert database of hundreds of real repair jobs, thousands of real cars, millions of real car part prices in order to best estimate the cost of each repair service. Our labor cost estimate is calculated by taking the average hourly labor rate for a certified mechanic in the US, times the number of hours it takes on average to complete a repair. We recommend you compare your local shops with Jerry and contact those shops directly to get final pricing for your vehicle.

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What parts do I need for my instrument voltage regulator replacement?

An instrument voltage regulator replacement requires minimal parts to complete:

Instrument voltage regulator: The instrument voltage regulator provides power to the cluster gauges so they provide accurate readings. It is the main component in the replacement, and a replacement will usually cost you around $30 to $60.

Instrument light bulbs: The instrument light bulbs provide light to the gauge needs and the cluster. You don’t always need to replace them with your instrument voltage regulator, but it can be a good idea while you already have the cluster disassembled. You can purchase bulbs for around $10.

Some reliable instrument voltage regulator brands include Standard Motor Parts (SMP), ACDelco and Wells vehicle Electronics. Philips, Sylvania and GE lighting are popular instrument light bulb brands. These can be purchased from auto parts stores like AutoZone, Advance Auto Parts, O'Reilly Auto Parts or online from websites like Amazon or eBay.

Where can I buy parts for my instrument voltage regulator replacement?

Popular voltage regulator brands include Standard Motor Parts (SMP), ACDelco and Wells vehicle Electronics. For instrument panel lighting, Philips, Sylvania and GE lighting are reputable brands. These can be purchased from auto parts stores like AutoZone, Advance Auto Parts, O'Reilly Auto Parts or online from websites like Amazon or eBay.

Should I buy OEM or aftermarket parts?

When it comes to your instrument voltage regulator, aftermarket parts might be the way to go. Since most modern vehicles don’t have instrument voltage regulators, OEM parts for your vehicle might be difficult to find. On the other hand, aftermarket parts are readily available and will get the job done. Just be sure to do your research to find parts that work with your vehicle.

Find out what parts are recommended for my car

Where can I get my instrument voltage regulator replaced?

Finding the right auto repair shop for your instrument voltage regulator replacement can be difficult, especially if you don’t have a trusted mechanic. Luckily, Jerry’s

GarageGuard™

is here to help. Jerry's GarageGuard™ will find the best mechanic for the job by comparing costs from over 2,500 vetted auto repair shops in the US.

Jerry's GarageGuard™ will use auto shops’ real hourly labor rates to compare fair price estimates* and find out if diagnostic fees are included in the service cost. You can even see reviews from real customers to help you choose the best service around.

Check out some of our vetted shops below and download the app to compare car repair quotes in your area.

188 Reviews

Tires Unlimited / Stress-Free Auto Care - San Jose

3744 Stevens Creek Blvd, San Jose, CA

Instrument Voltage Regulator Replacement Cost

Fair Cost Estimate for This Shop

$263

(Parts - $75, Labor - $188)

Shop Diagnostic Fee

(Included in service charges)

$225

Compare this shop for free with Jerry (408) 418-2111

175 Reviews

Kevin's Mobile Repair

(Remote Truck Service), Norcross, GA

Instrument Voltage Regulator Replacement Cost

Fair Cost Estimate for This Shop

$203

(Parts - $75, Labor - $128)

Shop Diagnostic Fee

(Included in service charges)

$85

Compare this shop for free with Jerry (770)-595-6687

111 Reviews

Checkered Flag Auto Center

170 Hartford Ave, Queens, NY

Instrument Voltage Regulator Replacement Cost

Fair Cost Estimate for This Shop

$263

(Parts - $75, Labor - $188)

Shop Diagnostic Fee

(Included in service charges)

$140

Compare this shop for free with Jerry (860) 653-7273

157 Reviews

Race 2 Car Service And Repair

640 E Centerville Rd, Garland, TX

Instrument Voltage Regulator Replacement Cost

Fair Cost Estimate for This Shop

$225

(Parts - $75, Labor - $150)

Shop Diagnostic Fee

(Included in service charges)

$100

Compare this shop for free with Jerry (214) 299-9348

How did we vet these shops?
Jerry experts researched 2500+ real repair shops across the US. We talked to real shop customers, and analyzed both real shop pricing data and thousands of real customer reviews from each shop to verify them individually. We do not partner with the shops listed above, and our analysis is always unbiased.

How will a mechanic replace my instrument voltage regulator?

To complete an instrument voltage regulator replacement, a mechanic will perform the following steps:

Preparation: Your mechanic will prepare the necessary tools and disconnect the battery ground cable before beginning the replacement.

Remove parts: Your mechanic will remove the instrument panel and fasteners around the gauge cluster trim and disconnect the speedometer cable and electrical connections.

Remove the instrument gauge cluster: Your mechanic will remove the bolt holding the sensor in place and then remove the failing instrument voltage regulator.

Remove the instrument voltage regulator: Your mechanic will then remove the faulty instrument voltage regulator.

