What are the signs of a failing water pump in my Toyota Prius?

A failure in the water pump can have serious consequences for the engine, leading to overheating. To check the functionality of the water pump, start the engine and let it warm up to normal operating temperature, then squeeze the right-side radiator hose. If the water pump is working properly, a pressure surge should be felt as the hose is released. Water pumps are designed with weep or vent holes, and if the pump seal fails, coolant will leak from this hole. To locate the hole, a flashlight may be needed to look through the space behind the pulley just below the water pump shaft. Additionally, if the water pump shaft bearings fail, a howling sound may be heard at the front of the engine while it is running. Checking for bearing wear can be done by rocking the water pump pulley up and down, feeling for any play. It's important not to mistake drive belt slippage, which causes a squealing sound, for water pump failure. Applying automotive drive belt dressing on the belt can help eliminate the belt as a possible cause of the noise.

How do you remove and install the water pump on a Toyota Prius?

The removal of the water pump involves several steps. For 2009 and earlier models, start by disconnecting the cable from the negative terminal of the auxiliary battery and draining the cooling system. Next, remove the engine drive belt and support the engine with a Jack stand. After that, remove the right-side engine mount and bracket, then use a screwdriver while removing the pulley bolts. Remove the fasteners and carefully take out the water pump, remembering its original bolt position. Installation begins with cleaning the sealing surfaces and the replacement of the gasket with a new one. Install the fasteners in their original positions, ensuring proper torque specifications. Reassemble the remaining parts in the reverse order of removal, refill the cooling system, run the engine, and check for any leaks or issues. For 2010 and later models, detach the coolant hose from the inlet air filter and disconnect the wiring harness. Remove the bolts and the inlet air filter assembly, then drain the engine coolant. Disconnect the wiring from the water pump and remove the mounting bolts. Pull out the water pump from the timing chain cover, discarding the gasket O-ring. During installation, follow the reverse order of removal. Replace the gasket O-ring with a new one and tighten the bolts.

