Cooling System · important priority
Thermostat Replacement Cost & Pricing
Replace a stuck-open or stuck-closed thermostat that prevents the engine from reaching operating temperature.
Typical Thermostat Replacement cost
$150–$420, with an average estimate of $240 before vehicle-specific adjustments.
What to expect
Difficulty: easy. Typical labor time: 1–3 hours.
Mechanic's tip
A thermostat stuck open means your heater barely works in winter. Stuck closed means overheating. Parts are cheap — most of the cost is labor. Replace the coolant at the same time since the system has to be drained anyway.