Install the new instrument voltage regulator: At this point, your mechanic will install the new regulator.

Reassemble parts: Your mechanic will reassemble any removed parts, including the gauge cluster.

What happens if I don’t replace my instrument voltage regulator?

Failing to replace a faulty instrument voltage regulator will result in inaccurate readings from your gauge cluster regarding the following:

Speed: Not only is not knowing your speed dangerous, but you can also be ticketed for driving without a functioning speedometer.

Fuel level: Without an accurate fuel level reading, you won’t know when you need to fill up your gas tank—which could leave you stranded with no fuel.

Engine temperature: If your engine temperature is too high, your engine could overheat and cause costly damage.

What is an instrument voltage regulator?

Instrument voltage regulators ensure that your

gauge cluster

displays accurate information, and they are vital for monitoring your speed, fuel level, and engine temperature.

Your car's instrument gauges rely on the application of voltage to a variable resistance sensor. The amount of electrical energy that moves through the sensor determines how the needle moves on the gauge. If the voltage is too high or too low, the gauge's reading will be incorrect.

The instrument voltage regulator—sometimes called a voltage limiter or stabilizer—controls the electrical energy sent to the gauges, ensuring that the reading you see is accurate.

Keep in mind: Instrument voltage regulators are not common in modern cars—in fact, if your vehicle was built after 1998, chances are the gauges are computerized, and there is no regulator.

When should I replace the instrument voltage regulator on my car?

If you notice the following symptoms, you likely need to replace your instrument voltage regulator:

Dimming or flickering gauges and warning lights

Inadequate or inconsistent readings

Gauge failure

But be careful: the symptoms of a faulty voltage regulator can also be caused by a bad alternator or alternator voltage regulator, corroded car battery terminals, or failure of other electrical components. Before you conclude that your problems are caused by voltage regulator failure, it’s important to check the other parts of your vehicle’s charging system.

How often should an instrument voltage regulator be replaced?

Instrument voltage regulators are meant to last as long as your vehicle, but like any automotive component, they can experience wear and tear.

You should monitor your vehicle’s instrument cluster and take your vehicle to a mechanic if you notice warning signs of a bad instrument voltage regulator.

Can I replace my instrument voltage regulator myself?

You can complete an instrument cluster voltage regulator replacement at home, but you will need the right tools and experience with DIY auto repair. Working with your car’s electrical system requires special skills.

However, most drivers should take their vehicle to a professional for an instrument voltage regulator replacement.

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FAQs

Where is the instrument voltage regulator located?

Many instrument voltage regulators are located on the back of the instrument gauge cluster.

What are the signs of a bad instrument voltage regulator?

Common symptoms of a bad voltage regulator include:

Dim or flickering gauges

Inadequate or inconsistent readings

Gauge failure

Meet Our Experts

John Davis

Car Expert

Certified mechanic with 10+ years of experience

John Davis is an expert automotive writer and former automotive mechanic. John's work spans multiple categories, and he relishes the opportunity to research a new subject and expand his area of expertise and industry knowledge. To date, John has written more than 200 articles covering car maintenance and care, car advice, how-to guides, and more.

Prior to joining Jerry’s editorial team, John worked as a mechanic and freelance writer, creating content for clients including HotCars and SetPower.

Jessica Barrett

Car Expert

Jessica Barrett is a senior insurance writer and editor with 10 years of experience in the automotive and travel industries. A specialist in car insurance, car loans, and car ownership, Jessica’s mission is to create comprehensive content that car owners can use to manage their costs and improve their lives. As a managing editor for a team of writers and insurance specialists, Jessica has edited over 2,000 articles for Jerry on topics ranging from local insurance shopping tips to refinancing car loans with bad credit.

Before joining Jerry as a senior content editor in 2021, Jessica created visual content for clients such as Expedia, Vivid Seats, Budget Direct Car Insurance, Angie’s List, and HomeAdvisor. Her content was published in Business Insider, Forbes, Apartment Therapy, and the BBC.

Kathleen Flear

Car Expert

Kathleen Flear is an expert insurance writer and editor who heads up Jerry’s editorial team as director of content. Kathleen empowers drivers to make smart car ownership decisions through best-in-class articles on insurance, loans, and maintenance. Prior to joining Jerry in 2021, Kathleen served as managing editor for a team of SEO content marketing professionals at Article-Writing.co and worked as a freelance writer and editor for a range of digital publications, including Chicago Literati magazine and Golden Words. She earned a bachelor’s degree in English language and literature from Queen’s University, and a master’s degree in creative writing and fiction from Sierra Nevada University.

*The price information provided on our car repair webpages is intended for general informational purposes only. Actual prices for car repair services may vary based on various factors, including but not limited to the make and model of your vehicle, the extent of repair required, and the prevailing market conditions. All prices for real repair shops are estimations based on our research only. Therefore, the prices listed on our webpages should not be considered as final quotes or binding offers.