Heater Core Replacement Cost for Lexus GS400

Heater Core Replacement Estimate (National Average)

$957
to
$1208*
Validated estimate range for national average.

The average cost for a Heater Core Replacement is between $957 and $1208. Labor costs are estimated between $616 and $777 while parts are priced between $341 and $431. Get a personalized estimate based on your location and specific car. Estimate does not include taxes and fees.

Parts & Labor Breakdown
Labor: $616 - $777
Parts: $341 - $431
Estimate does not include taxes and fees.
Best Practices

We recommend using a high-quality replacement heater core. Cheap heater cores tend to leak and not last very long.

The heater hoses should be inspected when replacing a heater core. Problems with the heater hoses can cause similar problems to a failing heater core and are less expensive to correct.

Common Symptoms

A failed Lexus GS400 heater core can result in the car windows fogging up, coolant leaking under the dashboard, a sweet smell inside the vehicle, and mystery coolant loss.

Worn engine mounts allow the engine to move more than normal, which can damage heater core connections. Worn mounts should be replaced to avoid damage to the new heater hoses.

Last step before receiving your estimate:
* Estimate for all Lexus GS400 model years. Get a more accurate price by entering in your year.Choose Year (1998-2000)
Select year:
  • 1998
  • 1999
  • 2000