Autotecnica MA1321901 ABS Wheel Speed Sensor - Front Left

ABS Wheel Speed Sensor for Mazda 3

This Autotecnica ABS wheel speed sensor is built for front left applications on select Mazda 3 and Mazda 3 Sport models. It uses a square/rectangular female connector with a pin terminal layout and includes a wiring harness for a direct replacement-style repair.

Key Features

• Fits 2014-2018 Mazda 3, front left.
• Fits 2014-2018 Mazda 3 Sport, front left.
• Square/rectangular connector with black housing.
• 2-terminal design with female connector and male terminals.
• Includes wiring harness with 381 mm length.
• Autotecnica part number MA1321901.

Detailed Description

MA1321901 is an ABS wheel speed sensor for the front left position on compatible Mazda compact cars. It is specified with a pin terminal type, 2 terminals, and a 381 mm harness length, making it a practical replacement when the original sensor connector or lead is damaged, corroded, or no longer reading wheel speed correctly. This part cross-references Beck/Arnley 084-5032 and Standard Ignition ALS2878 for the same application. MA1321901 is also identified by Autotecnica as a replacement option for Mazda 3 and Mazda 3 Sport fitments from 2014 through 2018.

What It Is Used For

• Restoring ABS wheel speed signal output.
• Replacing a damaged sensor connector or harness lead.
• Addressing ABS warning light concerns tied to wheel speed input.
• Correcting intermittent braking system fault codes related to sensor signal loss.

Installation Notes and Tips

Verify connector shape, terminal type, and harness length before installation. Confirm the mounting location matches the front left position and compare the original sensor to MA1321901 before final fitment. Use the vehicle service procedure for routing and securing the harness.

Quality Assurance

Autotecnica manufactures aftermarket parts under ISO/TS 16949 quality management standards and backs this part with a two-year, unlimited mileage warranty.