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          AISIN WPF-023 - Engine Water Pump

          MPN: WPF-023
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $70.95
          In stock

          Product Overview

          The AISIN WPF-023 Engine Water Pump is designed to provide optimal cooling and lubrication for your vehicle's engine. This high-quality water pump ensures reliable performance and a perfect fit, meeting OE standards for Subaru models. With AISIN's reputation for excellence, you can trust that this water pump will deliver the durability and efficiency your vehicle needs. Choose AISIN WPF-023 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This AISIN WPF-023 is equivalent to or replaces the following part numbers: X2111-AA080, X2111AA080, 21111-AA022, 21111AA022, 21111-AA020, 21111AA020, 21111-AA023, 21111AA023, 21111-AA025, 21111AA025, 21111-AA021, 21111AA021, X2111-AA081, X2111AA081, X2111-AA082, X2111AA082, X2111-AA240, X2111AA240, 21111-AA026, 21111AA026, WPF023, 131-2446, 1312446, 160-1150, 1601150, F3-019, F3019, NP1516, 18-813, 18813, 42282, AW9215, 1523008, 546-02040, 54602040, F-25, F25, PWP-863, PWP863, 43513, 5573411, 9215, US9215, WP-863, WP863, 131-2190, 1312190, 2-863, 2863, 20632, 226038, 43548, 55-73411, CP9215, WP718, 97260, 160-2040, 1602040, 252-246, 252246, 1600-99087, 160099087, 57-1364, 571364, F-19, F19.

          Vehicle Compatibility

          • Subaru Legacy (1991-2009)
          • Subaru Impreza (2002-2014)
          • Subaru Baja (2004-2006)
          • Subaru Forester (2004-2007)
          • Subaru Outback (2005-2009)
          • Subaru WRX STI (2015-2019)

          This also fits other applications. Please use the vehicle selector tool to verify fitment.

          Why Choose Newparts.com?

          • Trusted by DIYers and pros for over 15 years
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          Frequently Asked Questions

          What are the symptoms of a failing water pump?

          Common signs include engine overheating, coolant leaks, and unusual noises coming from the engine. If you experience any of these, consider replacing it with the AISIN WPF-023.

          How often should I replace my engine water pump?

          It is generally recommended to replace the water pump every 60,000 to 100,000 miles or during major engine service intervals. For a reliable replacement, choose AISIN WPF-023.

          What DTCs should I look for related to the water pump?

          Common Diagnostic Trouble Codes (DTCs) related to water pump failure include P0128, P0217, and P2601. If you encounter these codes, the AISIN WPF-023 could be the solution you need.

          Can I install the AISIN WPF-023 myself?

          Yes, with the right tools and knowledge, you can install the AISIN WPF-023 Engine Water Pump yourself, but it’s always advisable to consult a professional if you're unsure.

          Why should I buy the AISIN WPF-023?

          Order AISIN WPF-023 today for a factory-correct replacement that restores safety and performance.

