{"product_id":"walker-245-1621-mass-air-flow-sensor","title":"Walker 245-1621 Mass Air Flow Sensor","description":"\u003ch2\u003eWalker Sensor Only Mass Air Flow Sensor\u003c\/h2\u003e\u003cp\u003eWalker 245-1621 is a sensor-only mass air flow sensor built for direct replacement service on select Mazda applications. It is a standard replacement part with a black plastic housing, 5-wire pin terminal design, and a female oblong connector for a factory-style connection.\u003c\/p\u003e\u003cp\u003eCompatible With Mazda MX-5 Miata, Mazda 3, Mazda CX-5, Mazda CX-50, Mazda 2, Mazda CX-30, Mazda MX-5, Mazda 6, and Mazda CX-3 applications listed below. The Walker Sensor Only line is designed for faster, more economical MAF service when the housing does not need replacement.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSensor-only mass air flow sensor for targeted replacement service\u003c\/li\u003e\n\u003cli\u003eWalker part number 245-1621\u003c\/li\u003e\n\u003cli\u003eBlack plastic housing with flange mounting\u003c\/li\u003e\n\u003cli\u003e5-wire, 5-terminal pin connection with 1 female connector\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade for OE-style service\u003c\/li\u003e\n\u003cli\u003eHousing included for this application listing\u003c\/li\u003e\n\u003cli\u003eMounting hardware included for this application listing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eWalker Products builds this MAF sensor as a new, tested replacement component rather than a remanufactured unit. The sensor is programmed and verified for fit, form, and function before release, and Walker uses custom tuned flow characteristics to match the vehicle’s airflow range. For Mazda drivers, that means a direct-fit service part for restoring accurate airflow measurement on vehicles such as the Mazda 3, Mazda CX-5, and Mazda MX-5 Miata. Part number 245-1621 is also cross-referenced to PYFS13215 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat This Sensor Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRough idle caused by inaccurate airflow readings\u003c\/li\u003e\n\u003cli\u003eCheck engine light related to mass air flow sensor performance\u003c\/li\u003e\n\u003cli\u003eHesitation or poor throttle response\u003c\/li\u003e\n\u003cli\u003eFuel trim issues from incorrect air metering\u003c\/li\u003e\n\u003cli\u003eReduced drivability from a failing MAF sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eBefore installation, inspect the air intake tract, connector, and surrounding surfaces for dirt, oil, or damage. Handle the sensor carefully to avoid contamination, and confirm the connector shape, terminal count, and mounting style match the original unit. For sensor-only service, reuse the existing housing only if it is clean and in good condition.\u003c\/p\u003e\u003cp\u003eFits 2020-2025 Mazda MX-5 Miata, sensor only; 2019-2024 Mazda 3, sensor only; 2018-2024 Mazda CX-5, sensor only; 2023-2024 Mazda CX-50, sensor only; 2018-2023 Mazda 2, sensor only; 2020-2023 Mazda CX-30, sensor only; 2019-2023 Mazda MX-5, sensor only; 2018-2021 Mazda 6, sensor only; 2019-2021 Mazda CX-3, sensor only.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eWalker Products has supplied fuel system components since 1946 and is an ISO 9001 and IATF 16949 certified manufacturer. This MAF sensor is produced with OEM-quality components and undergoes production testing and on-vehicle verification to support consistent performance.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":52985191366837,"sku":"DKHD-245-1621","price":166.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_2451621_Fro.jpg?v=1787122239","url":"https:\/\/www.partcatalog.com\/products\/walker-245-1621-mass-air-flow-sensor","provider":"PartCatalog","version":"1.0","type":"link"}