Walker 211-91118 Engine Coolant Temperature Sensor

Walker Products FSK Engine Coolant Temperature Sensor

Walker Products FSK 211-91118 is an engine coolant temperature sensor for a wide range of GM applications. It provides the temperature signal used by the engine management system to monitor coolant conditions and support proper operation.

Key Features

• Engine coolant temperature sensor for vehicle cooling and engine management systems
• Walker Products FSK line for application-specific coverage
• Manufactured to meet or exceed OEM standards and specifications
• Backed by Walker Products engineering, product management, and technical support
• ISO 9001 and IATF 16949 certified manufacturing

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946, with a focus on accurate production data and OE-style fitment support. Part number 211-91118 is part of the Walker Products FSK line and is built for vehicles that rely on a coolant temperature input for engine control, gauge operation, and related diagnostics. This part cross-references Standard Ignition TX89 for the same application.

Compatible With select Buick, Chevrolet, Cadillac, GMC, Pontiac, Saturn, Saab, Hummer, and other GM-platform vehicles, including Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, and Cadillac Escalade applications across the listed model years. Fits 2018-2023 Buick Enclave, N/A; Fits 2013-2020 Chevrolet Tahoe, N/A; Fits 2006-2012 Cadillac Escalade, Walker Products FSK.

Common Issues This Sensor May Address

• Incorrect coolant temperature readings
• Check engine light concerns related to temperature signal faults
• Hard starting or poor warm-up behavior tied to inaccurate sensor input
• Cooling fan control issues caused by faulty temperature data
• Driveability problems when the engine control module receives unreliable coolant information

Installation Notes and Tips

Verify the vehicle application by year, make, and model before installation. Inspect the connector, wiring, and cooling system condition during replacement, and confirm the sensor location matches the original part. For best results, clear any stored diagnostic trouble codes after installation and recheck system operation.

Quality Assurance

Walker Products manufactures engine sensors to meet or exceed OEM standards and specifications. The company supports production with in-house engineering, product management, and technical documentation, and its facilities are certified to ISO 9001 and IATF 16949 standards.