            • Newparts SKU
              204464
            • Weight
              3.74 lbs
            • Barcode
              4954514920209
            • Dimensions (L x W x H)
              8.12 x 5.76 x 6.12 in
            • Manufacturer Part #
              WPF-023
          • Brand
            AISIN
          • Manufacturer
            AISIN
          • MPN
            WPF-023
          • OE Part Numbers
            X2111-AA080, X2111AA080, 21111-AA022, 21111AA022, 21111-AA020, 21111AA020, 21111-AA023, 21111AA023, 21111-AA025, 21111AA025, 21111-AA021, 21111AA021, X2111-AA081, X2111AA081, X2111-AA082, X2111AA082, X2111-AA240, X2111AA240, 21111-AA026, 21111AA026, 21111-AA240, 21111AA240
          • Cross Reference Numbers
            WPF023, 131-2446, 1312446, 160-1150, 1601150, F3-019, F3019, NP1516, 18-813, 18813, 42282, AW9215, WPF-023, 1523008, 546-02040, 54602040, F-25, F25, PWP-863, PWP863, 43513, 5573411, 9215, US9215, WP-863, WP863, 131-2190, 1312190, 2-863, 2863, 20632, 226038, 43548, 55-73411, CP9215, WP718, 97260, 160-2040, 1602040, 252-246, 252246, 1600-99087, 160099087, 57-1364, 571364, F-19, F19
          • Part Type
            Engine Water Pump
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2008SubaruImpreza2.5i (2.5 H4 GAS)Engine: EJ257
          2008SubaruImprezaOutback Sport (2.5 H4 GAS)Engine: EJ257
          2008SubaruImprezaWRX (2.5 H4 GAS)Engine: EJ257
          2008SubaruImprezaWRX STI (2.5 H4 GAS)Engine: EJ257
          2008SubaruOutback2.5i (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruOutback2.5i L.L. Bean Edition (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruOutback2.5i Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruOutback2.5i Limited L.L. Bean Edition (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruOutbackBase (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruOutbackXT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruLegacy2.5i (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruLegacy2.5i Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruLegacy2.5i Special Edition (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruLegacyGT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2008SubaruLegacyGT spec.B (2.5 H4 GAS)Aspiration: Turbocharged
          2009SubaruImpreza2.5 GT (2.5 H4 GAS)Engine: EJ257
          2009SubaruImpreza2.5i (2.5 H4 GAS)Engine: EJ257
          2009SubaruImprezaOutback Sport (2.5 H4 GAS)Engine: EJ257
          2009SubaruImprezaWRX (2.5 H4 GAS)Engine: EJ257
          2009SubaruImprezaWRX Premium (2.5 H4 GAS)Engine: EJ257
          2009SubaruImprezaWRX STI (2.5 H4 GAS)Engine: EJ257
          2009SubaruLegacy2.5i (2.5 H4 GAS)Aspiration: Turbocharged
          2009SubaruLegacy2.5i Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2009SubaruLegacy2.5i Special Edition (2.5 H4 GAS)
          2010SubaruImprezaWRX STI (2.5 H4 GAS)
          2011SubaruImprezaWRX STI (2.5 H4 GAS)
          2012SubaruImprezaWRX STI (2.5 H4 GAS)
          2013SubaruImprezaWRX STI (2.5 H4 GAS)
          2014SubaruImprezaWRX STI (2.5 H4 GAS)
          1991SubaruLegacyL (2.2 H4 GAS)Aspiration: Turbocharged
          1991SubaruLegacyLS (2.2 H4 GAS)Aspiration: Turbocharged
          1991SubaruLegacyLSi (2.2 H4 GAS)Aspiration: Turbocharged
          1991SubaruLegacySport (2.2 H4 GAS)Aspiration: Turbocharged
          2003SubaruImprezaWRX (2.0 H4 GAS)
          2002SubaruImprezaWRX (2.0 H4 GAS)
          2007SubaruOutback2.5i (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruOutback2.5i Basic (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruOutback2.5i Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruOutbackXT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruLegacy2.5i (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruLegacy2.5i Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruLegacy2.5i Special Edition (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruLegacyGT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruLegacyGT spec.B (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruImpreza2.5i (2.5 H4 GAS)Engine: EJ255
          2007SubaruImprezaOutback Sport (2.5 H4 GAS)Engine: EJ255
          2007SubaruImprezaWRX (2.5 H4 GAS)Engine: EJ255
          2007SubaruImprezaWRX Limited (2.5 H4 GAS)Engine: EJ255
          2007SubaruImprezaWRX STI (2.5 H4 GAS)Engine: EJ255
          2007SubaruImprezaWRX STI Limited (2.5 H4 GAS)Engine: EJ255
          2007SubaruImprezaWRX TR (2.5 H4 GAS)Engine: EJ255
          2007SubaruForesterX (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruForesterX L.L. Bean Edition (2.5 H4 GAS)Aspiration: Turbocharged
          2007SubaruForesterXT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruOutback2.5i (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruOutback2.5i Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruOutbackXT (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruOutbackXT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruLegacy2.5i (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruLegacyGT (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruLegacyGT spec.B (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruImpreza2.5i (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruImprezaOutback Sport (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruImprezaWRX (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruImprezaWRX Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruImprezaWRX STI (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruImprezaWRX TR (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruForesterX (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruForesterX L.L. Bean Edition (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruForesterXT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruBajaSport (2.5 H4 GAS)Aspiration: Turbocharged
          2006SubaruBajaTurbo (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruBajaSport (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruBajaTurbo (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruImprezaOutback Sport (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruImprezaRS (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruImprezaWRX (2.0 H4 GAS)
          2005SubaruImprezaWRX STI (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruOutbacki (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruOutbackLimited (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruOutbackXT (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruOutbackXT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruForesterX (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruForesterXS (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruForesterXS L.L. Bean Edition (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruForesterXT (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruForesterXT Premium (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruLegacyGT (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruLegacyGT Limited (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruLegacyi (2.5 H4 GAS)Aspiration: Turbocharged
          2005SubaruLegacyLimited (2.5 H4 GAS)Aspiration: Turbocharged
          2004SubaruImprezaOutback (2.5 H4 GAS)Aspiration: Turbocharged
          2004SubaruImprezaRS (2.5 H4 GAS)Aspiration: Turbocharged
          2004SubaruImprezaTS (2.5 H4 GAS)Aspiration: Turbocharged
          2004SubaruImprezaWRX (2.0 H4 GAS)
          2004SubaruImprezaWRX STI (2.5 H4 GAS)Aspiration: Turbocharged
          2004SubaruForesterX (2.5 H4 GAS)Aspiration: Turbocharged
          2004SubaruForesterXS (2.5 H4 GAS)Aspiration: Turbocharged
          2004SubaruForesterXT (2.5 H4 GAS)Aspiration: Turbocharged
          2004SubaruBajaSport (2.5 H4 GAS)Aspiration: Turbocharged
          There are more vehicles this part is compatible with. Check if it fits your vehicle.
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          Warranty Overview

