Standard Ignition ALS2874 Tire Pressure Monitoring System (TPMS) Sensor - Rear

Brand Standard Ignition ALS2874
Position Rear
Mounting Hardware Included No
Terminal Quantity 2
Connector Gender Male
Terminal Gender Female
Wiring Harness Included Yes
Attachment Method Bolt mount
Color/Finish Black, white, silver
Connector Quantity 1
Connector Shape Rectangular
Dust Shield Included No
Hardware Included Bracket
Harness Length - inches 40.5
Harness Length - mm 1028.7
Mounting Bracket(s) Included Yes
Mounting Hole Quantity 1
Mounting Location Spindle
Mounting Type Bolt mount
Number of Bolt Holes 2
Number of wires 2
Terminal Type Blade
Fits Mazda · 9 vehicles

Bolt-mount design. Includes a wiring harness and bracket for straightforward installation.

Rectangular connector. Two-wire, blade-terminal setup for a clean electrical connection.

Spindle-mounted sensor. Built for tire pressure monitoring system applications.

Cross-references Standard Ignition ALS2874, 2ABS3945 and 5S15662 for the same application. See all 8.

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Standard Ignition ALS2874 TPMS Sensor Overview

Standard Ignition ALS2874 is a tire pressure monitoring system sensor assembly for rear spindle mounting applications. It is listed for 2014-2018 Mazda 3 rear models built in Mexico, with a no-programming-required note on 2014-2017 Mazda 3 rear applications when installed and relearned using the OEM factory procedure.

Key Features

  • Part number ALS2874 TPMS sensor for tire and wheel sensor service
  • Bolt-mount design with a spindle mounting location
  • Includes a wiring harness with a 40.5-inch harness length
  • 2-wire construction with a rectangular 1-connector layout
  • Blade terminal type with male connector and female terminals
  • Bracket and mounting bracket(s) included for installation support
  • Black, white, and silver finish

Detailed Description

ALS2874 is a Standard Ignition tire pressure monitoring system sensor built for rear spindle applications on the Mazda 3. The sensor uses a bolt-mount attachment method, a rectangular connector, and a 2-wire harness layout to support the vehicle’s TPMS-related wheel-end setup. For fitment-specific searches, this part is listed for 2014-2018 Mazda 3 rear models built in Mexico, and 2014-2017 Mazda 3 rear models built in Mexico with OEM factory relearn procedure guidance. This part cross-references 2ABS3945 and ABS2874 for the same application.

What It Is Used For

  • Replacing a failed rear TPMS sensor on a Mazda 3
  • Restoring tire pressure monitoring system communication after sensor fault codes
  • Addressing TPMS warning lights caused by sensor or harness issues
  • Correcting wheel-end sensor problems tied to rear spindle mounting
  • Supporting OEM relearn procedures after sensor installation

Installation Notes and Tips

Verify rear fitment by year, build origin, and application notes before installation. This ALS2874 sensor uses a bolt-mount spindle location and a 2-wire harness, so connector orientation and bracket placement should match the original configuration. For 2014-2017 Mazda 3 rear applications, install the sensor and follow the OEM factory relearn procedure. Confirm all TPMS system checks after installation to ensure the vehicle recognizes the new sensor.

Quality Assurance

Standard Ignition supplies automotive electrical and sensor components for service replacement applications. ALS2874 is cataloged with defined connector, harness, and mounting specifications to support accurate part matching for Mazda 3 rear TPMS service.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2018Mazda3RearBuit in Mexico
2017Mazda3RearBuit in Mexico; No programming required. Install sensor and follow the OEM factory relearn procedure.
2017Mazda3RearBuit in Mexico
2016Mazda3RearBuit in Mexico; No programming required. Install sensor and follow the OEM factory relearn procedure.
2016Mazda3RearBuit in Mexico
2015Mazda3RearBuit in Mexico; No programming required. Install sensor and follow the OEM factory relearn procedure.
2015Mazda3RearBuit in Mexico
2014Mazda3RearBuit in Mexico; No programming required. Install sensor and follow the OEM factory relearn procedure.
2014Mazda3RearBuit in Mexico
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — ALS28742ABS39455S15662533245ABS2874ABSD30874ARC2371BJS74371Y