How to service and repair the water pump on Toyota Sienna?

A water pump service or repair requires the draining of engine coolant during the first step. The service and repair of the water pump begins with removing the outer front cowl top panel assembly and following it with the timing belt along with camshaft timing pulleys and No.2 idler pulley and finally the No.3 timing belt cover. The installation requires removing the water pump by unbolting its four fixtures together with two nuts and the gasket and pump separately. The drain hole of the water pump should be examined visually for coolant leaks during inspection. Replace the water pump if any leakage is present. Inspection requires a pulley rotation check for the smooth operation of the water pump bearing along with necessary water pump replacement. Examine all components belonging to the timing belt system. Align a new gasket along with the water pump before mounting it into place via the 4 bolts and 2 nuts while applying torque to 6 Nm (60 kgf-cm, 53 inch lbs.) and avoiding gasket contact with oil. After installing the No.3 timing belt cover proceed to install the No.2 idler pulley along with the camshaft timing pulleys and timing belt before you complete the installation with the outer front cowl top panel assembly. Perform the first start-up by adding engine coolant then inspect for any leakage while verifying the engine coolant reading.

OEM Toyota Sienna Water Pump

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6 Water Pumps found

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Toyota Sienna Water Pump
Part Number: 16100-29085
$75.09 MSRP: $105.41
You Save: $30.32 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly, Water; Engine Water Pump; Water Pump Assembly; Pump Assembly, Engine Water
- Replaces: 16100-09070
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2006 Toyota Sienna | CE, LE, Limited, XLE, XLE Limited | 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS
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Toyota Sienna Water Pump
Part Number: 16100-09442
$136.76 MSRP: $193.60
You Save: $56.84 (30%)
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Product Specifications
- Other Name: Pump Assembly, Water; Engine Water Pump; Water Pump Assembly; Pump Assembly, Engine Water
- Manufacturer Note: (L)
- Replaces: 16100-39456, 16100-09440, 16100-09441, 16100-39455
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2007-2016 Toyota Sienna | Base, CE, L, LE, Limited, SE, XLE | 6 Cyl 3.5 L GAS
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Toyota Sienna Water Pump
Part Number: 16100-09515
$103.32 MSRP: $145.02
You Save: $41.70 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly, Water; Engine Water Pump; Water Pump Assembly; Pump Assembly, Engine Water
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2012 Toyota Sienna | Base, LE | 4 Cyl 2.7 L GAS
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Toyota Sienna Pump Assembly, Engine Water
Part Number: 16100-09690
$131.59 MSRP: $186.27
You Save: $54.68 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly, Water; Engine Water Pump; Water Pump
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2017-2020 Toyota Sienna | L, LE, Limited, Limited Premium, SE, SE Premium, XLE, XLE Premium | 6 Cyl 3.5 L GAS
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Toyota Sienna Water Pump
Part Number: G9040-48060
$463.56 MSRP: $679.35
You Save: $215.79 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Assembly, Water W/M; Auxiliary Pump; Inverter Water Pump Assembly(W/Motor)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2023 Toyota Sienna | 25th Anniversary Edition, LE, Limited, Platinum, XLE, XSE | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Sienna Water Pump
Part Number: G9040-42010
$485.10 MSRP: $710.92
You Save: $225.82 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly, Water W/M; Drive Motor Inverter Cooler Water Pump; Auxiliary Pump; Inverter Water Pump Assembly(W/Motor)
- Manufacturer Note: MARK=G
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2022 Toyota Sienna | LE, Limited, Platinum, XLE, XSE | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)

Toyota Sienna Water Pump

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Toyota Sienna Water Pump Parts Questions & Experts Answers

Water Pump
16100-29085
Q: How to service and repair the water pump on Toyota Sienna?
A: A water pump service or repair requires the draining of engine coolant during the first step. The service and repair of the water pump begins with removing the outer front cowl top panel assembly and following it with the Timing Belt along with camshaft timing pulleys and No.2 idler pulley and finally the No.3 timing belt cover. The installation requires removing the water pump by unbolting its four fixtures together with two nuts and the gasket and pump separately. The drain hole of the water pump should be examined visually for coolant leaks during inspection. Replace the water pump if any leakage is present. Inspection requires a pulley rotation check for the smooth operation of the water pump bearing along with necessary water pump replacement. Examine all components belonging to the timing belt system. Align a new gasket along with the water pump before mounting it into place via the 4 bolts and 2 nuts while applying torque to 6 Nm (60 kgf-cm, 53 inch lbs.) and avoiding gasket contact with oil. After installing the No.3 timing belt cover proceed to install the No.2 idler pulley along with the camshaft timing pulleys and timing belt before you complete the installation with the outer front cowl top panel assembly. Perform the first start-up by adding engine coolant then inspect for any leakage while verifying the engine coolant reading.