Cost example updated October 24, 2026
Brake pads run $150–$300 per axle. A battery runs $150–$450, installed. An alternator runs $400–$900. At the big end, a catalytic converter runs $1,000–$3,000, and a transmission repair runs $1,000–$3,500. The table below gives the typical range for 12 common jobs, with a plain-words line on what each job actually is. Every range is parts plus labor, before tax, for a typical mainstream car, your car and your shop can land higher or lower.
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The price list: 12 common jobs
Read each row against your own shop quote the same way: same job, same unit. Some rows are priced per axle (one pair of wheels, front or rear), some per wheel, and some for the whole job, the unit is in the job name so the comparison stays honest. Ranges are typical ranges across published repair guides (RepairPal, Kelley Blue Book, CarMD, and other national guides checked October 2026); the full source note for every row is in the sources line at the bottom of this page.
| Job | Typical range |
|---|---|
| Brake pads, one axleNew pads that squeeze the discs to slow the car. An axle means one pair of wheels, front or rear. | $150–$300 |
| Brake pads and rotors, one axlePads plus the flat discs they squeeze, replaced together when the discs are worn or warped. | $300–$600 |
| Battery, installedA new 12-volt battery fitted and connected, so the car starts and the electrics run. | $150–$450 |
| AlternatorThe part that charges the battery and powers the electrics while the engine runs. | $400–$900 |
| StarterThe small motor that turns the engine over when you press the button or turn the key. | $300–$800 |
| Timing beltA rubber belt inside the engine that keeps the moving parts in step with each other. | $500–$1,200 |
| Spark plugsSmall plugs that spark to light the fuel in the engine. Most cars have one per cylinder. | $100–$430 |
| Wheel bearing, one wheelThe part that lets one wheel spin smoothly on its hub. A worn one usually hums or growls. | $250–$700 |
| A/C compressorThe pump at the heart of the air conditioning, which pushes the cooling gas around the system. | $800–$1,500 |
| Oxygen sensor, oneA small sensor in the exhaust that tells the engine how much fuel to use. | $150–$525 |
| Catalytic converterA box in the exhaust that cleans up the fumes before they leave the tailpipe. | $1,000–$3,000 |
| Transmission repairFixing the gearbox that sends the engine's power to the wheels. This row covers repairs and rebuilds; a full replacement is a bigger job. | $1,000–$3,500 |
This table covers the jobs with published ranges we could check against more than one guide this week. Jobs without that backing are left out rather than guessed. Two notes on the edges: a full transmission replacement (a whole new or factory-rebuilt gearbox, rather than a repair) usually runs $2,500–$8,000 or more, and some cars run above the top of a row, luxury and European cars, trucks, and cars where the part is hard to reach.
How the list is built
The list is 12 common jobs, each with a typical range, parts plus labor, before tax, for a typical mainstream car. The range for each job comes from published repair guides checked against more than one guide: RepairPal, Kelley Blue Book, CarMD, and other national guides checked October 2026. Jobs without that backing are left out rather than guessed.
Each row is priced in the unit in its job name, so the comparison stays honest: some rows are priced per axle, one pair of wheels, front or rear, some per wheel, and some for the whole job. A full transmission replacement, a whole new or factory-rebuilt gearbox rather than a repair, is a bigger job and usually runs $2,500 to $8,000 or more. Some cars run above the top of a row: luxury and European cars, trucks, and cars where the part is hard to reach.
Every repair bill is two things added together: the replacement part, and the mechanic time. Some jobs are mostly parts, a catalytic converter is expensive because of the metals inside it. Others are mostly labor, a timing belt is a modest part, but reaching it takes hours. When a quote looks high, checking which half is doing the work tells you why. A shop quote is usually broken into parts, labor, a diagnostic fee, shop fees, and tax, added on top in most places.
What moves a job's price
Parts vs. labor. Every repair bill is two things added together: the replacement part, and the mechanic's time. Some jobs are mostly parts, a catalytic converter is expensive because of the metals inside it. Others are mostly labor, a timing belt is a modest part, but reaching it takes hours. When a quote looks high, checking which half is doing the work tells you why.
