Walker 1003-1022 Exhaust Gas Temperature (EGT) Sensor - Middle of Particulate Filter

Walker HD Exhaust Gas Temperature Sensor

Walker Products HD 1003-1022 is an exhaust gas temperature (EGT) sensor built for emission control and engine management applications. It uses a black female connector, 2-wire layout, square connector shape, and 14.0 thread diameter to support a direct-style replacement where this configuration is specified.

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering processes focused on meeting or exceeding OEM standards. The Walker Products HD line is positioned for heavy-duty service needs, with technical support and application data maintained to help match the correct sensor to the vehicle.

• Exhaust gas temperature (EGT) sensor for emission control systems
• Walker Products HD line for heavy-duty engine sensor applications
• Black female connector with square housing
• 2-wire, 2-terminal design with bullet terminals
• 14.0 thread diameter for specified exhaust mounting points
• 690.0 wiring harness length
• Cross-reference: Dorman - HD Solutions 904-7782

Detailed Product Overview

Part number 1003-1022 is an EGT sensor used to monitor exhaust temperature as part of the vehicle’s emissions and engine control strategy. Accurate exhaust temperature feedback helps the control system respond to operating conditions in diesel and other monitored exhaust setups. This sensor is a fitment-specific component, so the connector style, terminal layout, thread size, and harness length should be matched to the original unit before ordering. For buyers searching for Walker 1003-1022, Walker Products HD 1003-1022, or an exhaust gas temperature sensor for heavy-duty truck and diesel engine service, this part provides the specified electrical and mounting configuration.

Compatible vehicle searches may include applications such as Ford F-250, Ford F-350, and Chevrolet Silverado HD when the original sensor uses this exact connector and thread specification. Always verify the OE part number and physical connector match before installation.

What It Helps Address

• Fault codes related to exhaust temperature sensor performance
• Incorrect exhaust temperature readings in the engine management system
• Emission control monitoring issues tied to the EGT circuit
• Hard starting, derate, or drivability concerns caused by sensor signal errors
• Replacement needs after heat-related sensor wear or connector damage

Installation Notes and Tips

Confirm the connector shape, terminal type, thread diameter, and harness length against the original sensor before installation. Because EGT sensors operate in high-heat exhaust locations, inspect the mounting point, wiring routing, and connector condition for heat damage or corrosion. Use the vehicle service information for torque, placement, and diagnostic procedures, and clear any stored fault codes after the repair is completed.

Quality Assurance

Walker Products is an ISO 9001 and IATF 16949 certified manufacturer with long-standing experience supplying engine sensors and fuel system components to the automotive aftermarket. The HD product line is backed by in-house manufacturing, product management, engineering, and technical support resources to help maintain application accuracy and part quality.