BUICK Regal Sportback Engine thermostat replacement Cost
2017–2023 · Engine, Fuel & Emissions system
Typical range
$185–$333
Parts + labour
Labour hours
0.7–3h
At a typical garage
The thermostat regulates engine temperature by controlling coolant flow to the radiator. A stuck-closed thermostat causes overheating; a stuck-open one keeps the engine running cold, increasing wear and reducing heater output. BUICK Regal Sportback thermostat replacement costs $185–$333.
What affects the price
- OEM vs aftermarket thermostat (OEM strongly recommended for reliability)
- Whether the housing and gasket are replaced too
- Coolant top-up cost after the job
Common questions
How long does this repair take?
Engine thermostat replacement on a BUICK Regal Sportback typically takes 0.7–3 hours at a garage.
How often does this need to be done?
For a BUICK Regal Sportback, this is typically needed thermostats are replaced on failure; typical lifespan is 80,000–100,000 miles.
Other engine, fuel & emissions system repairs on the BUICK Regal Sportback
- ABS hydraulic unit replacement$425–$765
- ABS sensor replacement$175–$315
- ABS system bleeding$140–$252
- AC compressor clutch replacement$350–$630
- AC compressor replacement$375–$675
Engine thermostat replacement cost on similar cars
- BMW 5 Series Sedan$204–$366
- AUDI A6 Avant$185–$333
- MERCEDES BENZ E-Klasse and predecessors$185–$333
- VOLVO S80$204–$366
- SAAB 9-5$185–$333
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