Walker 211-1027 Engine Coolant Temperature Sender

Engine Coolant Temperature Sender Overview

Walker Products 211-1027 is an engine coolant temperature sender for select Nissan and Mercury applications. It provides a direct replacement option for vehicles that need accurate coolant temperature signal input for the engine management system and dash-related temperature monitoring.

Built by Walker Products, a long-established manufacturer of fuel system and engine sensor components, this part reflects OE-style manufacturing standards and application-specific engineering. It is a practical choice for drivers servicing a Nissan Frontier, Nissan Xterra, Nissan Quest, or Mercury Villager.

Key Features

• Engine coolant temperature sender for select vehicle applications
• Walker Products part number 211-1027
• Application coverage for Nissan Frontier, Nissan Xterra, Nissan Quest, and Mercury Villager
• Manufactured to meet or exceed OEM standards and specifications
• Supported by Walker Products engineering, product management, and technical documentation
• ISO 9001/IATF16949 certified manufacturing environment

Application Details

Fits 1999-2004 Nissan Frontier, Sender Only. Fits 2000-2004 Nissan Xterra, Sender Only. Fits 1995-2002 Mercury Villager, Walker Products. Fits 1995-2002 Nissan Quest, Sender Only. If you are searching for an engine coolant temperature sender for a 1999-2004 Nissan Frontier or a 2000-2004 Nissan Xterra, Walker Products 211-1027 is listed for those applications.

This part cross-references TS321 and TU215 for the same application.

What It Helps Address

• Incorrect coolant temperature signal to the engine control system
• Temperature gauge readings that are inconsistent or inaccurate
• Hard starting or drivability concerns tied to coolant temperature input
• Cooling system diagnosis when the sender is no longer reporting correctly
• Replacement needs during engine sensor or cooling system service

Installation Notes

Verify the connector style, thread size, and vehicle application before installation. Use the vehicle service information for the correct sender location and torque specification. After installation, check for leaks and confirm that the temperature reading or signal is operating normally.

Quality Assurance

Walker Products has supplied automotive fuel system and engine sensor components since 1946 and backs its products with in-house manufacturing, engineering, and technical support. The company states that its parts are produced to meet or exceed OEM standards and specifications.