OE Quality
60-Day Returns

Walker 235-2109 Engine Crankshaft Position Sensor
Reliable Engine Crankshaft Position Sensor for Smart Fortwo
The Walker Products 235-2109 engine crankshaft position sensor is designed specifically for Smart Fortwo vehicles. This sensor plays a critical role in engine management by accurately monitoring the crankshaft's position and speed, ensuring optimal engine performance and efficiency.
- Compatible with Smart Fortwo models
- Part number 235-2109 for precise identification
- Engine crankshaft position sensor category for ignition systems
- Manufactured by Walker, a trusted brand in automotive sensors
- Ensures accurate engine timing and smooth operation
About Walker Products Brand Line
Walker Products offers a range of ignition sensors engineered to meet OEM specifications. The 235-2109 crankshaft position sensor is part of this product line, which focuses on delivering reliable and precise sensor components for engine management systems. This ensures compatibility and performance consistency for vehicles like the Smart Fortwo.
Product Description and Function
The Walker 235-2109 engine crankshaft position sensor detects the rotational position and speed of the crankshaft in Smart Fortwo vehicles. This information is vital for the engine control unit (ECU) to regulate ignition timing and fuel injection. Proper sensor function helps maintain engine efficiency, reduces emissions, and prevents misfires.
Common Issues Addressed by This Sensor
- Engine stalling or rough idling in Smart Fortwo
- Difficulty starting the engine or no-start conditions
- Check engine light triggered due to crankshaft sensor faults
- Poor acceleration or reduced engine power
- Irregular engine timing affecting fuel efficiency
Installation Notes and Tips
When installing the Walker 235-2109 crankshaft position sensor, ensure the vehicle is turned off and cooled down. Locate the sensor on the engine block near the crankshaft pulley. Carefully disconnect the electrical connector and remove the old sensor. Install the new sensor securely, reconnect the wiring harness, and verify proper fitment with the Smart Fortwo model. It is recommended to check for any diagnostic trouble codes after installation.
Quality Assurance and Warranty
Walker Products maintains strict quality control standards for the 235-2109 crankshaft position sensor to ensure durability and reliable performance. While specific warranty details are not provided here, Walker typically offers coverage against manufacturing defects. Refer to the product packaging or manufacturer documentation for exact warranty terms.
This part fits 2 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2017 | Smart | Fortwo | 0.9L | L3 | N/A | Walker Products |
| 2016 | Smart | Fortwo | 0.9L | L3 | N/A | Walker Products |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.