The car. Parts for a small, common car are made in huge numbers and cost less. Parts for a bigger car, a luxury car, or a European car usually cost more, and the job can take longer if the part is tucked away. The same job name can therefore carry a very different price on two different cars.
The shop's hourly rate. Shops charge by the hour for labor, and hourly rates differ by shop type and by city. Dealers often charge higher hourly rates than independent shops, and independent shops often charge less, that is a price difference between shop types, stated plainly, not a verdict on either one. Rates also differ by city, so a quote in one city will not match a quote in another.
The part chosen. A part made by the car's own maker (often called original or OEM) usually costs more than a part made by another company (often called aftermarket). Both are sold for the same job, and the choice moves the parts line of the quote.
How to read a shop quote
A shop quote is usually broken into a few lines. Here is what each line means, so you can follow your own quote line by line:
- Parts: the replacement piece or pieces, named one by one, with a price each.
- Labor: the mechanic's time, usually shown as hours multiplied by the shop's hourly rate.
- Diagnostic fee: a charge for finding the problem, the testing and scanning time before any repair. Some shops count it toward the repair if the work goes ahead; some do not.
- Shop fees: small charges for supplies, fluids, and disposing of old parts.
- Tax: added on top in most places, and not always included in the headline total.
Three things worth checking on any quote: first, whether the total includes tax and fees or has them added later; second, whether the job is priced per wheel, per axle, or for the whole car, so you compare like with like; third, whether related parts are included, a timing belt job, for example, sometimes includes the water pump (the part that circulates the engine's coolant) because the same labor reaches both. This page gives you the typical ranges to read a quote against. It does not say whether any particular quote is right for your car, that depends on your car, your shop, and what the quote actually includes. If the same defect keeps coming back after repeated repairs, the cost question changes from the price of one job to the lemon question: see what a lemon really costs.
Calculation transparency
Scope. Twelve common jobs, job by job, in plain words, so a shop quote can be read line by line. Every range is parts plus labor, before tax, for a typical mainstream car; your car and your shop can land higher or lower.
Rules and time period. Ranges are typical ranges across published repair guides, RepairPal, Kelley Blue Book, CarMD, and other national guides checked October 2026, with the full source note for every row in the sources line at the bottom of this page. Per-row published bands are listed there, job by job.
Scope and limitations. Educational estimate only. This page gives the typical ranges to read a quote against. It does not say whether any particular quote is right for your car; that depends on your car, your shop, and what the quote actually includes. Tax is added on top in most places and is not always included in the headline total. If the same defect keeps coming back after repeated repairs, the cost question changes from the price of one job to the lemon question. Insurance quotes, gas prices, and local rates vary by driver and address. Get a real quote for the same car, coverage, and loan before you decide.
Source links checked November 6, 2026. Figures: Sources, checked October 2026: RepairPal national estimates as reported by AutoPom and other guides; Kelley Blue Book average vehicle repair costs; CarMD 2025 averages; and national repair-cost guides, Blue Rose Auto, TemplateVault, ProCarManuals, Rohnert Park Transmission, FlexAuto. Per-row published bands are in the sources line at the bottom of this page. The RepairPal, Kelley Blue Book, CarMD, Blue Rose Auto, TemplateVault, Rohnert Park Transmission, FlexAuto, and Urbs Garage figures are named only, not linked.
Primary sources: ProCarManuals service cost estimator; AutoPom auto repair costs. How the numbers are calculated is written down on the methodology page, and every source is listed on the sources page.
Definitions
Parts. The replacement piece or pieces, named one by one on a quote, with a price each.
Labor. The mechanic time, usually shown as hours multiplied by the shop hourly rate.
Diagnostic fee. A charge for finding the problem, the testing and scanning time before any repair. Some shops count it toward the repair if the work goes ahead; some do not.
Shop fees. Small charges for supplies, fluids, and disposing of old parts.
