Water Pump Replacement Cost for Lexus LS400

Water Pump Replacement Estimate (National Average)

Validated estimate range for national average.

The average cost for a Water Pump Replacement is between $605 and $838. Labor costs are estimated between $440 and $555 while parts are priced between $165 and $283. Get a personalized estimate based on your location and specific car. Estimate does not include taxes and fees.

Parts & Labor Breakdown
Labor: $440 - $555
Parts: $165 - $283
Estimate does not include taxes and fees.
Best Practices

When replacing the Lexus LS400's water pump, the drive belts and/or timing belt may need to be removed. The belts should be replaced if they show signs of wear or coolant damage.

The entire cooling system—including all the coolant hoses and fittings, radiator, coolant fan(s), and fan clutch (if equipped)—should be inspected when replacing the water pump.

To help prevent future issues, we recommend replacing the thermostat when the cooling system has been opened for repairs (e.g. water pump or radiator replacement) or during a system flush.

Common Symptoms

Lexus LS400 water pumps require replacement if they begin to leak coolant or become noisy. Leaking water pumps can result in damage to the drive and timing belts.

A failed water pump can be caused by problems in the cooling system, such as a failing thermostat, radiator, or head gasket.

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