{"product_id":"standard-ignition-als3478-abs-wheel-speed-sensor-rear-left","title":"Standard Ignition ALS3478 ABS Wheel Speed Sensor - Rear Left","description":"\u003ch2\u003eABS Wheel Speed Sensor for Mazda MX-5 Miata\u003c\/h2\u003e\u003cp\u003eRestore accurate wheel speed signal input with this Standard Ignition ABS wheel speed sensor, part number ALS3478. It is built for the rear left position on 2016-2023 Mazda MX-5 Miata models and uses a wheel-mounted, bolt-mount design for a direct replacement application.\u003c\/p\u003e\u003cp\u003eWith a 39.75-inch harness, rectangular 1-connector layout, and 2-terminal blade connection, ALS3478 is configured to match the vehicle’s original sensor interface. This ABS wheel speed sensor supports consistent anti-lock brake system feedback on Mazda MX-5 Miata rear left applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStandard Ignition ALS3478 ABS wheel speed sensor\u003c\/li\u003e\n\u003cli\u003eFits 2016-2023 Mazda MX-5 Miata, rear left\u003c\/li\u003e\n\u003cli\u003eWheel-mounted sensor with bolt-mount installation\u003c\/li\u003e\n\u003cli\u003eRectangular connector with male connector gender and female terminal gender\u003c\/li\u003e\n\u003cli\u003e2-terminal blade design with 1 connector\u003c\/li\u003e\n\u003cli\u003e39.75-inch harness length for routing to the factory connection point\u003c\/li\u003e\n\u003cli\u003eNo mounting hardware included\u003c\/li\u003e\n\u003cli\u003eNo dust shield included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe ALS3478 is an ABS wheel speed sensor for the rear left wheel position on Mazda MX-5 Miata models from 2016 through 2023. It is designed with a rectangular connector, two blade terminals, and a 39.75-inch harness to support a clean OE-style electrical connection at the wheel. If you are replacing a failed Mazda MX-5 Miata rear left ABS sensor, ALS3478 provides the correct fitment and connector style for the listed application.\u003c\/p\u003e\u003cp\u003eThis part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eABS warning light caused by a faulty rear left wheel speed sensor\u003c\/li\u003e\n\u003cli\u003eIntermittent or missing wheel speed signal at the rear left wheel\u003c\/li\u003e\n\u003cli\u003eBrake system fault codes related to wheel speed input\u003c\/li\u003e\n\u003cli\u003eErratic anti-lock brake operation from a damaged sensor or harness\u003c\/li\u003e\n\u003cli\u003eConnector or wiring issues at the wheel-mounted sensor location\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm rear left placement before installation and compare the connector, terminal count, and harness routing to the original part. Inspect the wheel-side mounting points and the vehicle harness connector for corrosion, bent terminals, or damage before connecting ALS3478. Because mounting hardware is not included, reuse or source the correct fasteners as needed for the application.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eStandard Ignition supplies replacement electrical and sensor components for automotive repair applications. ALS3478 is built to match the listed fitment for 2016-2023 Mazda MX-5 Miata rear left ABS wheel speed sensor service.\u003c\/p\u003e","brand":"Standard Ignition","offers":[{"title":"Default Title","offer_id":52816431382709,"sku":"FBHK-ALS3478","price":188.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SI_ALS3478_Fro.jpg?v=1784356552","url":"https:\/\/www.partcatalog.com\/products\/standard-ignition-als3478-abs-wheel-speed-sensor-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}