Walker 240-91027 Vehicle Speed Sensor

Walker Products FSK Vehicle Speed Sensor

Walker Products FSK 240-91027 is a vehicle speed sensor built for automatic transmission speed and revolution signal applications on select Chevrolet and GMC trucks and SUVs. It is a direct-fit replacement for common GM platforms, including Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, Express, and Savana models.

Walker Products has supplied automotive fuel system and engine management components since 1946, with manufacturing and engineering support focused on OEM-level fit and specification control. The Walker Products FSK line brings that same approach to sensor applications, including this vehicle speed sensor for GM drivability and transmission feedback needs.

Key Features

• Part number: 240-91027
• Vehicle speed sensor for automatic transmission speed and revolution output applications
• Black/smooth connector color with female connector gender
• 2-pin terminal design
• Bolt-on mount type with 2 bolt holes
• Wiring harness included
• Length: 2.25
• Cross-reference: Dorman - HELP 31052

Detailed Description

Walker Products FSK 240-91027 is engineered for direct replacement on a wide range of GM vehicles that use transmission input/output shaft speed sensing or automatic transmission revolution sensing. Common search terms for this part include Chevrolet Silverado vehicle speed sensor replacement, GMC Sierra transmission speed sensor, and GM automatic transmission revolution sensor. The sensor is listed across 1998-2009 applications and is used on multiple Silverado, Sierra, Express, Savana, Tahoe, Yukon, Suburban, Avalanche, and Escalade configurations. If you are sourcing a Walker Products 240-91027 replacement for a Chevrolet Silverado 1500, GMC Sierra 2500 HD, or GMC Savana 3500, this part number is the relevant reference to verify against your original sensor.

Vehicle Fitment

• Fits 1998-2009 Chevrolet Express 2500, N/A
• Fits 1998-2009 Chevrolet Express 3500, N/A
• Fits 1999-2008 GMC Savana 2500, N/A
• Fits 1999-2008 GMC Savana 3500, N/A
• Fits 2000-2007 Chevrolet Suburban 2500, N/A
• Fits 2000-2007 GMC Yukon XL 2500, N/A
• Fits 2003-2006 Chevrolet Avalanche 2500, N/A
• Fits 2003-2006 Chevrolet Silverado 1500, N/A
• Fits 2005-2006 Chevrolet Silverado 1500 HD, N/A
• Fits 2005-2006 GMC Sierra 1500 HD, N/A
• Fits 2005-2006 Chevrolet Silverado 2500 HD, N/A
• Fits 2004-2005 Chevrolet Silverado 3500, N/A
• Fits 2006 GMC Sierra 1500, N/A
• Fits 2005 GMC Sierra 1500, N/A
• Fits 2005 GMC Sierra 2500 HD, N/A
• Fits 2005 GMC Sierra 3500, N/A
• Fits 2002-2004 GMC Sierra 1500, N/A
• Fits 2002-2004 GMC Sierra 2500, N/A
• Fits 2002-2003 Chevrolet Silverado 1500 HD, N/A
• Fits 2002-2003 Chevrolet Silverado 2500 HD, N/A
• Fits 2001-2004 GMC Sierra 1500, N/A
• Fits 2001-2003 GMC Sierra 1500 HD, N/A
• Fits 2001-2002 Chevrolet Silverado 3500, N/A
• Fits 2001 Chevrolet Silverado 1500 HD, N/A
• Fits 2001 GMC Yukon, N/A
• Fits 2001 GMC Yukon XL 1500, N/A
• Fits 2000-2004 Chevrolet Silverado 2500, N/A
• Fits 2000-2000 Chevrolet Tahoe, N/A
• Fits 2000-2000 GMC Yukon, N/A
• Fits 1999-2000 Chevrolet C2500, N/A
• Fits 1999-2000 Chevrolet C3500, N/A
• Fits 1999-2000 Chevrolet K2500, N/A
• Fits 1999-2000 Chevrolet K3500, N/A
• Fits 1999-2000 GMC C2500, N/A
• Fits 1999-2000 GMC C3500, N/A
• Fits 1999-2000 GMC K2500, N/A
• Fits 1999-2000 GMC K3500, N/A
• Fits 1999-2000 GMC Yukon, N/A
• Fits 1998-1999 Chevrolet C1500 Suburban, N/A
• Fits 1998-1999 Chevrolet C2500 Suburban, N/A
• Fits 1998-1999 Chevrolet K1500 Suburban, N/A
• Fits 1998-1999 Chevrolet K2500 Suburban, N/A
• Fits 1998-1999 GMC C1500 Suburban, N/A
• Fits 1998-1999 GMC C2500 Suburban, N/A
• Fits 1998-1999 GMC K1500 Suburban, N/A
• Fits 1998-1999 GMC K2500 Suburban, N/A
• Fits 1998 Chevrolet K1500, N/A
• Fits 1999 Chevrolet P30, N/A
• Fits 1999 GMC P3500, N/A
• Fits 2000 Cadillac Escalade, N/A
• Fits 2002 Cadillac Escalade, N/A
• Fits 2002 Chevrolet Avalanche 2500, N/A
• Fits 2002 Chevrolet Silverado 1500 HD, N/A
• Fits 2002 GMC Sierra 2500, N/A
• Fits 2002 GMC Sierra 3500, N/A
• Fits 2002 Chevrolet Silverado 2500 HD, N/A
• Fits 2002 Chevrolet Silverado 3500, N/A
• Fits 2002 GMC Sierra 1500 HD, N/A
• Fits 2002 GMC Sierra 2500 HD, N/A
• Fits 2002 GMC Sierra 3500, N/A
• Fits 2003-2006 Chevrolet Avalanche 2500, N/A
• Fits 2007 Chevrolet Silverado 1500 HD Classic, N/A
• Fits 2007 Chevrolet Silverado 2500 HD Classic, N/A
• Fits 2007 Chevrolet Silverado 3500 Classic, N/A
• Fits 2007 GMC Sierra 1500 HD Classic, N/A
• Fits 2007 GMC Sierra 2500 HD Classic, N/A
• Fits 2007 GMC Sierra 3500 Classic, N/A
• Fits 2009 GMC Savana 2500, N/A
• Fits 2009 GMC Savana 3500, N/A

Common Issues This Sensor Can Address

• Erratic or inaccurate vehicle speed readings
• Transmission shift concerns tied to speed signal loss
• Speedometer operation problems on GM trucks and vans
• Input or output shaft speed sensor fault codes
• Revolution sensor signal interruptions in automatic transmission systems

Installation Notes and Tips

Verify the original connector style, bolt-hole layout, and sensor length before installation. This part uses a 2-pin female connector, bolt mount, and included wiring harness, so matching the OE-style configuration is important for proper fitment on Chevrolet Silverado, GMC Sierra, and related GM applications. Confirm the vehicle’s transmission sensor location and compare the original part number or connector shape before replacement.

Quality Assurance

Walker Products manufactures engine management and fuel system components to meet or exceed OEM standards and specifications. The company supports production with in-house manufacturing, product management, engineering, and technical documentation, and operates as an ISO 9001/IATF16949 certified manufacturer.