How to inspect, diagnose and replace a water pump in a Nissan Pathfinder's engine cooling system?

A failure in the water pump can cause serious engine damage due to overheating. There are two ways to check the operation of the water pump while it's installed on the engine. If defective, it should be replaced with a new or rebuilt unit. Water pumps have weep holes located on their underside. Coolant will leak from this hole if the pump seal fails. On 3.3L V6 engines, use a flashlight and a small mirror to find the hole on the water pump from underneath. On 3.5L V6 engines, the weep hole directs coolant out between the timing chain cover and the engine block. If the water pump shaft bearings fail, a howling sound might be heard. Shaft wear on four-cylinder and 3.3L V6 engines can be detected by rocking the water pump pulley with the drive belt removed. On 3.5L V6 engines, rock the water pump sprocket after relieving the main timing chain tension. Sometimes impellers corrode, affecting cooling efficiency. For replacement, disconnect the battery's negative terminal, drain the coolant, remove the drive belts, engine cooling fan, water pump/fan pulley, upper radiator hose, fan shroud, and, on 3.3L V6 engines, the idler pulley bracket, crankshaft pulley, and timing belt covers. On 3.5L V6, remove the drain plug, timing chain tensioner cover, and water pump cover. Rotate the crankshaft 20 degrees counterclockwise for 3.5L V6. Remove the water pump and clean bolt threads and threaded holes. Compare pumps, clean mating surfaces with lacquer thinner or acetone, and apply sealant. Attach the new pump finger tight, then tighten bolts in 1/4-turn increments. On 3.5L V6, rotate the crankshaft 20 degrees clockwise and reinstall all removed parts. Wait an hour, then refill and bleed the cooling system. Run the engine to check for leaks and proper operation. Timing chain noise on 3.5L V6 engines after this procedure is normal until the air has bled out. Start the engine and let it run at 3,000rpm until the noise subsides.

Genuine Nissan Pathfinder Water Pump

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21 Water Pumps found

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Nissan Pathfinder Pump Assy-Water
Part Number: 21010-7S000
$137.06 MSRP: $208.48
You Save: $71.42 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Water Pump
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2007-2012 Nissan Pathfinder | LE, SE | 8 Cyl 5.6L | VK56DE
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Nissan Pathfinder Pump Assembly Water
Part Number: 21010-7Y026
$118.00 MSRP: $170.72
You Save: $52.72 (31%)
ADD TO CART
Product Specifications
- Other Name: Pump Assy-Water
- Replaced by: B1010-7Y01A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2007-2012 Nissan Pathfinder | LE, S, SE, SE Off-Road, Silver Edition, SV, XE | 6 Cyl 4.0L | VQ40DE
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Nissan Pathfinder Pump Assy-Water
Part Number: 21010-JA10A
$118.29 MSRP: $179.93
You Save: $61.64 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 21010-JA11A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2013-2017 Nissan Pathfinder | Platinum, S, SL, SV | 6 Cyl 3.5L | VQ35DE
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Nissan Pathfinder Pump Assembly Water
Part Number: 21010-3TA0B
$87.46 MSRP: $133.05
You Save: $45.59 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy-Water; Water Pump
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2014 Nissan Pathfinder | Platinum, SL, SV | 4 Cyl 2.5L | QR25DER
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Nissan Pathfinder Pump Assy-Water
Part Number: 21010-7Y025
$118.00 MSRP: $170.72
You Save: $52.72 (31%)
ADD TO CART
Product Specifications
- Replaced by: B1010-7Y01A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2005-2006 Nissan Pathfinder | LE, S, SE, XE | 6 Cyl 4.0L | VQ40DE
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Nissan Pathfinder Pump Assembly Water
Part Number: 21010-6KA1A
$158.26 MSRP: $240.73
You Save: $82.47 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Water Pump
- Replaces: 21010-6KA0A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2022-2024, 2020 Nissan Pathfinder | Platinum, Rock Creek, S, SL, SV | 6 Cyl 3.5 L GAS
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Nissan Pathfinder Pump Ass Wat
Part Number: 21010-12G26
$90.97 MSRP: $138.38
You Save: $47.41 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy-Water
- Replaced by: 21010-12G28
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1987-1995 Nissan Pathfinder | SE, ST, XE | 6 Cyl 3.0L | VG30E, VG30I
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Nissan Pathfinder Pump Water
Part Number: 21010-0W027
$167.43 MSRP: $223.23
You Save: $55.80 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy-Water
- Replaced by: B1010-0W00J
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1998-2002 Nissan Pathfinder | LE, SE, XE | 6 Cyl 3.3L | VG33E
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Nissan Pathfinder Pump Assy-Water
Part Number: 21010-31U28
$88.01 MSRP: $133.87
You Save: $45.86 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 21010-31U85
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2000-2002 Nissan Pathfinder | LE, SE, XE | 6 Cyl 3.5L | VQ35DE
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Nissan Pathfinder Pump Ass Wat
Part Number: 21010-12G25
$95.65 MSRP: $138.38
You Save: $42.73 (31%)
ADD TO CART
Product Specifications
- Other Name: Pump Assy-Water
- Replaced by: 21010-12G28
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1987-1988 Nissan Pathfinder | SE, ST | 6 Cyl 3.0L | VG30I
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Nissan Pathfinder Motor Assy-Sub,Cooling
Part Number: 21580-3JV0A
$483.56 MSRP: $644.75
You Save: $161.19 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Water Pump
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2014 Nissan Pathfinder | Platinum, SL, SV | 4 Cyl 2.5L | QR25DER
View related parts
Nissan Pathfinder Pump Assy-Water
Part Number: 21010-31U85
$88.01 MSRP: $133.87
You Save: $45.86 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Water Pump, Water Pump Assembly
- Replaces: 21010-31U28, 21010-31U25, 21010-31U27, 21010-31U26, 21010-31U29
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2000-2004 Nissan Pathfinder | LE, SE, XE | 6 Cyl 3.5L | VQ35DE
View related parts
Nissan Pathfinder Pump Assy-Water
Part Number: 21010-6KA0A
$158.26 MSRP: $240.73
You Save: $82.47 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 21010-6KA1A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2016-2019 Nissan Pathfinder | Platinum, S, SL, SV | 6 Cyl 3.5L | VQ35DD
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Nissan Pathfinder Pump Water
Part Number: 21010-0W028
$167.43 MSRP: $223.23
You Save: $55.80 (25%)
ADD TO CART
Limited Availability
Product Specifications
- Other Name: Pump Assy-Water
- Replaced by: B1010-0W00J
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2001-2003 Nissan Pathfinder | XE | 6 Cyl 3.3L | VG33E
View related parts
Nissan Pathfinder Pump Assy-Water
Part Number: 21010-31U29
$88.01 MSRP: $133.87
You Save: $45.86 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 21010-31U85
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2001-2003 Nissan Pathfinder | LE, SE | 6 Cyl 3.5L | VQ35DE
View related parts
Nissan Pathfinder Water Pump
Part Number: 21010-80W25
$212.00 MSRP: $282.67
You Save: $70.67 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy-Water
- Manufacturer Note: FOR AIR CONDITIONER
- Replaced by: BA010-80W89
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1987-1989 Nissan Pathfinder | DX | 4 Cyl 2.4L | Z24I
View related parts
Nissan Pathfinder Water Pump
Part Number: 21010-80W26
$212.00 MSRP: $282.67
You Save: $70.67 (25%)
ADD TO CART
Limited Availability
Product Specifications
- Other Name: Pump Assy-Water
- Replaced by: BA010-80W89
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1987-1989 Nissan Pathfinder | DX | 4 Cyl 2.4L | Z24I
View related parts
Nissan Pathfinder Pump Assembly Water
Part Number: 21010-7Y00A
Product Specifications
- Other Name: Pump Assy-Water; Water Pump
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2005-2008 Nissan Pathfinder | LE, S, SE, SE Off-Road, XE | 6 Cyl 4.0L | VQ40DE
View related parts
Nissan Pathfinder Water Pump
Part Number: 21010-G3926
Product Specifications
- Other Name: Pump Assy-Water
- Replaced by: 21010-G3928
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1988-1990 Nissan Pathfinder | DX | 4 Cyl 2.4L | Z24I
View related parts
Nissan Pathfinder Water Pump
Part Number: 21010-G3927
Product Specifications
- Other Name: Pump Assy-Water
- Replaced by: 21010-G3928
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1988-1990 Nissan Pathfinder | DX | 4 Cyl 2.4L | Z24I

