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Walker 1003-1039 Exhaust Gas Temperature (EGT) Sensor
| Brand | Walker 1003-1039 |
|---|---|
| Wiring Harness Length | 405.0 |
| Connector Color | Brown |
| Mount Location | Exhaust |
| Terminal Type | Blade |
| Wire Quantity | 2 |
| Connector Shape | Rectangle |
| Terminal Quantity | 2 |
| Connector Gender | Female |
| Terminal Gender | Male |
| Thread Diameter | 16.0 |
| Fits | — |
OE-standard build. Made to meet or exceed OEM specifications.
Exhaust sensor. Measures exhaust gas temperature for engine management.
2-wire design. Features a rectangular female connector with blade terminals.
Cross-references A6805402217 for the same application. See all 1.
Walker HD Exhaust Gas Temperature Sensor
Walker Products HD Exhaust Gas Temperature (EGT) Sensor, part number 1003-1039, is built for exhaust-side temperature monitoring in diesel emission control systems. With a 405.0 wiring harness length, brown rectangular female connector, and 16.0 thread diameter, it is specified for direct-fit service where the original sensor matches these connector and mounting details.
Key Features
- Exhaust gas temperature sensor for emission control and engine management systems
- Walker Products HD line for heavy-duty automotive and diesel applications
- Part number 1003-1039 for accurate catalog and service matching
- 405.0 wiring harness length for routing to the factory connection point
- Brown rectangular connector with female housing and blade terminals
- 2-wire, 2-terminal design with male terminals on the sensor side
- 16.0 thread diameter for exhaust mounting applications
Product Details
Walker Products has supplied fuel system and engine sensor components since 1946, and the Walker Products HD line extends that experience into demanding service environments. This EGT sensor is manufactured to meet or exceed OEM standards and specifications, with engineering and product support focused on accurate vehicle application matching. Use part number 1003-1039 when cross-checking service information for diesel exhaust temperature sensor replacement on supported vehicles, including Mercedes-Benz applications that use the same connector and thread configuration.
This part cross-references Mercedes-Benz A6805402217 for the same application.
What This Sensor Helps Address
- Fault codes related to exhaust gas temperature sensor performance
- Incorrect exhaust temperature readings in emission control monitoring
- Diesel aftertreatment system warning lights tied to sensor signal issues
- Connector or harness mismatch during EGT sensor replacement
- Service replacement for worn or heat-damaged exhaust-mounted sensors
Installation Notes and Tips
Confirm the connector shape, terminal style, thread diameter, and harness length against the original sensor before installation. Because this sensor mounts in the exhaust, inspect the surrounding wiring and threaded port for heat damage, corrosion, or carbon buildup before transferring the replacement part. Verify vehicle application by VIN and service data, especially on Mercedes-Benz models using part number 1003-1039.
Quality Assurance
Walker Products is an ISO 9001/IATF16949 certified manufacturer and states that its engine sensors are produced to meet or exceed OEM standards and specifications. The company backs its parts with in-house manufacturing, engineering, product management, and technical support resources.
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