Walker 1003-1027 Exhaust Gas Temperature (EGT) Sensor

Walker HD Exhaust Gas Temperature Sensor

Walker Products HD 1003-1027 is an exhaust gas temperature (EGT) sensor built for emission control and engine management applications. It uses a 14.0 mm thread diameter, 2-wire layout, oval female connector, and green connector body for a direct-fit style service part.

Walker Products HD focuses on OE-style sensor and fuel system components backed by engineering and product support. The 1003-1027 part number is part of that line, which is aimed at accurate replacement parts for modern engine management systems.

Key Features

• Exhaust gas temperature (EGT) sensor for emission control systems
• Walker Products HD 1003-1027 replacement part
• 14.0 mm thread diameter for exhaust mounting
• 2-wire design with blade terminals
• Oval female connector with green housing
• 485.0 wiring harness length
• Male terminal ends for secure electrical connection

Detailed Description

The Walker 1003-1027 EGT sensor monitors exhaust temperature data used by the vehicle’s engine control system. This type of sensor is commonly used to support emissions management, protect exhaust aftertreatment components, and maintain proper engine operation when the original sensor has failed or drifted out of specification. If you are searching for a Walker Products HD 1003-1027 exhaust gas temperature sensor for a repair, this part is built around the listed connector, thread, and wiring details for service replacement.

Walker Products has supplied automotive fuel system and engine sensor components since 1946 and manufactures to meet or exceed OEM standards and specifications. The brand’s HD line is positioned for accurate replacement in demanding automotive applications, including vehicles that rely on precise exhaust temperature feedback. This makes the 1003-1027 a practical choice for technicians and owners looking for an OE-style EGT sensor replacement.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Fault codes related to exhaust gas temperature sensor performance
• Incorrect exhaust temperature readings in the engine control system
• Emission control warning lights tied to sensor failure
• Aftertreatment protection issues caused by inaccurate temperature data
• Driveability concerns linked to a damaged exhaust sensor circuit

Installation Notes and Tips

Verify connector shape, terminal style, thread diameter, and harness length before installation. Because this sensor mounts in the exhaust, inspect the threaded port and surrounding components for heat damage, corrosion, or carbon buildup before fitting the replacement. Confirm vehicle-specific application details for your make and model before ordering, especially when searching for Walker 1003-1027 for Mercedes-Benz or other European diesel applications.

Quality Assurance

Walker Products is an ISO 9001 and IATF 16949 certified manufacturer with engineering and technical support resources in place to help maintain product accuracy and production consistency. The 1003-1027 is produced under the Walker Products HD line for OE-style replacement quality.