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Standard Ignition ALS1581 ABS Wheel Speed Sensor - Front Left
| Brand | Standard Ignition ALS1581 |
|---|---|
| Position | Front Left |
| Connector Gender | Male |
| Connector Shape | Rectangular |
| Harness Length - inches | 34.25" |
| Harness Length - mm | 867 mm |
| Mounting Location | Wheel |
| Number of Bolt Holes | 3 |
| Terminal Gender | Female |
| Terminal Type | Blade |
| Fits | Subaru · 6 vehicles |
Bolt-mount design. Installs securely with a three-hole mounting pattern.
Wheel speed sensor. Monitors wheel rotation for ABS system feedback.
Rectangular connector. Uses a 2-terminal blade connection for a clean fit.
Cross-references Standard Ignition ALS1581, 27540AG11A and 532039 for the same application. See all 5.
ABS Wheel Speed Sensor for Subaru Legacy and Outback
Standard Ignition ALS1581 is an ABS wheel speed sensor for the front left wheel position on select 2007-2009 Subaru Legacy and 2007-2009 Subaru Outback models. It uses a 34.25-inch harness, a rectangular 1-connector layout, and a 2-terminal blade-style connection for a direct replacement at the wheel.
Key Features
- ABS wheel speed sensor for the front left wheel
- Fits 2007-2009 Subaru Legacy, front left
- Fits 2007-2009 Subaru Outback, front left
- Standard Ignition ALS1581 replacement part
- 34.25-inch harness length for wheel-end routing
- Rectangular connector with male connector gender and female terminal gender
- Bolt-mount design with 3 bolt holes
- 2 terminals with blade-type terminals
Detailed Description
Standard Ignition ALS1581 is built for the wheel-mounted ABS sensing location and is specified for front left applications on the Subaru Legacy and Subaru Outback within the listed model years. The sensor uses a bolt-mount design with three bolt holes and a single rectangular connector, helping match the original electrical and mounting layout on the vehicle. If you are replacing a failed Subaru Legacy ABS wheel speed sensor or a Subaru Outback front left wheel speed sensor, ALS1581 provides the correct fitment details for those applications. This part cross-references Subaru 27540AG11A for the same application.
What It Helps Address
- ABS warning light caused by a faulty front left wheel speed sensor
- Erratic or missing wheel speed signal at the wheel
- ABS system fault codes related to the front left sensor circuit
- Loss of accurate wheel speed input for braking control
- Replacement needs after sensor wiring or connector damage
Installation Notes and Tips
Verify the vehicle year, model, and front left position before installation. Inspect the wheel-end connector, harness routing, and mounting points for corrosion, damage, or debris before connecting the new sensor. Confirm the bolt-mount pattern and connector style match the original part on the vehicle.
Quality Assurance
Standard Ignition replacement parts are built to meet application-specific fitment requirements for the listed Subaru Legacy and Subaru Outback models. ALS1581 is identified by part number ALS1581 for accurate ordering and service matching.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Subaru | Legacy | Front Left | — |
| 2009 | Subaru | Outback | Front Left | — |
| 2008 | Subaru | Legacy | Front Left | — |
| 2008 | Subaru | Outback | Front Left | — |
| 2007 | Subaru | Legacy | Front Left | — |
| 2007 | Subaru | Outback | Front Left | — |
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