Walker 1003-1026 Exhaust Gas Temperature (EGT) Sensor

Walker 1003-1026 Exhaust Gas Temperature Sensor

Walker Products HD 1003-1026 is an exhaust gas temperature (EGT) sensor built for emission control and engine management applications. It uses a 2-wire design with a green oval female connector, blade terminals, and a 14.0 mm thread diameter for a direct-fit style replacement where this configuration is specified.

Walker Products HD focuses on OE-style engine sensors and fuel system components, backed by in-house manufacturing, engineering, and product support. For buyers searching for a Walker EGT sensor, Walker Products HD 1003-1026 offers the specification details needed to match the original sensor layout on supported vehicles.

Key Features

• Exhaust Gas Temperature (EGT) sensor for emission control systems
• Walker Products HD line for engine sensor applications
• 2-wire construction with blade terminals
• Green oval female connector for application-specific fitment
• 14.0 mm thread diameter for threaded exhaust mounting
• 365.0 wiring harness length for routing to the factory connection point
• Mount location: exhaust

Product Details

Part number 1003-1026 is intended for vehicles that require an exhaust-mounted temperature sensor with the listed connector shape, terminal style, and thread size. The sensor supports exhaust temperature monitoring used by the engine control system to manage emissions-related operation. If you are replacing a worn or failed EGT sensor on a compatible vehicle, this Walker sensor provides the key physical and electrical characteristics to match the original setup. This part cross-references Mercedes-Benz OE numbers 6805402017 and A6805402017 for the same application.

Common Symptoms It May Address

• Check engine light related to exhaust temperature sensor faults
• Incorrect exhaust temperature readings reported to the ECU
• Emission control system fault codes tied to sensor performance
• Rough engine management behavior caused by inaccurate exhaust data
• Failed sensor connector or damaged harness at the exhaust location

Installation Notes

Confirm connector shape, terminal type, thread diameter, and harness length before installation. Because this sensor mounts in the exhaust, allow the system to cool fully before removal and inspect the threaded port for carbon buildup or damage. Verify the replacement matches the original vehicle application and wiring layout before clearing diagnostic codes.

Quality Assurance

Walker Products has supplied automotive fuel system and engine sensor components since 1946 and manufactures to meet or exceed OEM standards and specifications. The company is ISO 9001 and IATF 16949 certified, with engineering and technical support used to maintain product accuracy and application data.