OE Quality
60-Day Returns

Standard Ignition ALS2129 ABS Wheel Speed Sensor - Front, Front Left or Rear
Overview of Standard Ignition ABS Wheel Speed Sensor ALS2129
The Standard Ignition ABS Wheel Speed Sensor ALS2129 is designed specifically for Porsche 911 models, providing accurate wheel speed data essential for ABS and traction control systems. This sensor ensures reliable performance by matching original equipment specifications.
- Compatible with Porsche 911 models
- OEM replacement part number ALS2129
- Spindle mounting location with bolt mount type
- 6.5-inch (229 mm) harness length for precise fit
- Single oval-shaped male connector with one bolt hole
- Two terminals: female bullet type terminals included
- Mounting hardware not included
Detailed Product Description
The Standard Ignition ALS2129 ABS Wheel Speed Sensor is engineered to meet the exact requirements of Porsche 911 vehicles. It features a spindle mounting location secured by a single bolt hole, ensuring a stable and secure fit. The sensor includes a 6.5-inch (229 mm) harness with an oval-shaped male connector designed to interface with female bullet terminals, providing a reliable electrical connection. This sensor has two terminals, facilitating accurate signal transmission to the vehicle’s ABS control module. While mounting hardware is not included, the bolt mount design allows for straightforward installation using existing hardware.
Common Applications and Issues Addressed
- Restores ABS functionality by providing accurate wheel speed data
- Resolves ABS warning lights caused by faulty sensors
- Improves traction control system performance
- Eliminates erratic speedometer readings related to sensor failure
- Prevents potential braking system malfunctions due to sensor errors
Installation Notes and Tips
- Ensure the mounting location on the spindle is clean and free of debris before installation
- Use the existing bolt for secure mounting; mounting hardware is not included
- Verify connector orientation: the sensor has a male oval connector compatible with female bullet terminals
- Check wiring harness length (6.5 inches) for proper routing without tension
- Test sensor operation after installation to confirm ABS system functionality
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The ALS2129 ABS Wheel Speed Sensor is an OEM replacement part, designed to provide consistent and accurate wheel speed readings. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to support long-term use in Porsche 911 vehicles.
| Brand | Standard Ignition |
| Part Number | ALS2129 |
| Connector Gender | Male |
| Connector Shape | Oval |
| Harness Length - inches | 6.5 |
| Harness Length - mm | 229 |
| Mounting Hardware Included | No |
| Mounting Location | Spindle |
| Mounting Type | Bolt Mount |
| Number of Bolt Holes | 1 |
| O.E.M. Replacement | Yes |
| Terminal Gender | Female |
| Terminal Type | Bullet |
This part fits 17 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 1995 | Porsche | 911 | Front | ||
| 1995 | Porsche | 911 | Rear | ||
| 1994 | Porsche | 911 | Carrera 2 | Front Left | |
| 1994 | Porsche | 911 | Carrera 4 | Front Left | |
| 1994 | Porsche | 911 | RS America | Front Left | |
| 1994 | Porsche | 911 | Speedster | Front Left | |
| 1994 | Porsche | 911 | Turbo 3.6 | Front Left | |
| 1994 | Porsche | 911 | Targa | Front | |
| 1994 | Porsche | 911 | Targa | Rear | |
| 1993 | Porsche | 911 | Carrera 2 | Front Left | |
| 1993 | Porsche | 911 | Carrera 4 | Front Left | |
| 1993 | Porsche | 911 | RS America | Front Left | |
| 1993 | Porsche | 911 | Turbo 3.6 | Front Left | |
| 1992 | Porsche | 911 | Front Left | ||
| 1991 | Porsche | 911 | Front Left | ||
| 1990 | Porsche | 911 | Front Left | ||
| 1989 | Porsche | 911 | Front 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.