Walker 235-1478 Engine Crankshaft Position Sensor

Walker 235-1478 Engine Crankshaft Position Sensor

Walker 235-1478 is an engine crankshaft position sensor for select Mercedes-Benz applications. It uses a black housing with one circular connector, one mounting hole, a male connector, and female terminals for a direct-fit style replacement in supported vehicles.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Black sensor body with circular connector design
• 1 connector, 1 mounting hole, and no mounting bracket included
• Male connector with female terminals
• Built by Walker Products, a manufacturer of fuel system and engine sensor components since 1946
• Walker Products 235-1478 is manufactured to meet or exceed OEM standards and specifications

Product Details

Walker Products 235-1478 is part of the Walker Products engine sensor line, which includes crankshaft sensors, camshaft sensors, throttle position sensors, oxygen sensors, fuel injectors, and related engine management components. As an ISO 9001/IATF16949 certified company, Walker supports production with in-house manufacturing, engineering, product management, and technical documentation to help maintain application accuracy and part quality. This crankshaft position sensor is listed for 1993-1995 Mercedes-Benz 300CE, 300E, E320, S420, S500, and SL500 applications, including the 1993 Mercedes-Benz 300E with 37in wire and the 1994 Mercedes-Benz S500 single distributor application.

This part cross-references Bosch 17020 and Standard Ignition PC344 for the same application.

Vehicle Fitment

• Fits 1994-1995 Mercedes-Benz E320, N/A
• Fits 1994-1995 Mercedes-Benz S420, N/A
• Fits 1995 Mercedes-Benz S500, N/A
• Fits 1994-1995 Mercedes-Benz SL500, N/A
• Fits 1994 Mercedes-Benz S500, N/A; Single Distributor
• Fits 1993 Mercedes-Benz 300CE, N/A
• Fits 1993 Mercedes-Benz 300E, N/A; with 37in Wire
• Fits 1993 Mercedes-Benz 300E, N/A

Common Uses

• Restores crankshaft position signal to the engine control system
• Addresses hard-start or no-start conditions tied to crank signal loss
• Helps correct intermittent stalling or rough running caused by sensor failure
• Supports proper ignition timing and engine synchronization
• Replaces a worn or electrically unstable crankshaft sensor on supported Mercedes-Benz models

Installation Notes

Verify connector style, mounting hole location, and application notes before installation. Confirm the vehicle listing for your exact Mercedes-Benz model year, including the 1993 300E with 37in wire and the 1994 S500 single distributor note. Inspect the harness and connector for corrosion or damage during replacement so the new sensor can operate with a clean signal path.

Quality Assurance

Walker Products has supplied automotive fuel system and engine sensor components since 1946 and backs its parts with manufacturing, engineering, and technical support resources. Walker 235-1478 is produced to meet or exceed OEM standards and specifications.