Walker 240-91058 Vehicle Speed Sensor

Walker Vehicle Speed Sensor for Ford and Mercury

Walker Products FSK 240-91058 is a vehicle speed sensor built for transmission output shaft applications on select Ford, Lincoln, and Mercury vehicles. It supports accurate speed signal delivery for drivability and transmission-related systems, with fitment covering popular platforms such as Ford Explorer, Ford F-150, and Mercury Mountaineer.

Key Features

• Vehicle speed sensor for transmission output shaft applications
• Walker Products FSK line engineered to meet or exceed OEM standards and specifications
• Backed by Walker Products manufacturing, engineering, and technical support resources
• ISO 9001/IATF16949 certified manufacturing environment
• Cross-reference part numbers include NTK AU0001 and Standard Ignition SC210

Product Line Details

Walker Products FSK is part of Walker’s engine sensor and fuel system product line. The brand has supplied automotive aftermarket components since 1946 and focuses on accurate application coverage, technical documentation, and quality control for sensor replacement parts. Part number 240-91058 is positioned for direct replacement use in speed-signal applications across multiple Ford and Mercury platforms.

Detailed Description

Walker Products 240-91058 is a replacement vehicle speed sensor for applications that use a transmission output shaft signal. It is listed for a wide range of Ford and Mercury vehicles, including 1996-2001 Ford Explorer, 1995-2000 Ford Crown Victoria, 1995-2000 Ford E-150 Econoline, 1997-2000 Ford Expedition, 1996-2000 Ford F-150, 1995-2000 Mercury Grand Marquis, and 1999-2001 Mercury Mountaineer. This part number also appears in fitment for Ford Mustang, Lincoln Town Car, Lincoln Mark VIII, Ford Thunderbird, Mercury Cougar, Ford Bronco, and Ford F-250 applications.

What It Helps Solve

• Inaccurate vehicle speed readings
• Transmission output shaft speed signal faults
• Speedometer operation issues
• Transmission control or ECM input problems tied to vehicle speed data
• Diagnostic trouble codes related to speed sensor performance

Installation Notes and Tips

Confirm the exact year, make, model, and application notes before ordering. Fitment varies by platform and configuration, including notes such as transmission output shaft, to ECM, 14-bolt transmission pan, and Auto-Trac transfer case on specific listings. For best results, compare the original sensor connector, mounting style, and application notes against the vehicle service information before installation.

Quality Assurance

Walker Products states that its components are manufactured to meet or exceed OEM standards and specifications. The company supports production with in-house product management, engineering, application data, and technical support, and operates under ISO 9001/IATF16949 certification.