Lexus LX450 Water Pump Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(6)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(6)

Water Pump Replacement Service

How much does a Water Pump Replacement cost?

On average, the cost for a Lexus LX450 Water Pump Replacement is $542 with $192 for parts and $350 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1997 Lexus LX450L6-4.5LService typeWater Pump ReplacementEstimate$771.38Shop/Dealer Price$883.10 - $1182.82
1996 Lexus LX450L6-4.5LService typeWater Pump ReplacementEstimate$748.86Shop/Dealer Price$852.85 - $1146.77
Show example Lexus LX450 Water Pump Replacement prices

What is a water pump and how does it work?

The water pump is a belt or chain-driven engine accessory bolted to the engine above the crankshaft pulley. The pump housing has an impeller that circulates engine coolant through the cooling system passageways in the engine block and cylinder head, on to the radiator, where the coolant temperature is reduced. . The lower temperature coolant then flows back to the water inlet on the engine and the water pump continues the cycle.

When to consider replacing the water pump:

  • Coolant leaks or overheating. The water pump impeller shaft is supported by a bearing. Eventually, the bearing or seal can wear and leak or damage the impeller. Many water pumps have weep holes near the pump bearing. If you see significant leakage from that weep hole, it is time to replace the pump.
  • Bearing roughness or noise. If the water pump shaft does not turn smoothly or the pump is noisy, the bearing is excessively worn. Pump replacement will be necessary.
  • Timing belt replacement. In engines where the water pump is driven by the timing belt, it is a good idea to replace the water pump at the same time the timing belt is replaced. The extensive work explains why it is always recommended to replace the water pump whenever the mechanic already has these components removed for regularly scheduled timing belt replacement.

How do mechanics replace the water pump?

  • The water pump is usually bolted to the front of the engine. The replacement procedure will vary depending on whether the pump is driven by the timing belt, the serpentine belt, or chain.
  • On a cold engine, the engine coolant is drained to a level below the water pump.
  • Components that require removing to access the water pump are removed, including the belt or chain that directly drive the pump.
  • The bolts holding the pump to the engine are removed and the pump is pulled out.
  • The gasket surface must be cleaned and the pump mounting surface inspected. A new gasket, rubber seal, or RTV sealant, as required, is installed and then the new pump. The bolts are torqued in sequence using a calibrated inch pound torque wrench.
  • For applications where the water pump is driven by the timing belt, the timing belt must be removed. Typically, this requires removal of the crankshaft pulley, timing belt covers, and timing belt tensioner. Once the new pump is installed, new coolant is added back while bleeding the cooling system of any air. The engine is then run and brought to normal operating temperature to check for leaks and ensure normal operating temperature.

Is it safe to drive with a water pump problem?

No. Should the water pump only leak a little bit, you can drive the car. However, a small leak could suddenly enlarge or the pump bearing might unexpectedly seize. Either circumstance would likely cause engine overheating. If a defective water pump causes the overheating, it is not safe to drive because of the damage to the engine.

When replacing the water pump keep in mind:

  • It is best to install a new cooling system thermostat when you install a new water pump, especially if the thermostat is old or original.
  • Completely flushing the cooling system is a good idea when you replace the water pump. Flushing can be done before or after pump replacement.
  • The rest of the cooling system should be inspected too — particularly rubber hoses, which have a limited lifetime.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(6)

Rating Summary
5
1
0
0
0
5
1
0
0
0

Chris

23 years of experience
2372 reviews
Chris
23 years of experience
Lexus LX450 L6-4.5L - Power Steering Pump - Mission Viejo, California
Chris was prompt and professional. He provided a detailed description of the work completed and possible areas of maintenance I should be considering for my vehicle based on his inspection. I would not hesitate to contact him again for any service I might need for my vehicles in the future. It was a great experience.

Bernard

43 years of experience
40 reviews
Bernard
43 years of experience
Lexus LX450 L6-4.5L - Noise from engine or exhaust - Montebello, California
Outstanding mechanic.

Mila

12 years of experience
129 reviews
Mila
12 years of experience
Lexus LX450 L6-4.5L - Pre-purchase Car Inspection - Burke, Virginia
Excellent pre-purchase inspection. Got quickly to the point on his recommendation for purchase.

Kevin

34 years of experience
234 reviews
Kevin
34 years of experience
Lexus LX450 L6-4.5L - Brake Master Cylinder - Los Angeles, California

Excellent Rating

(6)

Rating Summary
5
1
0
0
0
5
1
0
0
0
Number of Lexus LX450 services completed
66+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform

Recent articles & questions

P0321 OBD-II Trouble Code: Ignition/Distributor Engine Speed Input Circuit Range/Performance
P0321 P0321 code definition Ignition/Distributor Engine Speed Input Circuit Range/Performance What the P0321 code means P0321 is an OBD-II generic code that the engine control module (ECM) detected the engine speed input sensor circuit out of range or its performance...
How to Replace Windshield Washer Tubes
Car windshield washer tubes transport washer fluid to washer nozzles to spray on car windshields. Replace washer tubes when fluid stops coming out.
How to Change a Car Battery
Changing your car battery is a simple and easy automotive repair that you can actually accomplish yourself with the right preparation and...

Battery light on

Hello. If you continue to have a low voltage issue with the new alternator then there may be a circuit issue. Most of the time, if the alternator is good, it is the battery cables or there is an issue...

Shifting into 2nd at high RPM

Hi there. It is very possible that the speed sensor or shift solenoid is the primary source of this type of issue with the first to second shift. However, a worn out torque converter or an obstruction inside the transmission...

Brand new battery. car won't start 1996 Saturn SL. Went to the store just fine. Go to leave won't start, made noise, now nothing.

Hello, thank you for writing in. The first thing to check with your starting issues (https://www.yourmechanic.com/services/car-is-not-starting-inspection) are the connections to the battery. Make sure the battery cables are clean, dry, and tight. From there, you will want to look into...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com