The thermostat part for a 2015 Buick Enclave typically costs about $20–$70, with total installed price (parts plus labor) commonly $150–$350 depending on part choice and local labor rates.
Understanding the price range
Prices vary based on whether you choose aftermarket or OEM (GM) parts, and whether you buy just the thermostat or a kit that includes a gasket and other components. Labor costs also influence the final total.
Below are the common price brackets you’ll encounter for the thermostat itself and typical kit contents.
- Aftermarket thermostat (basic unit, no housing or gasket): typically $15–$40
- Aftermarket thermostat kit (thermostat plus gasket and seals): roughly $20–$60
- OEM GM thermostat (dealer-grade part): roughly $40–$90
- OEM thermostat kit (with gasket and sometimes a housing): about $60–$120
In short, the cheapest option is an aftermarket basic thermostat; the cost rises with OEM parts or complete kits.
Where you buy and typical totals
Prices can differ by retailer and region. Here are common sources and what to expect.
- Auto parts stores (AutoZone, O'Reilly, Advance Auto) — part price generally in the low-to-mid range of the brackets above; some stores run promotions.
- Online retailers (RockAuto, Amazon) — competitive prices, watch for compatibility and shipping.
- Dealership/GM Parts — typically the most expensive, but with OEM guarantee.
Always verify compatibility with your vehicle’s VIN and engine size (2015 Enclave uses a 3.6L V6). If you’re unsure, consult a mechanic before purchase.
Labor considerations
Replacing the thermostat is a mechanical job that can take roughly 1 to 2 hours, depending on access and whether the thermostat housing needs replacement. Labor rates vary by region and shop, commonly around $75 to $150 per hour.
Estimated total (parts plus labor) generally ranges from about $150 to $350, with higher-end OEM kits and higher labor rates edging toward the upper end.
What to expect during replacement
Typical steps include draining coolant, removing the thermostat housing, replacing the thermostat and gasket, refilling coolant, and testing for leaks and proper temperature operation. Some jobs might also require a coolant flush, which can add to the cost and time.
Warranty and installation tips
Ask about part warranties and whether the shop offers a coolant system inspection after replacement. Keeping the cooling system in good condition helps prevent future issues with thermostat failures or leaks.
Summary
For a 2015 Buick Enclave, plan for a thermostat part priced roughly between $20 and $70, with total replacement costs typically in the $150–$350 range. Your exact price will depend on whether you choose aftermarket or OEM parts, the contents of the kit, and local labor rates. Verify compatibility with your VIN, compare multiple retailers, and obtain a written estimate before work begins.


