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Genuine Subaru Impreza STI Water Pump

H2O Pump
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5 Water Pumps found

  • Diagram for Subaru Impreza STI Water Pump - 21111AA240
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    Subaru Impreza STI Water Pump Complete

    Part Number: 21111AA240
    $112.88 MSRP: $163.60
    You Save: $50.72 (31%)
    Ships in 1-3 Business Days
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    Product Specifications
    • Other Name: Water Pump
    • Manufacturer Note: OIL COOLER O
    • Warranty: This genuine part is guaranteed by Subaru's factory warranty.
    Fits the following Vehicles:
    • 2004-2014 Subaru Impreza STI | STI, STI Limited, STI Special Edition, STI Sport, WRX, WRX TR | 2.0L H4 Turbo, 2.5L H4 Turbo
  • Diagram for Subaru Impreza STI Water Pump - 21111AA007
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    Subaru Impreza STI Water Pump

    Part Number: 21111AA007
    $83.61 MSRP: $121.17
    You Save: $37.56 (31%)
    Ships in 1-3 Business Days
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    Product Specifications
    • Other Name: Water Pump Complete
    • Replaces: 21111AA001, 21111AA003, 21111AA004, 21111AA000, 21111AA002, 21111AA006, 21111AA005
    • Warranty: This genuine part is guaranteed by Subaru's factory warranty.
    Fits the following Vehicles:
    • 2004-2005 Subaru Impreza STI | Outback, RS, TS | 2.5L H4
  • Diagram for Subaru Impreza STI Water Pump - 21111AA250
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    Subaru Impreza STI Water Pump Complete

    Part Number: 21111AA250
    $105.34 MSRP: $152.67
    You Save: $47.33 (31%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Water Pump
    • Manufacturer Note: OIL COOLER X
    • Warranty: This genuine part is guaranteed by Subaru's factory warranty.
    Fits the following Vehicles:
    • 2008-2014 Subaru Impreza STI | 2.5 GT, WRX, WRX Sport, WRXSS | 2.5L H4 Turbo
  • Diagram for Subaru Impreza STI Water Pump - 21111AA280
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    Subaru Impreza STI Water Pump Complete

    Part Number: 21111AA280
    $132.50 MSRP: $192.03
    You Save: $59.53 (31%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Water Pump
    • Warranty: This genuine part is guaranteed by Subaru's factory warranty.
    Fits the following Vehicles:
    • 2006-2011 Subaru Impreza STI | 2.5i, 25i, Outback, Outback Sport | 2.5L H4
  • Diagram for Subaru Impreza STI Water Pump - 21111AA026
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    Subaru Impreza STI Water Pump

    Part Number: 21111AA026
    $127.65 MSRP: $185.00
    You Save: $57.35 (31%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Water Pump Complete
    • Replaces: 21111AA023, 21111AA022, 21111AA021, 21111AA025
    • Warranty: This genuine part is guaranteed by Subaru's factory warranty.
    Fits the following Vehicles:
    • 2004 Subaru Impreza STI | WRX | 2.0L H4 Turbo

Subaru Impreza STI Water Pump

The Subaru Impreza STI Water Pump ensures a consistent flow of coolant to the turbo boxer engine, preventing overheating during strong accelerations. Beloved over the decades, this Water Pump bolts low down on the engine. It spins with the crank pulley. Its lightweight aluminum casting drops unwanted weight. Yet it pulls heat away faster than the older iron units. The Water Pump features a tough shaft bearing and a tight mechanical seal to prevent leaks, whines, and sudden temperature spikes, allowing Subaru drivers to confidently tackle mountain roads and track days. The Impreza STI Water Pump benefits from an engine speed proportional flow as it caters for the speedy revs of every Impreza STI model, including GD sedans through to modern hatchbacks, without any sophisticated electronics. A factory relief every Subaru Impreza STI model has been tuned with this in mind. The component is crucial to the overall efficiency, keeping combustion temperatures optimal, so fuel burns clean and power stays strong, while also protecting head gaskets which enhances long term safety and reliability for Subaru enthusiasts. Give the Water Pump a replacement before overheating warps the aluminum heads. Look for visible warning signs like coolant dripping behind the timing cover or a grinding noise. Unlike many rival Water Pumps, the balanced impeller design reduces vibration while the corrosion resistant housing directly fits many factory gaskets and thermostat housings for quick installation. The Subaru cooling system is known for its lightweight and durable design which dispenses water through a pump that is perfectly matched to the boxer layout. This Water Pump not only prepares every Impreza STI for spirited driving but also has decades of Subaru rally success behind it.

Our website stands as the go-to online destination for OEM Subaru Impreza STI Water Pump. With complete lines of genuine Subaru Impreza STI Water Pump available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

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