In brief, replacing the thermostat on a 2012 Honda Civic typically costs about 12 to 60 for the part and 100 to 300 for labor, depending on whether you choose aftermarket or OEM parts and where you have the work done, for a typical total around 120 to 360 before tax.
The 2012 Civic uses a thermostat within the cooling system, and prices vary by part type and retailer. This article breaks down current price ranges, installation considerations, and ways to save.
Part options and price ranges
Before listing the numbers, know what you’re buying: thermostat only, or a thermostat housing assembly that includes the thermostat and water outlet. OEM parts tend to be pricier but offer precise fit and a longer warranty.
- Thermostat only (aftermarket): approximately $8–$25
- Thermostat (OEM Honda): approximately $40–$70
- Thermostat housing assembly (housing plus thermostat): approximately $60–$120
- Gasket, seals and coolant (optional add-ons): approximately $2–$10
Prices vary by retailer, location, and whether you buy online or in-store. When shopping, verify the exact part number for your Civic’s VIN and engine code to avoid mismatches.
Labor, time, and total cost considerations
Labor costs depend on local shop rates and job complexity. The Civic’s thermostat replacement is typically a moderate job that can take from 1 to 2 hours for a straightforward replacement, but more time may be needed if the thermostat is hard to reach or if hoses need removal.
- DIY installation: no labor cost, but you’ll pay in time, coolant disposal and tools required
- Independent or dealership shop: typical hourly rates range from $75 to $150; total labor for a standard Civic job is usually about 1–2 hours
- Estimated total (parts + labor): commonly around $120 to $360 before tax, depending on part choice and shop rate
For best value, compare quotes from a few local shops and consider buying a thermostat housing assembly if your cooling system requires it, as replacing the housing can reduce future leaks. Always ensure proper coolant type and concentration are used during refilling.
What can affect price and installation difficulty
OEM vs aftermarket choices
OEM parts are typically more expensive but are guaranteed to fit precisely and maintain factory tolerances. Aftermarket parts save money but may vary in quality or fit.
Vehicle condition and accessibility
Older or corroded coolant hoses, a cramped engine bay, or prior repairs can increase labor time and cost. If the thermostat is located near other components, extra disassembly may be required.
When in doubt, ask for a written estimate that breaks down parts and labor, and confirm whether the price includes coolant and any needed hardware.
Where to buy and how to save
Common retailers include AutoZone, O'Reilly Auto Parts, NAPA Auto Parts, and RockAuto. Compare prices online and in-store, check bundled kits that include thermostat, gasket, and coolant, and watch for promotions or coupons. If you’re comfortable with DIY, you can save significantly by buying the parts separately and following a reliable guide for replacement.
Summary
Replacing the thermostat on a 2012 Honda Civic is a moderately priced maintenance item. Expect roughly $8–$25 for an aftermarket thermostat or $40–$70 for OEM, with a thermostat housing assembly rising to about $60–$120. Labor at a shop typically runs $75–$150 per hour, commonly totaling around $120–$360 for parts and labor, depending on your location and the exact part chosen. DIY installation can reduce costs further but requires time, proper tools and coolant handling. Always verify part compatibility with your VIN and engine code, and obtain a written estimate before work begins.