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Standard Ignition ALS3530 ABS Wheel Speed Sensor - Front Left
| Brand | Standard Ignition ALS3530 |
|---|---|
| Position | Front Left |
| Mounting Hardware Included | No |
| Terminal Quantity | 6 |
| Connector Gender | Male female |
| Terminal Gender | Female |
| Connector Quantity | 2 |
| Connector Shape | Rectangular |
| Dust Shield Included | No |
| Harness Length - inches | 30 |
| Harness Length - mm | 762 |
| Mounting Location | Wheel |
| Mounting Type | Bolt mount |
| Number of Bolt Holes | 3 |
| Terminal Type | Blade |
| Fits | Buick and Chevrolet · 10 vehicles |
Bolt-mount design. Installs securely with a 3-bolt pattern.
Wheel speed sensing. Monitors wheel rotation for ABS system input.
Rectangular connectors. Uses dual connectors with blade terminals for a clean hookup.
Cross-references 533918, 60003678 and 60004835 for the same application. See all 6.
ABS Wheel Speed Sensor for Trailblazer and Encore GX
Standard Ignition ALS3530 is an ABS wheel speed sensor built for front left wheel applications on select Chevrolet Trailblazer and Buick Encore GX models. It uses a 30-inch harness, dual rectangular connectors, and a bolt-mount design to match the original sensor layout for the listed vehicles.
Compatible With 2021-2025 Chevrolet Trailblazer, front left, and 2020-2024 Buick Encore GX, front left. Standard Ignition ALS3530 is a direct-fit replacement for the specified wheel position and connector style.
- ABS wheel speed sensor for the front left wheel location
- 30-inch harness length for routing to the factory connection point
- 2 connectors with male/female connector gender and rectangular shape
- 6 terminals with female blade terminals
- Bolt-mount installation with 3 bolt holes
- Mounts at the wheel for the listed Chevrolet and Buick applications
Detailed Product Overview
Standard Ignition ALS3530 is an ABS wheel speed sensor used to monitor wheel rotation data for the anti-lock brake system. It is specified for the front left position on 2021-2025 Chevrolet Trailblazer and 2020-2024 Buick Encore GX models. The sensor features a 762 mm (30-inch) harness, 2 rectangular connectors, and a 6-terminal blade-style layout to align with the vehicle-side connection points. Standard Ignition ALS3530 also cross-references Monroe Shocks & Struts 172286 and 182286 for the same application.
Common Issues This Part Addresses
- ABS warning light triggered by a failed front left wheel speed sensor
- Erratic or missing wheel speed signal at the brake control system
- Traction control or stability system faults tied to wheel speed input
- Intermittent sensor communication caused by damaged harness or connector wear
- Brake system fault codes related to the front left wheel sensor circuit
Installation Notes and Tips
Verify the front left mounting location, connector style, terminal count, and harness length before installation. Inspect the wheel-end mounting surface, bolt holes, and wiring path for corrosion, damage, or debris before securing the replacement sensor. Confirm the connector locks fully and route the harness away from moving suspension and brake components.
Quality Assurance
Standard Ignition manufactures electrical and sensor components for automotive repair applications, and ALS3530 is built to match the listed fitment and connection requirements for the specified vehicles.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2025 | Chevrolet | Trailblazer | Front Left | — |
| 2024 | Buick | Encore GX | Front Left | — |
| 2024 | Chevrolet | Trailblazer | Front Left | — |
| 2023 | Buick | Encore GX | Front Left | — |
| 2023 | Chevrolet | Trailblazer | Front Left | — |
| 2022 | Buick | Encore GX | Front Left | — |
| 2022 | Chevrolet | Trailblazer | Front Left | — |
| 2021 | Buick | Encore GX | Front Left | — |
| 2021 | Chevrolet | Trailblazer | Front Left | — |
| 2020 | Buick | Encore GX | Front Left | — |
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