How much should I pay someone to change my alternator?

Typically, replacing an alternator on a standard passenger car costs roughly $300–$600 total, including parts and labor. The exact price depends on whether you use a remanufactured unit, a new aftermarket or OEM part, your vehicle’s make/model, and the labor rate in your area.

What factors influence price

The final bill is shaped by several variables beyond the base parts, including the type of alternator you choose, the vehicle, and the shop you select.

• Type and quality of replacement: remanufactured/aftermarket units, new aftermarket parts, or OEM (factory) new units.


• Vehicle make and model: some engines are easier to access, and some brands require specialized parts or tools.


• Labor rate and shop type: independent repair shops typically charge less than a dealership, and hourly rates vary by region.


• Additional components or services: serpentine belt, tensioner pulley, battery testing, or wiring harness work may be needed.


• Warranty and service package: longer warranties can add to the upfront cost but offer long-term savings.


• Taxes, environmental fees and disposal charges: these can add a small amount to the final invoice.

Understanding these factors can help you compare quotes and avoid surprises when the bill arrives.

Typical cost ranges by scenario

Here are common price ranges you can expect for different replacement packages on conventional passenger cars.

Remanufactured or aftermarket unit

For most cars, choosing a remanufactured or aftermarket alternator keeps costs lower while providing reliable performance.

• Parts: roughly $100–$250


• Labor: about 1–2 hours at typical shop rates of $80–$120 per hour


• Total: approximately $250–$500 (more in high-cost areas or for older cars with unusual setups)

In many markets, remanufactured units represent the best value for the majority of drivers, balancing cost with reliability.

New OEM or higher-end aftermarket

For vehicles where OEM parts or high-end equivalents are recommended, expect higher parts costs.

• Parts: roughly $150–$500


• Labor: about 1–2.5 hours at $100–$150 per hour


• Total: approximately $350–$900

This option is common for newer models or when the dealership prefers original equipment parts for warranty reasons.

Luxury or European models / dealer service

On luxury brands or complex European models, prices can climb significantly due to part availability and longer labor times.

• Parts: roughly $500–$1,200


• Labor: $150–$350


• Total: $700–$1,550 or more

Some models may exceed these ranges, especially when it requires specialized tools or programming of vehicle modules.

Ways to save money

Smart shopping can reduce the overall cost without compromising reliability.

• Get quotes from multiple shops to compare pricing and turnaround times.


• Ask for a price breakdown that separates parts and labor and specifies the type of alternator.


• Consider remanufactured or rebuilt units from reputable suppliers, with a solid warranty.


• If the belt, tensioner, or battery is due for replacement, have these items itemized and separated from the alternator work.


• Ask about promotions, coupons, or bundled services (e.g., battery test included).


• Only attempt DIY replacement if you have the right tools and experience; otherwise, professional service is recommended for safety and warranty reasons.

With careful planning, you can secure a reliable replacement without overspending while maintaining your vehicle’s warranty and safety.

Summary

Alternator replacement costs vary widely, but for a typical passenger car you should budget roughly $300–$600 total, with remanufactured units usually cheaper than OEM replacements. The specific price depends on the part type, vehicle complexity, labor rates, and location. Always compare multiple quotes, ensure you understand the price breakdown, and confirm whether any additional components are recommended or required. A reputable shop will balance cost with the reliability and longevity of the repair, and taking the time to shop around can save hundreds of dollars in many cases.

Why is replacing an alternator so expensive?

Many factors affect alternator replacement cost, including the make and model of your vehicle and the type and quality of the parts used. The type of alternator can vary greatly, and so does the price. The labor cost for replacing an alternator is also a factor.

How much should I expect to pay for an alternator?

Alternator replacement cost
The average price for parts and labour is around £535.05. It is worth noting that alternators can be one of the more expensive parts of vehicle to fix or replace.

Can AutoZone change alternator?

No, AutoZone does not change alternators, but they offer free testing services for your current alternator and can provide advice on replacing it. They can also help you find a local "Preferred Shop" to do the installation for you. 
What AutoZone can do

• Test your alternator: AutoZone provides free testing for your alternator, either on or off the car, to see if it is faulty. 
• Sell you a new alternator: They have a wide selection of alternators for purchase. 
• Provide guidance: Staff can offer advice on the replacement process. 
• Find a professional installer: They can help you locate a qualified independent mechanic to perform the installation through their "Preferred Shop" network. 

What you may need to do

• Purchase the alternator: You will need to buy the replacement part from AutoZone or another retailer. 
• Arrange for installation: You will need to either install the alternator yourself or take it to a shop for professional installation. 

How much does it cost for labor to replace an alternator?

The labor cost to replace an alternator typically ranges from $180 to $270, based on an average of 1 to 2.5 hours of labor. This cost can be higher or lower depending on the vehicle's make and model, the complexity of the job, and the specific shop's labor rate. 
Factors that influence labor cost

• Labor Rate: Shops charge different hourly rates, which significantly impact the final price. 
• Complexity: The job's difficulty can increase the time required. If the alternator is hard to access or requires removing other components, the labor time and cost will go up. 
• Vehicle Type: Luxury, high-output, or modern start-stop systems can have more complex alternators that take longer to replace, often exceeding the average labor time. 
• Shop vs. Dealership: Dealerships typically have higher labor rates than independent mechanics or auto parts stores. 

How to estimate the total cost

• DIY: If you are comfortable working on cars, replacing an alternator yourself is the cheapest option, as you only pay for the part and can save hundreds of dollars in labor. 
• Local Mechanic: A local shop will likely offer a lower total price than a dealership, especially if you use an aftermarket or remanufactured part. Get quotes from a few different shops. 
• Dealership: Expect the highest price for both parts and labor if you have the service done at a dealership. 

Additional considerations

• Part Cost: The alternator part itself will be the other major cost, which can range from around $100 to over $1,400 depending on the vehicle and part quality.
• Other parts: The total bill may increase if other parts need to be replaced at the same time, such as the serpentine belt.