OE Quality
60-Day Returns

Walker 240-91077 Vehicle Speed Sensor
Reliable Vehicle Speed Sensor for Ford and Mercury Models
The Walker Products FSK Vehicle Speed Sensor 240-91077 is designed to provide accurate speed data for select Ford and Mercury vehicles. This sensor ensures proper communication between your vehicle's speed system and onboard computer for optimal performance.
- Compatible with Ford Contour, Mercury Cougar, and Mercury Mystique
- Part number 240-91077 for precise identification
- Manufactured by Walker under the Walker Products FSK line
- Essential for accurate vehicle speed readings and transmission control
About the Walker Products FSK Line
The Walker Products FSK line focuses on delivering reliable electrical and sensor components tailored for vehicle systems. This product line emphasizes quality and fitment accuracy, ensuring that parts like the 240-91077 Vehicle Speed Sensor meet the specific requirements of Ford and Mercury models such as the Contour, Cougar, and Mystique.
Product Details and Functionality
The Walker 240-91077 Vehicle Speed Sensor is engineered to monitor the rotational speed of the vehicle’s transmission or wheel assembly. It transmits this data to the vehicle’s engine control unit (ECU) or speedometer, enabling accurate speed readings and proper transmission shifting. This sensor is critical for maintaining the performance and safety of your Ford Contour, Mercury Cougar, or Mercury Mystique by providing consistent and reliable speed information.
Common Issues Addressed by This Speed Sensor
- Erratic or non-functional speedometer readings
- Transmission shifting problems or delayed gear changes
- Check engine light triggered by speed sensor faults
- Inaccurate vehicle speed data affecting cruise control operation
- Intermittent stalling or hesitation related to speed sensor failure
Installation Notes and Tips
When installing the Walker 240-91077 Vehicle Speed Sensor, ensure the vehicle is safely lifted and supported. Locate the existing speed sensor on the transmission or wheel hub assembly, disconnect the electrical connector, and remove the old sensor carefully. Install the new sensor in the same orientation and secure it firmly. Reconnect the electrical connector and verify proper operation by checking speedometer function and transmission response.
Quality Assurance and Warranty
Walker Products FSK parts, including the 240-91077 Vehicle Speed Sensor, are manufactured to meet OEM standards for fit and function. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. For warranty information, refer to Walker’s official documentation or contact the manufacturer directly.
This part fits 38 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2002 | Mercury | Cougar | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 2002 | Mercury | Cougar | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK | |
| 2001 | Mercury | Cougar | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 2001 | Mercury | Cougar | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK | |
| 2000 | Ford | Contour | Automatic | 2.5L | V6 | N/A | Transmission Input; Walker Products FSK | |
| 2000 | Ford | Contour | Automatic | 2.0L | L4 | N/A | Input shaft speed sensor for transmission.; Walker Products FSK | |
| 2000 | Mercury | Cougar | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 2000 | Mercury | Cougar | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK | |
| 2000 | Mercury | Mystique | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 2000 | Mercury | Mystique | Automatic | 2.0L | L4 | N/A | Input shaft speed sensor for transmission.; Walker Products FSK | |
| 1999 | Ford | Contour | Automatic | 2.5L | V6 | N/A | Input shaft speed sensor for transmission.; Walker Products FSK | |
| 1999 | Ford | Contour | Automatic | 2.0L | L4 | BI-FUEL | N/A | Transmission Input; Walker Products FSK |
| 1999 | Ford | Contour | Automatic | 2.0L | L4 | N/A | Transmission Input; Walker Products FSK | |
| 1999 | Mercury | Cougar | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 1999 | Mercury | Cougar | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK | |
| 1999 | Mercury | Mystique | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 1999 | Mercury | Mystique | Automatic | 2.0L | L4 | N/A | Input shaft speed sensor for transmission.; Walker Products FSK | |
| 1998 | Ford | Contour | Automatic | 2.5L | V6 | N/A | Transmission Input; Walker Products FSK | |
| 1998 | Ford | Contour | Automatic | 2.0L | L4 | BI-FUEL | N/A | Transmission Input Only; Walker Products FSK |
| 1998 | Ford | Contour | Automatic | 2.0L | L4 | BI-FUEL | N/A | Transmission Input; Walker Products FSK |
| 1998 | Ford | Contour | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK | |
| 1998 | Ford | Contour | Automatic | 2.0L | L4 | N/A | Transmission Input; Walker Products FSK | |
| 1998 | Mercury | Mystique | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 1998 | Mercury | Mystique | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK | |
| 1997 | Ford | Contour | Automatic | 2.5L | V6 | N/A | Transmission Input; Walker Products FSK | |
| 1997 | Ford | Contour | Automatic | 2.0L | L4 | BI-FUEL | N/A | Transmission Input; Walker Products FSK |
| 1997 | Ford | Contour | Automatic | 2.0L | L4 | N/A | Transmission Input; Walker Products FSK | |
| 1997 | Mercury | Mystique | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 1997 | Mercury | Mystique | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK | |
| 1996 | Ford | Contour | Automatic | 2.0L | L4 | N/A | Transmission Input; Walker Products FSK | |
| 1996 | Ford | Contour | Automatic | 2.5L | V6 | N/A | Transmission Input; Walker Products FSK | |
| 1996 | Ford | Contour | Automatic | 2.0L | L4 | BI-FUEL | N/A | Transmission Input; Walker Products FSK |
| 1996 | Mercury | Mystique | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 1996 | Mercury | Mystique | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK | |
| 1995 | Ford | Contour | Automatic | 2.5L | V6 | N/A | Transmission Input; Walker Products FSK | |
| 1995 | Ford | Contour | Automatic | 2.0L | L4 | N/A | Transmission Input; Walker Products FSK | |
| 1995 | Mercury | Mystique | Automatic | 2.5L | V6 | N/A | Transmission Input Only; Walker Products FSK | |
| 1995 | Mercury | Mystique | Automatic | 2.0L | L4 | N/A | Transmission Input Only; Walker Products FSK |
* 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.