Walker 1003-1006 Exhaust Gas Temperature (EGT) Sensor - Middle of Particulate Filter

Walker HD Exhaust Gas Temperature Sensor

Walker Products HD 1003-1006 is an exhaust gas temperature (EGT) sensor built for emission control and engine management applications. It uses a black round connector, 2-wire layout, 2 male bullet terminals, and a 14.0 mm thread diameter for exhaust mounting.

Walker Products has supplied automotive fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on meeting OEM standards and specifications. The Walker Products HD line is positioned for heavy-duty service needs where accurate sensor output and dependable fit are important.

Key Features

• Exhaust gas temperature (EGT) sensor for emission control systems
• Walker Products HD line, part number 1003-1006
• Exhaust mount location with 14.0 mm thread diameter
• Black round connector with male connector and terminal design
• 2-wire, 2-terminal configuration with bullet terminals
• 1115.0 wiring harness length

Product Details

This Walker EGT sensor is built for vehicles that rely on exhaust temperature feedback to monitor aftertreatment and engine operating conditions. It is a direct-fit style replacement for applications that use the same connector, terminal, and thread specifications. This part cross-references Dorman - HD Solutions 904-7696 for the same application. For buyers searching for Walker Products HD 1003-1006, this sensor supports accurate exhaust system monitoring in heavy-duty vehicle service.

Common Issues It May Address

• Fault codes related to exhaust gas temperature sensor performance
• Incorrect exhaust temperature readings in the engine control system
• Emission control monitoring problems tied to sensor signal loss
• Connector or terminal mismatch during sensor replacement
• Service issues on heavy-duty exhaust temperature sensor applications

Installation Notes

Verify the connector shape, terminal type, thread diameter, and harness length against the original sensor before installation. Because EGT sensors mount in the exhaust stream, allow the exhaust system to cool fully before service and inspect the threaded port for damage or carbon buildup. Confirm vehicle application details by make, model, year, and position before ordering Walker Products HD 1003-1006.

Quality Assurance

Walker Products manufactures engine sensors and fuel system components to meet or exceed OEM standards and specifications. The company is ISO 9001 and IATF 16949 certified, with product management, engineering, and technical support backing its aftermarket parts.