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Walker 1003-1021 Exhaust Gas Temperature (EGT) Sensor
| Brand | Walker 1003-1021 |
|---|---|
| Wiring Harness Length | 340.0 |
| Connector Color | Black |
| Mount Location | Exhaust |
| Terminal Type | Bullet |
| Wire Quantity | 2 |
| Connector Shape | Square |
| Terminal Quantity | 2 |
| Connector Gender | Female |
| Terminal Gender | Male |
| Thread Diameter | 14.0 |
| Fits | — |
OE-standard quality. Built to meet or exceed OEM specifications.
Exhaust sensor. Measures exhaust gas temperature for engine management.
Square connector. Features a black female connector with bullet terminals.
Cross-references Dorman - HD Solutions 904-7449, 3HTS0241 and 21164790 for the same application. See all 6.
Walker HD EGT Sensor for Exhaust Monitoring
Walker Products HD Exhaust Gas Temperature (EGT) Sensor 1003-1021 is built for exhaust-mounted temperature monitoring in diesel emission control systems. With a 14.0 mm thread diameter, 340.0 wiring harness length, black square connector, and 2-wire bullet terminal design, it is a direct-fit style replacement for service work that demands accurate signal transfer and secure connection.
Walker Products HD focuses on heavy-duty engine management components engineered to meet or exceed OEM standards. For technicians servicing diesel applications, this EGT sensor supports reliable exhaust temperature feedback for systems that depend on precise thermal data.
Key Features
- Part number: 1003-1021
- Exhaust Gas Temperature (EGT) sensor for emission control service
- Mount location: exhaust
- 14.0 mm thread diameter
- 340.0 wiring harness length
- Black square connector with female connector gender
- 2-wire design with 2 terminals
- Bullet terminal type with male terminal gender
Product Details
This Walker HD sensor is designed for exhaust temperature measurement in diesel emission control systems where stable electrical connection and correct thread fit are critical. The square black connector, bullet terminals, and 2-wire layout support straightforward replacement of worn or failed EGT sensors. Part number 1003-1021 is also referenced in heavy-duty service catalogs for applications that require an exhaust-mounted temperature sensor with the listed connector and thread specifications.
This part cross-references Dorman - HD Solutions 904-7449 for the same application.
Common Issues It May Resolve
- Fault codes related to exhaust gas temperature sensor performance
- Inaccurate exhaust temperature readings
- Intermittent sensor signal from damaged wiring or terminals
- Connector fitment problems at the exhaust sensor location
- Failed emissions monitoring input on diesel engine systems
Installation Notes and Tips
Verify thread diameter, connector shape, terminal style, and harness length before installation. Because fitment data is not provided for this part, confirm the original sensor configuration against the vehicle service information before ordering. Inspect the exhaust bung, wiring routing, and connector condition during replacement to help ensure a secure installation.
Quality Assurance
Walker Products has supplied automotive fuel system and engine sensor components since 1946 and manufactures products to meet or exceed OEM standards and specifications. The company supports production with in-house manufacturing, product management, engineering, and technical support, and operates as an ISO 9001/IATF16949 certified manufacturer. Part number 1003-1021 reflects that heavy-duty product line focus.
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| No rows match your filter. | ||||