Walker 211-91005 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Nissan

Walker Products FSK 211-91005 is an engine coolant temperature sensor for select Nissan applications. It is built for accurate coolant temperature reporting to the engine management system, helping maintain proper fuel control and temperature-based engine operation.

Key Features

• Engine coolant temperature sensor for select Nissan vehicles
• Walker Products FSK line component for engine management service
• Manufactured to meet or exceed OEM standards and specifications
• Backed by Walker Products engineering, product management, and technical support
• ISO 9001/IATF16949 certified manufacturing environment
• Part number 211-91005 for catalog and cross-reference use

Product Details

Walker Products has supplied fuel system and engine sensor components to the automotive aftermarket since 1946. The FSK line focuses on engine management service parts, and this coolant temperature sensor is intended for accurate temperature signal delivery in vehicles that rely on coolant data for drivability and engine control. Compatible With 1980-1981 Nissan 810, 1981-1983 Nissan 280ZX, 1982-1983 Nissan 200SX, and 1982-1984 Nissan Maxima. The part number 211-91005 is also useful when matching service records or replacing an existing sensor by reference.

This part cross-references Standard Ignition TX25 for the same application.

Common Issues This Sensor May Address

• Incorrect coolant temperature readings at the engine control system
• Hard starting when the engine is cold
• Rich or lean fuel mixture caused by inaccurate temperature input
• Temperature gauge or sensor signal irregularities
• Driveability concerns related to coolant temperature feedback

Installation Notes and Tips

Verify the connector style, thread size, and vehicle application before installation. Inspect the cooling system and wiring connector for corrosion, damaged terminals, or coolant contamination before replacing the sensor. After installation, confirm the cooling system is properly filled and check for leaks and fault codes. Use the vehicle service information for torque and diagnostic procedures.

Quality Assurance

Walker Products manufactures this sensor to meet or exceed OEM standards and specifications. The company supports production with in-house engineering, product management, and technical documentation, and operates under ISO 9001/IATF16949 certification.