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1-20 of 21 Results

Nissan Pathfinder Water Pump

If you need any OEM Nissan Pathfinder Water Pump, feel free to choose them out of our huge selection of genuine Nissan Pathfinder Water Pump. All our parts are offered at unbeatable prices and are supported by the manufacturer's warranty. In addition, we offer quick shipping to have your parts delivered to your door step in a matter of days.

Nissan Pathfinder Water Pump Parts Questions & Experts Answers

Pump Assy-Water
21010-31U28
Q: How to inspect, diagnose and replace a water pump in a Nissan Pathfinder's engine cooling system?
A: A failure in the water pump can cause serious engine damage due to overheating. There are two ways to check the operation of the water pump while it's installed on the engine. If defective, it should be replaced with a new or rebuilt unit. Water pumps have weep holes located on their underside. Coolant will leak from this hole if the pump seal fails. On 3.3L V6 engines, use a flashlight and a small mirror to find the hole on the water pump from underneath. On 3.5L V6 engines, the weep hole directs coolant out between the timing chain cover and the engine block. If the water pump shaft bearings fail, a howling sound might be heard. Shaft wear on four-cylinder and 3.3L V6 engines can be detected by rocking the water pump pulley with the drive belt removed. On 3.5L V6 engines, rock the water pump sprocket after relieving the main timing chain tension. Sometimes impellers corrode, affecting cooling efficiency. For replacement, disconnect the battery's negative terminal, drain the coolant, remove the drive belts, engine cooling fan, water pump/fan pulley, upper radiator hose, fan shroud, and, on 3.3L V6 engines, the idler pulley bracket, crankshaft pulley, and timing belt covers. On 3.5L V6, remove the drain plug, timing chain tensioner cover, and water pump cover. Rotate the crankshaft 20 degrees counterclockwise for 3.5L V6. Remove the water pump and clean bolt threads and threaded holes. Compare pumps, clean mating surfaces with lacquer thinner or acetone, and apply sealant. Attach the new pump finger tight, then tighten bolts in 1/4-turn increments. On 3.5L V6, rotate the crankshaft 20 degrees clockwise and reinstall all removed parts. Wait an hour, then refill and bleed the cooling system. Run the engine to check for leaks and proper operation. Timing chain noise on 3.5L V6 engines after this procedure is normal until the air has bled out. Start the engine and let it run at 3,000rpm until the noise subsides.