Walker 211-91082 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender Overview

Walker 211-91082 is an OE replacement engine coolant temperature sender for vehicles that rely on accurate coolant temperature data for engine management and dash gauge operation. It uses a rectangle connector with 2 connectors, spade terminals, and 4 terminal contacts to match the factory electrical interface.

Compatible With 2002-2003 Ford Explorer, 1999-2002 Mercury Cougar, 1998-1999 Ford Contour, and 1998-1999 Mercury Mystique, this sender restores direct temperature reporting to the ECU or instrument cluster. Walker Full Service Kit 211-91082 is built for factory-style fitment in the original coolant sensor port.

Key Features

• OE replacement coolant temperature sender for factory-style temperature monitoring
• Rectangle connector with 2 connectors and 4 terminal contacts
• Spade terminal type for direct electrical connection
• Built to OE resistance values and thermal response curves
• High-temperature, corrosion-resistant construction for coolant system exposure
• Walker Full Service Kit line for service and repair applications

Product Details

Walker 211-91082 measures engine coolant temperature and sends that signal to the ECU or instrument cluster, where it is used for warm-up control, cooling fan operation, fuel delivery timing, and emissions readiness. The sender threads into the original port, typically in the engine block, thermostat housing, or intake manifold, and connects to the factory harness without modification. For Ford Explorer, Mercury Cougar, Ford Contour, and Mercury Mystique applications, this part number supports accurate temperature feedback when the original sender has drifted or failed.

The Walker Full Service Kit product line focuses on direct-fit replacement components for routine engine service. Part number 211-91082 follows OE specifications for mounting thread type and electrical response so the vehicle’s temperature signal remains consistent with factory calibration.

Common Problems This Part Can Address

• Inaccurate dash temperature readings
• False high or low gauge behavior
• Cooling fan cycling at the wrong time
• Poor cold-start or warm-up control caused by incorrect coolant data
• Emissions readiness issues related to faulty temperature input

Installation Notes

• Verify the connector shape, terminal type, and thread style before installation.
• Inspect the coolant port and wiring connector for corrosion or damage before fitting the new sender.
• Install into the original sensor location specified by the vehicle service procedure.
• Confirm proper coolant level and check for leaks after installation.

Quality Assurance

Walker manufactures this coolant temperature sender to OE specifications for resistance, thermal response, and fit. The high-temperature, corrosion-resistant design is built for prolonged exposure to pressurized coolant, vibration, and thermal cycling.