          At Newparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.

          Standard Warranty – Most Parts

          • Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.

          • Protection: Defects in materials or workmanship under normal personal use.

          • Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.

          • Exclusions:

            • Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)

            • Commercial, fleet, rideshare, off-road, or racing use

            • Improper installation, misuse, accidents, or modifications

          • Not Covered: Labor, shipping, towing, or incidental costs.

          Bison Performance Warranty – Our House Brand

          • Coverage: Limited Lifetime Warranty for as long as you own your vehicle.

          • Applies To: All products sold under the Bison Performance label.

          • Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.

          • Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).

          • What’s Included: Replacement of the defective product (labor and shipping excluded).

          Warranty Claim Requirements

          To keep claims fast and fair, we require:

          • Proof of purchase (invoice or order confirmation).

          • Photos or videos showing the defective part, order number, date, VIN, and odometer reading.

          • Diagnostic reports or part returns for non-visible issues may be requested.

          • Claims must be truthful, properly documented, and reflect normal consumer use.

          Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.

          For full details and exclusions, please see our complete Warranty Terms & Conditions.


          This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.

          Return Policy Overview

          Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
          To start a return, use our Return Portal or contact support.

          • Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)

          • Refunds: Issued to your original payment method within 3–5 business days after inspection

          • Exchanges: Not automatic — please return and reorder

          • Replacements: May be approved for incorrect or defective items reported within 7 days

          Not returnable:

          • Used or installed parts

          • Electrical components

          • Opened filter kits, gaskets, or contaminated items

          • Final sale or custom orders

          Important Notes:

          • Return shipping is your responsibility unless we made a verified error

          • Fitment is the customer’s responsibility (we can assist, but do not guarantee)

          • Country of origin may vary and is not grounds for return

          For complete details, please see our full Return Policy.



          This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.

          Fast, Reliable Shipping — Straight to Your Door

          We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.

          • We use trusted carriers like UPS, FedEx, and USPS.

          • Tracking info is emailed to you as soon as your order ships.

          • Delivery estimates at checkout are based on carrier data, but not guaranteed.

          Need help with a shipment?

          If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.

          For full details, please see our complete Shipping Policy.


          This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions,  risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.

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