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Fuel Injector O-Rings Replacement Cost Estimate

Worried you might overpay for your fuel injector o-rings replacement? Use Jerry's GarageGuard to get fair cost estimate for your fuel injector o-rings replacement.
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John Davis
Expert Automotive Writer
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Reviewed by Kathleen Flear, Director of Content
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Edited by Jessica Barrett, Senior Car & Insurance Editor

How much does a fuel injector O-ring replacement cost?

Depending on your car’s make, model, and year, replacing your fuel injector O-rings can approximately $150-$400.
How long does it take to replace your fuel injector O-rings? In general, this service takes fewer than .25-1 hours to complete. A certified mechanic will remove the defective fuel injector O-rings, replace them with working ones, and ensure there are no leaks. 
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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.

What parts do you need for a fuel injector O-ring replacement, and how much do they cost?

All you need for a fuel injector O-ring replacement are new
fuel injector O-rings
. They typically cost between $150 and $400. 
If you need to purchase the part yourself, we recommend purchasing your fuel injector O-ring at at a local auto parts store like AutoZone, Advance Auto Parts, and O'Reilly Auto Parts, or an online retailers like Amazon and RockAuto. Three trusted brands we recommend are Fel-Pro, Dorman, and ACDelco. However, like price, recommended brands may also vary depending on your vehicle’s specific year, make, and model.
You can purchase fuel injector O-rings at auto parts shops like NAPA Auto Parts, Advance Auto Parts or AutoZone. You can also find them online on Amazon or RockAuto. Check your vehicle’s owner's manual for the specifics of your fuel injector O-rings.
Because fuel injector O-rings come in a various sizes, it’s generally recommended that you buy OEM parts for your O-ring replacement. Overly large O-rings can damage your injection systems during the installation process.

Where can I get my fuel injector O-ring replaced?

Finding the right place to get your timing belt replaced can be tricky, especially if you don’t have a go-to mechanic. Luckily, Jerry's
GarageGuard™
can help you compare costs from over 2,500 vetted repair shops in the US. 
Jerry's GarageGuard™ compares fair price estimates* from each shop using their real hourly labor rate. With GarageGuard™, you can find out if you’ll need to budget for diagnostic fees (and if it’s included in the service cost), and you’ll receive real reviews to help you choose the best service.
Check out some of our vetted shops below and download the app to compare car repair quotes in your area.
174 Reviews
RepairSmith - Greater Los Angeles

Fuel Injector O-Rings Replacement Cost
Fair Cost Estimate for This Shop
$35
(Parts - $6, Labor - $29)
181 Reviews
Wrench Inc. - DEN

Fuel Injector O-Rings Replacement Cost
Fair Cost Estimate for This Shop
$37
(Parts - $6, Labor - $31)
Shop Diagnostic Fee
(Included in service charges)
$150
174 Reviews
Yoo's Auto Service & Collision
address
189 W Duncannon Ave, Philadelphia, PA
Fuel Injector O-Rings Replacement Cost
Fair Cost Estimate for This Shop
$27
(Parts - $6, Labor - $21)
Shop Diagnostic Fee
(Included in service charges)
$100
192 Reviews
Metro Auto Repair LLC.
address
769 S 3rd Ave, Mt. Vernon, NY
Fuel Injector O-Rings Replacement Cost
Fair Cost Estimate for This Shop
$31
(Parts - $6, Labor - $25)
Shop Diagnostic Fee
(Included in service charges)
$50
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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 fuel injector O-rings?

When replacing fuel injector O-rings, a mechanic will normally complete the following steps:
  • Open the hood and disconnect the battery
  • Remove the defective O-rings
  • Install new O-rings
  • Reconnect the battery and start the engine
  • Verify there are no fuel leaks and make sure everything is running properly

What happens if I don’t replace my fuel injector O-rings?

If you don’t replace your bad fuel injector O-rings, your fuel could begin to leak. And that’s never a good thing. If a leak comes into contact with a heat source, it might create an explosion or fire. This heat source could be as basic as a tiny spark or a warm surface.
You should replace leaking fuel injector O-rings as soon as possible.

What is a fuel injector O-ring replacement?

Fuel injector O-rings are rubber gaskets that seal the injectors to the rest of your engine's cylinders and keep fuel from leaking out. During a fuel injector O-ring replacement service, a mechanic will remove the defective O-rings, replace them with new injector O-ring seals, and ensure there are no leaks in your fuel system.

When should I replace the fuel injector O-rings on my car?

There are a few signs to look out for that will let you know your fuel injector O-ring seals need replacing:
  • The engine is leaking fuel
  • Your car is experiencing engine misfires
  • Your car pauses when accelerating (otherwise known as a rough idle)

How often should I replace my fuel injector O-rings?

Depending on your car’s year, make, and model, you may need to replace your fuel injector O-rings every 50,000-100,000 miles. You may check with your vehicle manufacturer to 

Can I replace my fuel injector O-rings myself?

Unless you’re a master of DIY car repair, replacing your fuel injector O-rings is widely considered a difficult task for most non-professionals. For many drivers, it’s best to let a professional replace your vehicle’s injector seals. 
If you’re confident in your car repair skills, you can search Amazon, Autozone, or another online store for a fuel injector O-ring kit. 

FAQs

O-rings can fail if they are subjected to too much (or too little) compression caused by a faulty gland design in the car. Other risk factors include improper O-ring installation and inadequate O-ring lubrication.
Each fuel injector has two O-rings, with twenty-four injectors for every engine.
Vaseline and O-rings are not a good match. O-rings are usually made of rubber, and petroleum-based products like Vaseline can make rubber swell, stretch, and shrink. Mechanics tend to recommend silicone grease instead.

Meet Our Experts

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John Davis
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Car Expert
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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.
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Jessica Barrett
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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.
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Kathleen Flear
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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.