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Subaru Water Pumps

21151AA120 - : Engine Water Pump Pulley for Subaru Image

Engine Water Pump Pulley

Subaru 21151AA120
$36.02
MSRP $52.20
Save $16.18
31% Off
21151AA110 - : Engine Water Pump Pulley for Subaru Image

Engine Water Pump Pulley

Subaru 21151AA110
2.0L.
$35.03
MSRP $50.77
Save $15.74
31% Off
800406070 - : Water Pump Mount Bolt for Subaru Image

Water Pump Mount Bolt

Subaru 800406070
2008-14. 3.6L.
$1.55
MSRP $2.00
Save $0.45
22.5% Off
21114AA063 - : Engine Water Pump Gasket for Subaru Image

Engine Water Pump Gasket

Subaru 21114AA063
Gasket. 2006-07.
$7.26
MSRP $9.38
Save $2.12
22.6% Off
21114AA000 - : Engine Water Pump Gasket for Subaru Image

Engine Water Pump Gasket

Subaru 21114AA000
Gasket.
$2.32
MSRP $3.00
Save $0.68
22.7% Off
21170AA010 - : Engine Water Pump Drain Plug for Subaru Image

Engine Water Pump Drain Plug

Subaru 21170AA010
2.5L turbo. 2.0L.
$1.10
MSRP $1.70
Save $0.60
35.3% Off
45720FL000 - : Drive Motor Inverter Cooler Water Pump for Subaru Image

Drive Motor Inverter Cooler Water Pump

Subaru 45720FL000
$322.82
MSRP $480.38
Save $157.56
32.8% Off
21110AA260 - : Water Pump For Remanufactured Pgm Only for Subaru Image

Water Pump For Remanufactured Pgm Only

Subaru 21110AA260
$126.20
MSRP $187.80
Save $61.60
32.8% Off
21114AA051 - : Gasket for Subaru Image

Gasket

Subaru 21114AA051
$4.24
MSRP $5.48
Save $1.24
22.6% Off
45720SL000 - : Auxiliary Pump for Subaru Image

Auxiliary Pump

Subaru 45720SL000
With hybrid.
$113.62
MSRP $166.12
Save $52.50
31.6% Off
21135AA090 - : Cover for Subaru Image

Cover

Subaru 21135AA090
With hybrid.
$16.19
MSRP $20.92
Save $4.73
22.6% Off
21151AA100 - : Pulley for Subaru Image

Pulley

Subaru 21151AA100
2.5L without turbo, 2011-13. 2.5L without turbo, 2013-14.
$35.06
MSRP $50.82
Save $15.76
31% Off

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Without the water pump, coolant can’t circulate properly, and that can quickly lead to overheating and severe engine damage. If your pump is leaking or worn, replacing it should be a priority to avoid expensive repairs.

Everything to Know About Replacing Your Water Pump

How to Replace the Water Pump in Your Subaru Forester

1. Drain the Coolant System

Begin by safely draining the coolant to prevent spills when removing the old Subaru Forester water pump.

2. Disconnect the Battery

Remove the negative battery cable to avoid electrical shorts or injuries during the repair.

3. Remove the Drive Belts

Detach any belts and pulleys obstructing access to the Subaru water pump.

4. Detach the Old Water Pump

Unbolt and remove the old pump, making sure to catch any remaining coolant and clean the gasket surface.

5. Install the New Water Pump

Position the new Subaru water pump with a fresh gasket and torque it down to factory specs.

6. Reassemble and Refill

Reinstall belts, reconnect hoses, and refill the cooling system with fresh coolant.

7. Bleed the Cooling System

Start the engine and let it run to remove air pockets, ensuring consistent coolant flow and temperature regulation.

8. Inspect for Leaks

After a short drive, double-check for leaks and confirm the water pump is working correctly.

For best results, always choose genuine Subaru parts that are designed for exact fit and long-term reliability. Order here for incredible deals on OEM replacement parts and available upgrades. Contact us anytime if you have questions.