Walker 245-1597 Mass Air Flow Sensor
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Walker
 Sensor Only

Walker 245-1597 Mass Air Flow Sensor

Brand Walker 245-1597
Color Black
Terminal Type Pin
Wire Quantity 4
Connector Quantity 1
Connector Shape Oblong
Mounting Hole Quantity 2
Terminal Quantity 4
Connector Gender Male
Product line Sensor Only
Fits Lexus and Toyota · 49 vehicles

Sensor only replacement. Faster and more economical than a complete assembly.

100% new. Never remanufactured, with production testing for fit, form, and function.

Custom tuned flow. Engineered for the full flow spectrum and OE fuel trim performance.

Cross-references 2220424010 for the same application. See all 1.

$193.67Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $193.67
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Mass Air Flow Sensor options

Walker Sensor Only Mass Air Flow Sensor

Walker part number 245-1597 is a sensor-only mass air flow sensor for select Lexus and Toyota applications. It is built as a new, tested replacement sensor with OE-style fit, form, and function, making it a practical choice for drivers addressing drivability or fuel-trim concerns.

Sensor Line Details

Walker’s Sensor Only line is designed for faster, more economical MAF replacement when the housing does not need to be replaced. This program includes 100% new sensors, production testing, and application-specific calibration work to help maintain proper airflow measurement across the operating range.

Key Features

  • Part number 245-1597 sensor-only mass air flow sensor
  • Black housing with oblong connector shape
  • 4-wire, 4-terminal design with 1 male connector
  • 2 mounting holes for application-specific installation
  • New, programmed, and tested before release
  • Built to meet OE-style fuel trim and airflow calibration targets
  • Walker Products manufacturing heritage dating back to 1946

Detailed Description

Walker 245-1597 is a mass air flow sensor replacement for vehicles including the 2024-2026 Lexus GX550, 2022-2026 Lexus LX600, 2025-2026 Lexus LX700h, 2019-2024 Lexus UX250h, 2025 Lexus UX300h, and select Toyota models such as the 2025-2026 4Runner, 2025-2026 Camry, 2023-2026 Corolla, 2024-2026 Corolla Cross, 2024-2026 Land Cruiser, 2023-2026 Prius, 2023-2026 Sequoia, 2024-2026 Tacoma, 2022-2026 Tundra, and 2023-2024 Prius Prime. It is also a direct-fit sensor-only replacement for Lexus and Toyota vehicles that use this application, including the 2024-2026 Toyota Tacoma and 2022-2026 Toyota Tundra. This part cross-references Toyota 2220424010 for the same application.

What This Sensor Helps Address

  • Rough idle caused by inaccurate airflow readings
  • Check engine lights related to MAF sensor performance
  • Hesitation or poor throttle response
  • Fuel trim issues from a failing or contaminated sensor
  • Reduced engine efficiency from incorrect air metering

Installation Notes and Tips

Confirm the connector style, wire count, and mounting layout before installation. Because this is a sensor-only design, inspect the air tube and connector area for dirt, oil residue, or contamination before installing the new sensor. Handle the sensing element carefully to avoid damage from skin oils or debris.

Quality Assurance

Walker Products manufactures fuel system and engine sensor components in ISO 9001 and IATF 16949 certified facilities. Each MAF sensor is programmed and tested for fit, form, and function, with verification through production testing and on-vehicle validation.

Related reading

This part fits 49 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2026LexusGX5503.4LV6Sensor Only
2026LexusLX6003.4LV6Sensor Only
2026LexusLX700h3.4LV6Sensor Only
2026Toyota4Runner2.4LL4Sensor Only
2026ToyotaCamry2.5LL4Sensor Only
2026ToyotaCorolla1.8LL4Sensor Only
2026ToyotaCorolla Cross2.0LL4Sensor Only
2026ToyotaLand Cruiser2.4LL4Sensor Only
2026ToyotaPrius2.0LL4Sensor Only
2026ToyotaSequoia3.4LV6Sensor Only
2026ToyotaTacoma2.4LL4Sensor Only
2026ToyotaTundra3.4LV6Sensor Only
2025LexusGX5503.4LV6Sensor Only
2025LexusLX6003.4LV6Sensor Only
2025LexusLX700h3.4LV6Sensor Only
2025LexusUX300h2.0LL4Sensor Only
2025Toyota4Runner2.4LL4Sensor Only
2025ToyotaCamry2.5LL4Sensor Only
2025ToyotaCorolla1.8LL4Sensor Only
2025ToyotaCorolla Cross2.0LL4Sensor Only
2025ToyotaLand Cruiser2.4LL4Sensor Only
2025ToyotaPrius2.0LL4Sensor Only
2025ToyotaSequoia3.4LV6Sensor Only
2025ToyotaTacoma2.4LL4Sensor Only
2025ToyotaTundra3.4LV6Sensor Only
2024LexusGX5503.4LV6Sensor Only
2024LexusLX6003.4LV6Sensor Only
2024LexusUX250h2.0LL4Sensor Only
2024ToyotaCorolla1.8LL4Sensor Only
2024ToyotaCorolla Cross2.0LL4Sensor Only
2024ToyotaLand Cruiser2.4LL4Sensor Only
2024ToyotaPrius2.0LL4Sensor Only
2024ToyotaPrius Prime2.0LL4Sensor Only
2024ToyotaSequoia3.4LV6Sensor Only
2024ToyotaTacoma2.4LL4Sensor Only
2024ToyotaTundra3.4LV6Sensor Only
2023LexusLX6003.4LV6Sensor Only
2023LexusUX250h2.0LL4Sensor Only
2023ToyotaCorolla1.8LL4Sensor Only
2023ToyotaPrius2.0LL4Sensor Only
2023ToyotaPrius Prime2.0LL4Sensor Only
2023ToyotaSequoia3.4LV6Sensor Only
2023ToyotaTundra3.4LV6Sensor Only
2022LexusLX6003.4LV6Sensor Only
2022LexusUX250h2.0LL4Sensor Only
2022ToyotaTundra3.4LV6Sensor Only
2021LexusUX250h2.0LL4Sensor Only
2020LexusUX250h2.0LL4Sensor Only
2019LexusUX250h2.0LL4Sensor Only
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
2220424010