How Much Do Common Car Repairs Cost?
DIY vs shop prices for the 10 most common vehicle repairs. These same figures feed the in-app repair cost calculator and your maintenance schedule, so you always know what a fair shop price looks like — and what you can save by doing it yourself.
The figures below are AI-generated national-average sample estimates. Actual costs vary by vehicle, location, and parts quality. For exact estimates tailored to your car, subscribe to QuackAuto.
National repair cost estimator
Pick a repair to see a national-average cost range. These are general figures compiled from parts-retail and independent-shop data — your actual cost will vary by vehicle, location, and parts quality.
National-average sample estimate. Actual costs vary by vehicle, location, and parts quality. For an estimate tailored to your specific make, model, and mileage, see QuackAuto plans.
Full guide: Alternator Repair & Replacement — signs, tools, steps, and a fair-price check.
| Repair | DIY (parts) | Shop (total) | Est. savings |
|---|---|---|---|
| Oil & Filter Change Fluids & Filters | $40–$60 | $65–$105 | $40 |
| Front Brake Pad Replacement Brakes | $55–$80 | $250–$400 | $255 |
| Car Battery Replacement Electrical | $160–$190 | $250–$320 | $110 |
| Tire Rotation Tires & Wheels | Free | $40–$65 | $50 |
| Engine Air Filter Replacement Fluids & Filters | $30–$40 | $65–$90 | $45 |
| Spark Plug Replacement Engine | $40–$65 | $170–$230 | $140 |
| Front Brake Rotor Replacement Brakes | $90–$130 | $380–$500 | $340 |
| Alternator Repair & Replacement Electrical | $180–$230 | $500–$640 | $380 |
| Cabin Air Filter Replacement Fluids & Filters | $20–$30 | $55–$85 | $45 |
| Coolant Flush Cooling | $30–$50 | $130–$190 | $115 |
| Radiator Flush Cooling | $30–$50 | $130–$190 | $115 |
| Transmission Replacement Transmission | $1800–$3800 | $3200–$8200 | $2900 |
| Engine Replacement Engine | $2300–$4400 | $4400–$8200 | $2500 |
| Timing Belt & Water Pump Replacement Engine | $190–$440 | $500–$1300 | $560 |
Parts vs. labor: where the money goes
A shop bill has two parts: the parts themselves and the labor to install them. The parts cost roughly the same whether you buy them at the counter or the shop does — the difference is labor, charged at a national average of about $80–$150 per hour at independent shops (dealers run higher). That's why a $65 set of brake pads becomes a $320 shop bill.
Parts
The physical components — pads, filters, a battery, an alternator. You pay the same (or less) buying them at an auto parts store. DIY means you pay parts only, with no markup or disposal fee.
Labor
The shop's time to do the job, billed at an hourly rate. A 1-hour brake job at $120/hr adds $120 to the parts cost — plus shop markup. This is the slice DIY eliminates entirely.
Browse repairs by category
Each repair has a full guide with symptoms, tools, step-by-step instructions, and a fair-price check so you know when a shop quote is too high.
Fluids & Filters
Brakes
Electrical
Tires & Wheels
Engine
Frequently asked questions
How much does a brake job cost?
A front brake pad replacement costs about $55–$80 in parts if you do it yourself, versus $250–$400 at an independent shop. Adding front rotors brings the DIY total to roughly $145–$210 and the shop total to $630–$900.
Is it cheaper to do car repairs yourself?
DIY repairs save the labor and markup that shops charge — typically 60–80% of the total bill. An oil change costs about $45 in parts at home versus $85 at a shop; a brake job can save $250 or more per axle.
What are the easiest car repairs to do at home?
Oil changes, air filter and cabin air filter swaps, battery replacement, and tire rotation require minimal tools and no lifting beyond a basic jack. These four services alone can save $120–$250 per year versus shop pricing.
Sources
Cost estimates and maintenance intervals on this page are compiled from the following publicly available sources. Click through to verify or explore further.
- RepairPal — Repair Cost Estimator
- YourMechanic — Repair Services & Guides
- AutoZone — Auto Parts Pricing
- Advance Auto Parts — Auto Parts Pricing
- O'Reilly Auto Parts — Auto Parts Pricing
- NAPA Auto Parts — Auto Parts Pricing
- AAA — Car Maintenance & Repair
- Edmunds — Car Maintenance Guides
- Consumer Reports — Car Maintenance
- Car and Driver — Car Maintenance