Walker 211-91121 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Chrysler and Jeep

Walker Products FSK 211-91121 is an engine coolant temperature sensor built for direct replacement in select Chrysler, Dodge, Jeep, Mitsubishi, and Plymouth applications. It supports accurate coolant temperature reporting to the engine management system, helping maintain proper fuel control and drivability.

Walker Products FSK focuses on engine management components engineered to meet or exceed OEM standards. Backed by Walker’s manufacturing and technical support resources, this sensor is part of a product line developed for consistent fitment and dependable signal output.

Key Features

• Engine coolant temperature sensor for engine management systems
• Walker Products FSK line for OE-style replacement applications
• Built to meet or exceed OEM standards and specifications
• Supports accurate temperature input for the vehicle computer
• Fits select 1995-1997 Chrysler Concorde, LHS, Town & Country, and Intrepid applications
• Part number 211-91121 for ordering and catalog lookup

Detailed Description

Walker Products 211-91121 is an engine coolant temperature sensor used to report coolant temperature to the powertrain control system. Accurate temperature data is critical for fuel delivery, idle quality, cold-start behavior, and overall engine management. This sensor is listed for a wide range of 1995-1997 Chrysler, Dodge, Jeep, Mitsubishi, and Plymouth vehicles, including Chrysler Concorde, Dodge Caravan, Jeep Grand Cherokee, and Plymouth Voyager. This part cross-references Standard Ignition TX43 for the same application.

What It Helps Address

• Incorrect coolant temperature readings
• Hard starting when the engine is cold
• Rough idle or unstable warm-up behavior
• Fuel mixture issues caused by faulty temperature input
• Check engine light concerns related to coolant temperature sensor performance

Installation Notes and Tips

Verify connector style, thread size, and engine application before installation. Compare the original sensor to Walker Products FSK 211-91121 to confirm fitment on your Chrysler, Dodge, Jeep, Mitsubishi, or Plymouth vehicle. Clear diagnostic trouble codes after installation and confirm the cooling system is full and free of leaks before returning the vehicle to service.

Quality Assurance

Walker Products has supplied automotive fuel system and engine sensor components since 1946 and operates as an ISO 9001/IATF 16949 certified manufacturer. The company states its products are engineered to meet or exceed OEM standards and supported by in-house manufacturing, engineering, and technical resources.