Genuine Toyota Prius Water Pump

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16 Water Pumps found

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Toyota Prius Engine Water Pump Assembly
Part Number: 161A0-29015
$247.90 MSRP: $355.48
You Save: $107.58 (31%)
ADD TO CART
Product Specifications
- Other Name: Pump Assembly, Electric ; Pump Assembly, Engine Water; Water Pump, Water Pump Assembly
- Replaces: 161A0-39015
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2015 Toyota Prius | E, G, L, S | 4 Cyl 1.8L | 2ZRFXE; 2ZRFXE; ZVW30L-AHXBBA, ZVW30L-AHXEBA, ZVW30L-AHXEBK, ZVW30L-AHXGBA, ZVW35L-BHXBBA, ZVW35L-BHXEBA, ZVW35L-BHXEBK, ZVW35L-BHXGBA
View related parts
Toyota Prius Water Pump Assembly W/Motor Bracket
Part Number: G9020-47031
$157.15 MSRP: $223.42
You Save: $66.27 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy, Water W/Motor & Bracket; Motor Assembly, Pump
- Replaces: G9020-47030
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2009 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW20L-AHEEBA, NHW20L-AHEEBK
View related parts
Toyota Prius Engine Water Pump Assembly
Part Number: 161A0-39035
$247.90 MSRP: $355.48
You Save: $107.58 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly, Electric ; Pump Assembly, Engine Water; Water Pump
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2022 Toyota Prius | 4 Cyl 1.8L | 2ZRFXE; 2ZRFXE; ZVW50L-AHXEBA, ZVW51L-AHXBBA, ZVW51L-AHXEBA, ZVW51L-AHXGBA, ZVW51L-AHXHBA, ZVW55L-AHXEBA, ZVW55L-AHXGBA
View related parts
Toyota Prius Engine Water Pump Assembly
Part Number: 161A0-39015
$247.90 MSRP: $355.48
You Save: $107.58 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly, Electric W ; Pump Assembly, Engine Water
- Replaced by: 161A0-29015
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2013 Toyota Prius | E, G, L, S | 4 Cyl 1.8L | 2ZRFXE; 2ZRFXE; ZVW30L-AHXBBA, ZVW30L-AHXEBA, ZVW30L-AHXEBK, ZVW30L-AHXGBA, ZVW35L-BHXBBA, ZVW35L-BHXEBA, ZVW35L-BHXEBK, ZVW35L-BHXGBA
View related parts
Toyota Prius Engine Water Pump Assembly
Part Number: 16100-29156
$53.97 MSRP: $75.43
You Save: $21.46 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy, Engine Water
- Replaced by: 16100-29157-83
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2009 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW20L-AHEEBA, NHW20L-AHEEBK
View related parts
Toyota Prius Engine Water Pump Assembly
Part Number: 16100-29155
$53.97 MSRP: $75.43
You Save: $21.46 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy, Engine Water
- Replaced by: 16100-29157-83
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2006 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW11L-AEEEBA, NHW11L-AEEEBK, NHW20L-AHEEBA, NHW20L-AHEEBK
View related parts
Toyota Prius Inverter Water Pump Assembly(W/Motor)
Part Number: G9040-47090
$239.97 MSRP: $344.10
You Save: $104.13 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump, Pump Assembly, Water Pump
- Comment: (W/MOTER)
- Replaces: G9040-48020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2012 Toyota Prius | E, G, L, S | 4 Cyl 1.8L | 2ZRFXE; 2ZRFXE; ZVW30L-AHXBBA, ZVW30L-AHXEBA, ZVW30L-AHXEBK, ZVW30L-AHXGBA, ZVW35L-BHXEBA, ZVW35L-BHXEBK
View related parts
Toyota Prius Water Pump Assembly W/Motor Bracket
Part Number: G9020-47030
$157.15 MSRP: $223.42
You Save: $66.27 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy, Water W/Motor & Bracket
- Replaced by: G9020-47031
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2008 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW20L-AHEEBA, NHW20L-AHEEBK
View related parts
Toyota Prius Inverter Water Pump Assembly(W/Motor)
Part Number: G9040-52010
$219.39 MSRP: $314.59
You Save: $95.20 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2015 Toyota Prius | G, L, S | 4 Cyl 1.8L | 2ZRFXE; 2ZRFXE; ZVW30L-AHXBBA, ZVW30L-AHXEBA, ZVW30L-AHXEBK, ZVW30L-AHXGBA, ZVW35L-BHXBBA, ZVW35L-BHXEBA, ZVW35L-BHXEBK, ZVW35L-BHXGBA
View related parts
Toyota Prius Inverter Water Pump Assembly(W/Motor)
Part Number: G9040-47040
$390.97 MSRP: $575.51
You Save: $184.54 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly, Water Pump
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2022 Toyota Prius | 4 Cyl 1.8L | 2ZRFXE; 2ZRFXE; ZVW50L-AHXEBA, ZVW51L-AHXBBA, ZVW51L-AHXEBA, ZVW51L-AHXGBA, ZVW51L-AHXHBA, ZVW55L-AHXEBA, ZVW55L-AHXGBA
View related parts
Toyota Prius Water Pump Assembly W/Motor Bracket
Part Number: 16290-21010
$219.69 MSRP: $315.02
You Save: $95.33 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy, Water W/Motor & Bracket
- Replaced by: 16290-21011
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2008 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW20L-AHEEBA, NHW20L-AHEEBK
View related parts
Toyota Prius Inverter Water Pump Assembly(W/Motor)
Part Number: G9040-48020
$239.97 MSRP: $344.10
You Save: $104.13 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Comment: (W/MOTER)
- Replaced by: G9040-47090
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2012 Toyota Prius | E, G, L, S | 4 Cyl 1.8L | 2ZRFXE; 2ZRFXE; ZVW30L-AHXBBA, ZVW30L-AHXEBA, ZVW30L-AHXEBK, ZVW30L-AHXGBA, ZVW35L-BHXEBA, ZVW35L-BHXEBK
View related parts
Toyota Prius Water Pump Assembly W/Motor Bracket
Part Number: G9020-47020
$188.53 MSRP: $270.34
You Save: $81.81 (31%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Pump Assy, Water W/Motor & Bracket
- Replaced by: G9020-47022
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2003 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW11L-AEEEBA, NHW11L-AEEEBK
View related parts
Toyota Prius Water Pump Assembly W/Motor Bracket
Part Number: 16290-21011
$219.69 MSRP: $315.02
You Save: $95.33 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy, Water W/Motor & Bracket; Pump, Water Pump
- Replaces: 16290-21010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2009 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW20L-AHEEBA, NHW20L-AHEEBK
View related parts
Toyota Prius Water Pump Assembly(For Heater)
Part Number: 87200-47030
$779.00 MSRP: $1146.68
You Save: $367.68 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy, Water(For Heater); Pump Assembly, Water Pump
- Comment: (FOR HEATER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2009 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW20L-AHEEBA, NHW20L-AHEEBK
View related parts
Toyota Prius Water Pump Assembly(For Heater)
Part Number: 87200-47020
Product Specifications
- Other Name: Pump Assy, Water(For Heater); Pump Assembly
- Comment: (FOR HEATER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2003 Toyota Prius | 4 Cyl 1.5L | 1NZFXE; 1NZFXE; NHW11L-AEEEBA, NHW11L-AEEEBK

