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How much does it cost to replace a thermostat in a 2008 Chevy Impala?

Typically, a thermostat replacement for a 2008 Chevy Impala costs about $150 to $350, depending on parts, labor rates, and engine variant. This article breaks down the price components, regional differences, and tips for getting an accurate estimate.


What influences the cost


The total price is driven by three core factors: the price of parts, the cost of labor, and any regional or shop-specific add-ons. The Impala's 2008 model could use different V6 engines (3.5L or 3.9L) which can affect accessibility and time required for the job. Here’s a closer look at the main cost drivers.



  • Parts costs: You’ll pay for the thermostat assembly, a gasket or O-ring, and the coolant used to refill the cooling system. Expect about $15 to $60 for parts, depending on whether you choose a standard aftermarket part or an OEM/Delphi unit.

  • Labor costs: Labor time is typically 1 to 2 hours, with shop rates ranging roughly from $75 to $120 per hour at independent shops, and higher at dealerships.

  • Coolant and fluids: The Impala uses Dex-Cool coolant. Replacing the thermostat usually involves flushing/refilling; coolant costs roughly $15 to $45, depending on how much is needed.

  • Access and design: If the thermostat is hard to reach or the housing needs replacement, it can add time and parts costs. Some models require removal of components or more complex access, extending labor time.

  • Additional fees and regional variation: Disposal fees, shop supplies, and local labor rates vary by region and shop, influencing the final price.


Understanding these factors helps you compare quotes more accurately and anticipate where the price may move up or down.


Typical price ranges and what’s included


Prices usually include the parts, labor, and standard coolant. Some shops itemize fluids separately or add disposal fees. The ranges below reflect common scenarios for a 2008 Impala.



  • Independent auto repair shop: Parts $15–$60; Coolant $15–$45; Labor 1–2 hours at roughly $75–$120/hour. Estimated total: about $120–$350.

  • Dealership or high-cost shop: Parts often the same or OEM; Labor $100–$150 per hour; Coolant and disposal fees apply. Estimated total: about $300–$500 (or more in some regions).

  • Do-it-yourself (DIY): You buy the parts and do the work by yourself. Parts typically $15–$60 plus coolant if you’re refilling. Your out-of-pocket could be as low as $25–$80 if you supply labor, but you’ll need the right tools and knowledge, and there’s a risk if not done correctly.


In all cases, confirm exactly what’s included in the estimate to avoid surprise charges for coolant, disposal, or diagnostic time.


Tips for getting an accurate estimate


When seeking quotes, use these guidelines to ensure you’re comparing apples to apples.



  1. Ask for a written estimate that itemizes parts, labor, coolant, and disposal fees.

  2. Ask whether the price includes a coolant flush and refill, and whether Dex-Cool or your preferred coolant is used.

  3. Inquire about whether the thermostat housing, gaskets, or during access work are included in the labor time.

  4. Compare multiple shops – independent mechanics often price more competitively than dealerships.

  5. Check the shop’s warranty on parts and labor for thermostat replacement.


Clear quotes and transparent terms can prevent miscommunication and help you plan your budget more effectively.


Summary


Replacing a thermostat on a 2008 Chevy Impala is a routine repair with a price that generally falls in the range of $120 to $350 at an independent shop, and roughly $300 to $500 at a dealership, depending on engine variant, accessibility, and regional labor rates. Parts costs are modest, coolant is a factor, and labor time plays a major role. To get the best value, compare multiple written estimates, confirm inclusions, and consider a reputable independent shop for a balance of price and quality.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.