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Delphi SS21812 ABS Wheel Speed Sensor - Rear Left
| Brand | Delphi SS21812 |
|---|---|
| Position | Rear Left |
| Length | 26.13 |
| Length | 670 |
| Wiring Harness Length | 26.13 |
| Wiring Harness Length | 670 |
| Connector Color | Gray |
| Terminal Type | Pin |
| Mounting Hardware Included | No |
| Connector Quantity | 1 |
| Connector Shape | Square |
| Terminal Quantity | 2 |
| Connector Gender | Male |
| Terminal Gender | Male |
| Wiring Harness Included | Yes |
| Package Contents | Abs wheel speed sensor, instruction sheet |
| Fits | Subaru · 7 vehicles |
OE-standard calibration. Tested to deliver accurate wheel speed readings and consistent ABS input.
Application-specific harness. Includes a 26.13 in. wiring harness for the correct routing and connection.
Direct sensor replacement. Square connector, gray housing, and pin terminals match the original layout.
Cross-references Standard Ignition ALS3170, 5S15386 and 27540FL111 for the same application. See all 5.
ABS Wheel Speed Sensor Overview
Restore accurate wheel speed signal input with this Delphi ABS wheel speed sensor, part number SS21812. It is built for rear left applications and matches the connector and harness details needed for a direct replacement on select Subaru models.
Key Features
- ABS wheel speed sensor for rear left fitment.
- 26.13 in. wiring harness length for application-specific routing.
- Square, 1-connector design with gray housing and pin terminals.
- Wiring harness included; instruction sheet included in the package contents.
- Delphi sensor testing and calibration follow OE standards.
Detailed Fitment and Design
Compatible With 2018-2021 Subaru Crosstrek, rear left, and 2019-2021 Subaru Forester, rear left. The SS21812 uses a male connector layout with two male terminals and a square connector shape, helping it match the original sensor interface on the vehicle. Delphi validates and calibrates its sensors to OE standards to support accurate wheel speed readings and consistent ABS system input. If you are replacing a failed Subaru Crosstrek or Subaru Forester rear left sensor, SS21812 provides the fitment and electrical configuration needed for the job.
Common Problems This Part Can Address
- ABS warning light caused by an erratic wheel speed signal.
- Loss of wheel speed data at the rear left corner.
- Fault codes related to sensor signal interruption.
- Intermittent ABS or traction control operation from a failing sensor.
Installation Notes and Tips
Verify connector shape, terminal count, and harness length before installation. This sensor includes a wiring harness and does not include mounting hardware. Confirm the rear left position and compare the original connector style to the SS21812 before final assembly.
Quality Assurance
Delphi tests and calibrates these sensors to OE standards and uses OE development and validation methods. This part cross-references Standard Ignition ALS3170 and other listed interchange numbers for the same application.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | Subaru | Crosstrek | 2.5L | H4 | Rear Left | — |
| 2021 | Subaru | Forester | 2.5L | H4 | Rear Left | — |
| 2020 | Subaru | Crosstrek | 2.0L | H4 | Rear Left | — |
| 2020 | Subaru | Forester | 2.5L | H4 | Rear Left | — |
| 2019 | Subaru | Crosstrek | 2.0L | H4 | Rear Left | — |
| 2019 | Subaru | Forester | 2.5L | H4 | Rear Left | — |
| 2018 | Subaru | Crosstrek | 2.0L | H4 | Rear Left | — |
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