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          AISIN WQT-002 - Drive Motor Inverter Cooler Water Pump

          MPN: WQT-002
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $122.95
          In stock

          Product Overview

          The AISIN WQT-002 Drive Motor Inverter Cooler Water Pump is designed to ensure optimal cooling for your vehicle's hybrid drive motor, enhancing performance and longevity. This essential component provides OE-level quality, reliability, and fitment, making it the perfect replacement for your vehicle's cooling system. Trust in AISIN, a leading brand in automotive parts, known for its commitment to excellence across various vehicle makes, including Lexus and Toyota. Choose AISIN WQT-002 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This AISIN WQT-002 is equivalent to or replaces the following part numbers: G9040-33030, G904033030, G9040-33040, G904033040, WQT002, WQT-002.

          Vehicle Compatibility

          • Lexus ES300h (2013-2018) 2.5
          • Toyota Avalon (2013-2018) 2.5
          • Toyota Mirai (2016-2018)

          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 is the function of the AISIN WQT-002 Drive Motor Inverter Cooler Water Pump?

          The AISIN WQT-002 is designed to maintain the optimal temperature of the drive motor inverter, ensuring efficient operation and preventing overheating.

          Which vehicles are compatible with the AISIN WQT-002?

          This water pump is compatible with the Lexus ES300h (2013-2018), Toyota Avalon (2013-2018), and Toyota Mirai (2016-2018).

          What are some common issues that the AISIN WQT-002 can help resolve?

          Replacing the AISIN WQT-002 can help address overheating issues associated with the hybrid drive motor, ensuring reliability and performance.

          Are there any Diagnostic Trouble Codes (DTCs) related to the AISIN WQT-002?

          While specific DTCs may vary, issues with the inverter cooling system can sometimes trigger codes related to overheating or cooling efficiency, which may affect the hybrid system's performance.

          Why should I choose AISIN WQT-002 over other brands?

          AISIN is recognized for its high-quality manufacturing and rigorous testing processes, ensuring you receive a reliable part that fits perfectly and performs as intended.

          Order AISIN WQT-002 today for a factory-correct replacement that restores safety and performance.

            • Newparts SKU
              204706
            • Weight
              5.54 lbs
            • Dimensions (L x W x H)
              5.47 x 4.37 x 4.84 in
            • Barcode
              4954514952668
            • Manufacturer Part #
              WQT-002
          • Brand
            AISIN
          • Manufacturer
            AISIN
          • MPN
            WQT-002
          • OE Part Numbers
            G9040-33030, G904033030, G9040-33040, G904033040
          • Cross Reference Numbers
            WQT002, WQT-002
          • Part Type
            Drive Motor Inverter Cooler Water Pump
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2016ToyotaAvalonHybrid Limited (2.5 L4 FHEV)
          2016ToyotaAvalonHybrid XLE Plus (2.5 L4 FHEV)
          2016ToyotaAvalonHybrid XLE Premium (2.5 L4 FHEV)
          2016ToyotaMiraiBase (FCEV)Notes: Water Heater Pump
          2016LexusES300hBase (2.5 L4 FHEV)
          2017ToyotaAvalonHybrid Limited (2.5 L4 FHEV)
          2017ToyotaAvalonHybrid XLE Plus (2.5 L4 FHEV)
          2017ToyotaAvalonHybrid XLE Premium (2.5 L4 FHEV)
          2017ToyotaMiraiBase (FCEV)Notes: Water Heater Pump
          2017LexusES300hBase (2.5 L4 FHEV)
          2013ToyotaAvalonHybrid Limited (2.5 L4 FHEV)
          2013ToyotaAvalonHybrid XLE (2.5 L4 FHEV)
          2013LexusES300hBase (2.5 L4 FHEV)
          2014ToyotaAvalonHybrid Limited (2.5 L4 FHEV)
          2014ToyotaAvalonHybrid XLE (2.5 L4 FHEV)
          2014LexusES300hBase (2.5 L4 FHEV)
          2015ToyotaAvalonHybrid Limited (2.5 L4 FHEV)
          2015ToyotaAvalonHybrid XLE Premium (2.5 L4 FHEV)
          2015ToyotaAvalonHybrid XLE Touring (2.5 L4 FHEV)
          2015LexusES300hBase (2.5 L4 FHEV)
          2018ToyotaAvalonHybrid Limited (2.5 L4 FHEV)
          2018ToyotaAvalonHybrid XLE Plus (2.5 L4 FHEV)
          2018ToyotaAvalonHybrid XLE Premium (2.5 L4 FHEV)
          2018ToyotaMiraiBase (FCEV)Notes: Water Heater Pump
          2018LexusES300hBase (2.5 L4 FHEV)
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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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