Axle. One pair of wheels, front or rear. Brake pads are priced per axle on this page.
OEM. A part made by the car own maker, often called original. An OEM part usually costs more than a part made by another company.
Aftermarket. A part made by another company, not the car own maker. Both are sold for the same job, and the choice moves the parts line of the quote.
Transmission repair. Fixing the gearbox that sends the engine power to the wheels. This row covers repairs and rebuilds; a full replacement is a bigger job, usually $2,500 to $8,000 or more.
Tax. Added on top in most places, and not always included in the headline total. Many published repair ranges, including the ones on this page, are before tax.
Questions people actually ask
How much do common car repairs cost?
It depends on the job. Small jobs like brake pads or a battery usually run a few hundred dollars, while big jobs like a catalytic converter or a transmission repair usually run into the thousands. The table at the top of this page gives the typical range for 12 common jobs.
Why does the same repair cost more on some cars than others?
Three things move the price most: the part itself, how long the job takes, and the shop's hourly labor rate. Bigger, luxury, and European cars usually need pricier parts and more labor time, so the same job can cost more than it does on a small, common car.
What is the difference between parts and labor on a shop quote?
Parts is what you pay for the replacement piece itself. Labor is what you pay for the mechanic's time, usually billed by the hour. A quote should list both separately, plus any fees and tax, so you can see where the total comes from.
Does a shop quote include tax?
Not always. Many published repair ranges, including the ones on this page, are before tax. Ask whether the total on your quote includes tax and fees, so you are comparing the same kind of total.
Which jobs cost the most?
At the big end, a catalytic converter runs $1,000 to $3,000, and a transmission repair runs $1,000 to $3,500. A full transmission replacement, a whole new or factory-rebuilt gearbox rather than a repair, usually runs $2,500 to $8,000 or more. Most common jobs run a few hundred dollars; the big ones run into the thousands.
Related: See whether an extended car warranty is worth it for the big bills.
Related: See how much car maintenance costs per year, the routine side of the same budget.
Run your own numbers
Repair bills are one part of what a car costs to own. The calculator works out the full five-year cost of a car, and how much car insurance costs covers the other big recurring bill. Shopping used? The true cost of a used car runs the same math for a first car, and new vs. used compares the two paths side by side.
Sources, checked October 2026: RepairPal national estimates as reported by AutoPom and other guides; Kelley Blue Book average vehicle repair costs; CarMD 2025 averages; and national repair-cost guides (Blue Rose Auto, TemplateVault, ProCarManuals, Rohnert Park Transmission, FlexAuto). Per-row published bands: brake pads $150–$250 (ProCarManuals) and $150–$400 (Blue Rose Auto); brake pads and rotors $300–$500 (ProCarManuals) and $250–$600 (Blue Rose Auto); battery $150–$450 (Blue Rose Auto) and $170–$320 (ProCarManuals); alternator $400–$900 (TemplateVault) and $450–$800 (ProCarManuals); starter $300–$700 (TemplateVault) and $565–$796 (RepairPal); timing belt $500–$1,200 (TemplateVault) and $500–$1,000 (Blue Rose Auto); spark plugs $100–$430 (Blue Rose Auto) and $80–$400 (ProCarManuals, by engine size); wheel bearing $250–$700 (TemplateVault) and $280–$500 (ProCarManuals); A/C compressor $800–$1,500 (ProCarManuals) and $750–$1,500 (Blue Rose Auto); oxygen sensor $150–$525 (Blue Rose Auto), CarMD 2025 average $287; catalytic converter $1,000–$3,000 (TemplateVault) and $1,300–$3,500 (Blue Rose Auto); transmission repair $1,500–$3,500 rebuild (Rohnert Park Transmission, FlexAuto) and $700–$3,500 overall (Urbs Garage). All ranges are parts plus labor before tax, for typical mainstream cars. Prices vary by car, part choice, shop, and city.
Related: Facing one big bill? See the repair bill threshold: should you fix your car or buy a new one.
Related: Priced the job? See how much to save each month so the next repair lands on savings.