Toyota Sienna Water Pumps

1632320020 - : Engine Coolant Thermostat Housing for Toyota Image

Engine Coolant Thermostat Housing

Toyota 16323-20020
Sienna. 3.0 & 3.3L. From 01/2003. Highlander Hybrid.
$164.79
MSRP $245.00
Save $80.21
32.7% Off
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1632120020 - : Engine Coolant Thermostat Housing for Toyota Image

Engine Coolant Thermostat Housing

Toyota 16321-20020
Avalon. Sienna. 6 cylinder. Camry.
$82.89
MSRP $123.24
Save $40.35
32.7% Off
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1635125040 - : Engine Coolant Outlet Flange for Toyota Image

Engine Coolant Outlet Flange

Toyota 16351-25040
Location-Engine Cylinder Head. 2.5L. Thermostat & hoses. Venza.
$36.13
MSRP $53.71
Save $17.58
32.7% Off
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4707048100 - : Power Brake Booster for Toyota Image

Power Brake Booster

Toyota 47070-48100
$1,624.55
MSRP $2,412.68
Save $788.13
32.7% Off
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16207F0120 - : Engine Coolant Pipe for Toyota Image

Engine Coolant Pipe

Toyota 16207-F0120
2.5L, #2.
$50.89
MSRP $75.67
Save $24.78
32.7% Off
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162670P050 - : Engine Coolant Hose for Toyota Image

Engine Coolant Hose

Toyota 16267-0P050
Throttle Body to Pipe. Engine Cooling. 3.5L.
$7.88
MSRP $11.13
Save $3.25
29.2% Off
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163220P040 - : Engine Coolant Pipe for Toyota Image

Engine Coolant Pipe

Toyota 16322-0P040
3.5L 2017-20. without tow package. 3.5L, thermostat & hoses.
$65.89
MSRP $97.96
Save $32.07
32.7% Off
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7714408010 - : Fuel Tank Lock Ring for Toyota Image

Fuel Tank Lock Ring

Toyota 77144-08010
Fits Highlander, Sequoia, Sienna, Tundra 2005-06. Us built. 26 gallon. Without hybrid.
$56.94
MSRP $84.65
Save $27.71
32.7% Off
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162610V020 - : Engine Coolant Hose for Toyota Image

Engine Coolant Hose

Toyota 16261-0V020
Throttle Body to Cylinder Head. Engine # 0xxxxxx-2999999. Engine # 0axxxxx-0zxxxxx. Engine # exxxxxx-gxxxxxx. Exc.Japan Built.
$7.17
MSRP $10.13
Save $2.96
29.2% Off
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8725408010 - : HVAC Heater Hose for Toyota Image

HVAC Heater Hose

Toyota 87254-08010
Primary HVAC. Inlet. Rear Outlet to "T".
$42.39
MSRP $63.02
Save $20.63
32.7% Off
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8724508340 - : HVAC Heater Hose for Toyota Image

HVAC Heater Hose

Toyota 87245-08340
Inlet. Rear Underbody Pipe to Rear Heater Core. AuxIliary HVAC.
$31.87
MSRP $47.39
Save $15.52
32.7% Off
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8720908050 - : Front Hose for Toyota Image

Front Hose

Toyota 87209-08050
3.5L.
$184.81
MSRP $274.77
Save $89.96
32.7% Off
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Your Toyota Sienna water pump moves water back and forth between its radiator and engine. This general cooling process helps the latter stay at the right temperature so it can keep working properly and avoid overheating.

How water pumps work is simple. First, water passes from your radiator through your engine, heating up as it travels. The liquid then gets shunted back to the radiator, where it cools off again, and the process repeats. More specifically, your engine spins the water pump's belt, which turns its axle, a movement which creates suction, pulling the water out of your radiator. When water reaches the pump, centrifugal force drives it against the pump's outer walls, at which point, it goes down a drain into your engine block, passes through the cylinder heads, and gets sent back into the radiator.

Unfortunately, no water pump lasts indefinitely. They can fail as they age. Luckily, there are signs of a bad one. Look for the following:

  • A lit temperature warning or a low-coolant warning on the dash
  • Coolant leakage
  • A loose pulley
  • Low grinding noises during engine operation

If you're seeing any of these symptoms, run a full inspection. If it turns out you need a new water pump, you can buy one here on the Web.

Fix Your Toyota Sienna Cooling System | Buy a Genuine OEM Water Pump Online

The best fit for your Sienna will be genuine Toyota. The water pumps your OEM makes, it designs to fit its minivans, after all. Our auto parts store has what you need in stock and ready to ship. Order now and you'll have the project done in no time!