OE Quality
60-Day Returns

Standard Ignition ALS204 ABS Wheel Speed Sensor
Reliable ABS Wheel Speed Sensor for Select GM Vehicles
The Standard Ignition ALS204 ABS Wheel Speed Sensor is engineered to provide accurate wheel speed data for improved braking performance. Designed specifically for Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, this sensor ensures consistent ABS functionality and vehicle safety.
- Connector Gender: Female for secure electrical connection
- Single rectangular connector for precise fitment
- Mounts directly to the spindle with one bolt hole for stable installation
- Two male blade terminals for reliable signal transmission
Detailed Product Features and Specifications
This ABS Wheel Speed Sensor (part number ALS204) features a female connector with a rectangular shape, designed to interface seamlessly with the vehicle's wiring harness. The sensor mounts on the spindle using a single bolt hole, ensuring a firm and accurate placement critical for precise wheel speed readings. Equipped with two male blade terminals, it provides a dependable electrical connection that supports the anti-lock braking system's responsiveness. Compatible with models such as the Buick Achieva, Cadillac DeVille, Chevrolet Cavalier, Oldsmobile Cutlass Calais, Pontiac Grand Am, and others, this sensor meets the specific requirements of these vehicles' braking systems.
Common Applications and Problem Resolution
- Restores ABS warning light functionality by providing accurate wheel speed data
- Eliminates erratic ABS activation or failure during braking
- Prevents inconsistent speedometer readings related to wheel speed sensor faults
- Addresses issues with traction control and stability control systems linked to sensor errors
- Helps maintain overall vehicle safety by ensuring proper ABS operation
Installation Notes and Tips
When installing the Standard Ignition ALS204 sensor, ensure the spindle mounting location is clean and free of debris to allow proper sensor alignment. Use the single bolt hole to secure the sensor firmly without over-tightening, which could damage the sensor or mounting point. Verify the female rectangular connector mates securely with the vehicle harness to avoid electrical faults. Testing the sensor after installation is recommended to confirm correct ABS system operation.
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The ALS204 ABS Wheel Speed Sensor undergoes rigorous quality control to maintain consistent standards. While specific warranty details are not provided here, Standard Ignition typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | Standard Ignition |
| Part Number | ALS204 |
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Rectangular |
| Mounting Location | Spindle |
| Number of Bolt Holes | 1 |
| Terminal Gender | Male |
| Terminal Quantity | 2 |
| Terminal Type | Blade |
This part fits 62 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Chevrolet | Cavalier | Front Right | |||
| 2005 | Pontiac | Sunfire | Front Right | |||
| 2004 | Chevrolet | Cavalier | Front Right | |||
| 2004 | Pontiac | Sunfire | Front Right | |||
| 2003 | Chevrolet | Cavalier | Front Right | |||
| 2003 | Pontiac | Sunfire | Front Right | |||
| 2002 | Chevrolet | Cavalier | Front Right | |||
| 2002 | Pontiac | Sunfire | Front Right | |||
| 2001 | Chevrolet | Cavalier | Front Right | |||
| 2001 | Pontiac | Sunfire | Front Right | |||
| 2000 | Chevrolet | Cavalier | Front Right | |||
| 2000 | Pontiac | Sunfire | Front Right | |||
| 1999 | Cadillac | DeVille | Rear Right | |||
| 1999 | Chevrolet | Cavalier | Front Right | |||
| 1999 | Pontiac | Sunfire | Front Right | |||
| 1998 | Buick | Skylark | Front Left | |||
| 1998 | Cadillac | DeVille | Rear Right | w/ Heavy Duty Brakes | ||
| 1998 | Chevrolet | Cavalier | Front Right | |||
| 1998 | Oldsmobile | Achieva | Front Left | |||
| 1998 | Pontiac | Grand Am | Front Left | |||
| 1998 | Pontiac | Sunfire | Front Right | |||
| 1997 | Buick | Skylark | Front Left | |||
| 1997 | Cadillac | DeVille | Rear Right | w/ Heavy Duty Brakes | ||
| 1997 | Chevrolet | Cavalier | Front Right | |||
| 1997 | Oldsmobile | Achieva | Front Left | |||
| 1997 | Pontiac | Grand Am | Front Left | |||
| 1997 | Pontiac | Sunfire | Front Right | |||
| 1996 | Buick | Skylark | Front Left | |||
| 1996 | Chevrolet | Cavalier | Front Right | |||
| 1996 | Chevrolet | Corsica | Front Left | |||
| 1996 | Oldsmobile | Achieva | Front Left | |||
| 1996 | Pontiac | Grand Am | Front Left | |||
| 1996 | Pontiac | Sunfire | Front Right | |||
| 1995 | Buick | Skylark | Front Left | |||
| 1995 | Chevrolet | Cavalier | Front Right | |||
| 1995 | Chevrolet | Corsica | Front Left | |||
| 1995 | Oldsmobile | Achieva | Front Left | |||
| 1995 | Pontiac | Grand Am | Front Left | |||
| 1995 | Pontiac | Sunfire | Front Right | |||
| 1994 | Buick | Skylark | Front Left | |||
| 1994 | Chevrolet | Cavalier | Front Left | |||
| 1994 | Chevrolet | Corsica | Front Left | |||
| 1994 | Oldsmobile | Achieva | Front Left | |||
| 1994 | Pontiac | Grand Am | Front Left | |||
| 1994 | Pontiac | Sunbird | Front Right | |||
| 1993 | Buick | Skylark | Front Left | |||
| 1993 | Chevrolet | Cavalier | Front Left | |||
| 1993 | Chevrolet | Corsica | Front Left | |||
| 1993 | Oldsmobile | Achieva | Front Left | |||
| 1993 | Pontiac | Grand Am | Front Left | |||
| 1993 | Pontiac | Sunbird | Front Right | |||
| 1992 | Buick | Skylark | Front Left | |||
| 1992 | Chevrolet | Cavalier | Front Left | |||
| 1992 | Chevrolet | Corsica | Front Left | |||
| 1992 | Oldsmobile | Achieva | Front Left | |||
| 1992 | Pontiac | Grand Am | Front Left | |||
| 1992 | Pontiac | Sunbird | Front Right | |||
| 1991 | Buick | Skylark | Front Left | |||
| 1991 | Oldsmobile | Cutlass Calais | 2.3L | L4 | Front | |
| 1991 | Oldsmobile | Cutlass Calais | 2.5L | L4 | Front | |
| 1991 | Oldsmobile | Cutlass Calais | 3.3L | V6 | Front | |
| 1991 | Pontiac | Grand Am | 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.