Toyota Prius Water Pump

The Water Pump in Toyota Prius vehicles involved in the circulation of coolant from the radiator to the engine to absorbs heat produced during combustion. A majority of Prius models consist of an aluminum casting water pump with a revolving shaft that is sprocketed by a belt originating from the crankshaft. Some of the first signs that one may notice that his or her water pump is failing include the following; oil or coolant leaks, noise that may come from bearings that have been worn out, and excessive heating of the engine. High performance engines come with performance water pumps with improved impellors and internal passages for high rate flow of coolant. Some of the features of electric water pump include; Independence of engine RPM on coolant circulation, pump operation after the engine cut off for cooling control among others.

If you are in demand for superior quality and affordable OEM Toyota Prius Water Pump, then shop with us! We own a wide range of the reduced-priced genuine Toyota Prius Water Pump. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Prius Water Pump Parts Questions & Experts Answers

Water Pump Assembly W/Motor Bracket
G9020-47031
Q: What are the signs of a failing water pump in my Toyota Prius?
A: A failure in the water pump can have serious consequences for the engine, leading to overheating. To check the functionality of the water pump, start the engine and let it warm up to normal operating temperature, then squeeze the right-side radiator hose. If the water pump is working properly, a pressure surge should be felt as the hose is released. Water pumps are designed with weep or vent holes, and if the pump seal fails, coolant will leak from this hole. To locate the hole, a flashlight may be needed to look through the space behind the pulley just below the water pump shaft. Additionally, if the water pump shaft bearings fail, a howling sound may be heard at the front of the engine while it is running. Checking for bearing wear can be done by rocking the water pump pulley up and down, feeling for any play. It's important not to mistake drive belt slippage, which causes a squealing sound, for water pump failure. Applying automotive drive belt dressing on the belt can help eliminate the belt as a possible cause of the noise.
Inverter Water Pump Assembly(W/Motor)
G9040-52010
Q: How do you remove and install the water pump on a Toyota Prius?
A: The removal of the water pump involves several steps. For 2009 and earlier models, start by disconnecting the cable from the negative terminal of the auxiliary battery and draining the cooling system. Next, remove the engine drive belt and support the engine with a Jack stand. After that, remove the right-side engine mount and bracket, then use a screwdriver while removing the pulley bolts. Remove the fasteners and carefully take out the water pump, remembering its original bolt position. Installation begins with cleaning the sealing surfaces and the replacement of the gasket with a new one. Install the fasteners in their original positions, ensuring proper torque specifications. Reassemble the remaining parts in the reverse order of removal, refill the cooling system, run the engine, and check for any leaks or issues. For 2010 and later models, detach the coolant hose from the inlet air filter and disconnect the wiring harness. Remove the bolts and the inlet air filter assembly, then drain the engine coolant. Disconnect the wiring from the water pump and remove the mounting bolts. Pull out the water pump from the timing chain cover, discarding the gasket O-ring. During installation, follow the reverse order of removal. Replace the gasket O-ring with a new one and tighten the bolts.