Walker 211-91012 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor Overview

Walker Products FSK 211-91012 is an engine coolant temperature sensor for a wide range of GM, Buick, Cadillac, Pontiac, Isuzu, Honda, and Hummer applications. It is built to meet or exceed OEM standards and specifications, with application support backed by Walker Products engineering and technical documentation.

Walker Products FSK is the company’s engine sensor line, focused on accurate vehicle coverage and OE-style replacement parts for cooling and engine management systems. For shoppers searching for a coolant temperature sensor for Chevrolet Silverado 1500, GMC Sierra 1500, or Cadillac DTS applications, this part number provides direct-fit coverage across many model years.

Key Features

• Engine coolant temperature sensor for cooling system and engine management service
• Walker Products FSK line for application-specific coverage
• Manufactured to meet or exceed OEM standards and specifications
• Supported by Walker Products product management, engineering, and technical resources
• Cross-references Beck/Arnley 158-0536 and Delphi TS10075 for the same application

Detailed Description

Part number 211-91012 is an OE-style engine coolant temperature sensor used to report coolant temperature to the vehicle’s control system. Accurate temperature input is important for fuel delivery, idle quality, cooling fan operation, and overall drivability. This sensor covers many GM truck and car platforms, including Chevrolet Express, Silverado, Impala, Malibu, and GMC Sierra, along with select Buick, Cadillac, Pontiac, Isuzu, Honda Passport, and Hummer models.

Compatible With 2013-2014 Chevrolet Express 1500, N/A; 2013-2014 GMC Savana 1500, N/A; 2013 Chevrolet Silverado 1500, N/A; 2013 GMC Sierra 1500, N/A; 2000-2012 Chevrolet Express 1500, N/A; 2000-2012 Chevrolet Silverado 1500, N/A; 2000-2012 GMC Savana 1500, N/A; 2000-2012 GMC Sierra 1500, N/A; 2006-2011 Buick Lucerne, N/A; 2006-2011 Cadillac DTS, N/A; 2005-2010 Cadillac STS, N/A; 2005-2009 Buick LaCrosse, N/A; 2004-2009 Cadillac SRX, N/A; 2004-2009 Cadillac XLR, N/A; 2000-2009 Chevrolet Express 2500, N/A; 2006-2009 Chevrolet Express 3500, N/A; 2001-2009 Chevrolet Silverado 2500 HD, N/A; 2007-2009 Chevrolet Silverado 3500 HD, N/A; 2000-2009 GMC Savana 2500, N/A; 2006-2009 GMC Savana 3500, N/A; 2001-2009 GMC Sierra 2500 HD, N/A; 2007-2009 GMC Sierra 3500 HD, N/A; 2003-2008 Pontiac Grand Prix, N/A; and additional listed applications through 2000 model year coverage.

Common Problems This Sensor May Address

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting, rough idle, or poor cold-engine fuel control
• Cooling fan operation concerns tied to temperature input
• Check engine light conditions related to coolant temperature sensor faults
• Driveability issues on Chevrolet Silverado 1500, GMC Sierra 1500, and similar GM applications

Installation Notes and Tips

Verify the connector style, thread size, and engine application before installation. Compare the old sensor to the replacement part and confirm the vehicle’s exact year, engine, and build date where applicable, especially on Isuzu Rodeo, Axiom, and other date-sensitive listings. Clear diagnostic trouble codes after installation and confirm the coolant level is correct before returning the vehicle to service.

Quality Assurance

Walker Products has supplied fuel system and engine sensor components since 1946 and operates as an ISO 9001/IATF16949 certified manufacturer. The company states that its parts are produced to meet or exceed OEM standards and are supported by in-house manufacturing, engineering, and technical documentation resources.