Lexus GS300 Water Pump Replacement Cost.

The average cost for a Water Pump Replacement is between $482 and $671. Labor costs are estimated between $325 and $411 while parts are priced between $157 and $260. Estimate does not include taxes and fees.
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Learn More About Water Pump Replacement Cost

Best Practices

When replacing the Lexus GS300'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 GS300 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.

Most Common Lexus GS300 Repairs

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