Walker 1003-1051 Exhaust Gas Temperature (EGT) Sensor

Walker HD EGT Sensor 1003-1051

Walker Products HD 1003-1051 is an exhaust gas temperature (EGT) sensor built for exhaust-mounted temperature monitoring in diesel emission control systems. With a 14.0 mm thread diameter, 750.0 wiring harness length, black round connector, and 2-wire male bullet terminals, it is specified for direct replacement use where the original sensor matches these connector and mounting details.

Key Features

• Exhaust gas temperature (EGT) sensor for emission control applications
• Exhaust mount location with 14.0 mm thread diameter
• 750.0 wiring harness length for routing flexibility
• Black round connector with male connector gender
• 2-wire design with male bullet terminals and 2 terminal positions
• Walker Products HD line for heavy-duty engine management service

Product Details

Walker Products has supplied fuel system and engine sensor components since 1946, and the Walker Products HD line focuses on heavy-duty applications that require accurate replacement parts. Part number 1003-1051 is an EGT sensor used to monitor exhaust temperature so the engine control system can manage emissions-related operation. This part cross-references Dorman - HD Solutions 904-7697 for the same application. For buyers searching for a Walker EGT sensor, Walker Products HD 1003-1051, or a heavy-duty exhaust gas temperature sensor replacement, this part provides the connector and mounting specifications needed for a proper match.

What It Helps Address

• Fault codes related to exhaust gas temperature sensor performance
• Incorrect exhaust temperature readings in the emission control system
• Sensor signal loss caused by damaged wiring or terminals
• Replacement needs after heat-related sensor wear in the exhaust stream
• Service issues on diesel emission control monitoring circuits

Installation Notes

Verify the thread diameter, connector shape, terminal type, wire count, and harness length against the original sensor before installation. Because this sensor mounts in the exhaust, inspect the surrounding harness and connector for heat damage, corrosion, or broken terminals before connecting the replacement. Confirm vehicle application details for the exact make and model match; fitment data is not listed here, so use the original part number and connector specifications to verify compatibility.

Quality Assurance

Walker Products manufactures engine sensors to meet or exceed OEM standards and specifications, supported by in-house manufacturing, product management, engineering, and technical support. The company is ISO 9001 and IATF 16949 certified, reflecting controlled production and quality processes for aftermarket sensor replacement parts.