HomeTire and Wheel > SensorsStandard Ignition ALS729 Tire Pressure Monitoring System Sensor - Rear Left
Part #: ALS729

Standard Ignition ALS729 Tire Pressure Monitoring System Sensor - Rear Left

Rear Left
6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus, LS430
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TPMS Sensor for Lexus LS430 Rear Left

Standard Ignition ALS729 is a tire pressure monitoring system sensor for the wheel-mounted rear left position on select Lexus LS430 models. It uses a 2-terminal, male connector with a rectangular 1-connector layout and a 34-inch harness for direct sensor replacement service.

Key Features

  • Part number ALS729 for TPMS sensor replacement
  • Wheel-mounted design for rear left installation
  • 2 terminals with male connector and female blade terminals
  • Rectangular connector shape with 1 connector
  • 34-inch harness length for routing at the wheel location
  • No hardware included

Detailed Description

Standard Ignition ALS729 is a tire pressure monitoring system sensor built for the rear left wheel position on 2004-2006 Lexus LS430 applications. It is listed for direct service on the Lexus LS430 and follows the OEM factory relearn procedure, with no programming required. This makes ALS729 a practical replacement when servicing a TPMS fault on the Lexus LS430 rear left wheel position. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

  • TPMS warning light caused by a failed wheel sensor
  • Incorrect or missing tire pressure signal from the rear left wheel
  • Sensor communication issues at the wheel-mounted location
  • Service replacement needs on 2004-2006 Lexus LS430 TPMS systems
  • OEM relearn concerns after sensor replacement

Installation Notes and Tips

Fits 2004-2006 Lexus LS430, rear left. Install the sensor at the wheel location and follow the OEM factory relearn procedure; no programming is required. Verify connector style, terminal layout, and harness routing before installation. Confirm the rear left position matches the vehicle service need before replacing the sensor.

Quality Assurance

Standard Ignition ALS729 is cataloged as a TPMS sensor replacement for the specified Lexus LS430 fitment and is identified with OE-style service requirements, including factory relearn procedure support.

BrandStandard Ignition
Part NumberALS729
Connector GenderMale
Connector ShapeRectangular
Harness Length - inches34
Harness Length - mm867 mm
Mounting LocationWheel
Number of Bolt Holes1
Terminal GenderFemale
Terminal TypeBlade

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2006LexusLS430Rear LeftInstall sensor and follow OEM factory relearn procedure, no programming required.
2006LexusLS430Rear Left
2005LexusLS430Rear LeftInstall sensor and follow OEM factory relearn procedure, no programming required.
2005LexusLS430Rear Left
2004LexusLS430Rear LeftInstall sensor and follow OEM factory relearn procedure, no programming required.
2004LexusLS430Rear Left

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

084-46935313785S109157087472-102558954650050ABS839ABSD30198ARC2394

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.