HomeIgnition > SensorsPrenco 4E-1021 Engine Camshaft Position Sensor
Part #: 4E-1021

Prenco 4E-1021 Engine Camshaft Position Sensor

⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, 325i, 325is, 525i, M3, and 525iT
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Overview of Prenco Engine Camshaft Position Sensor 4E-1021

The Prenco Engine Camshaft Position Sensor 4E-1021 is designed for precise engine timing and performance in select BMW models. This sensor ensures accurate camshaft position detection, essential for optimal engine operation in vehicles like the BMW 325i and M3.

  • Terminal Type: Blade
  • Wire Quantity: 1
  • Grade Type: Regular
  • Connector Quantity: 1
  • Connector Shape: Rectangular
  • Terminal Quantity: 3
  • Connector Gender: Female
  • Mounting Bracket: Not included

Detailed Product Description

The Prenco 4E-1021 camshaft position sensor features a single wire and a blade terminal type, designed to provide reliable electrical connectivity. Its rectangular female connector with three terminals ensures a secure and stable connection to the vehicle’s engine control unit. This sensor is manufactured to regular grade specifications, suitable for standard engine performance requirements. Although it does not include a mounting bracket, it is engineered to fit directly into the camshaft housing of compatible BMW models.

Compatible BMW Models and Applications

This engine camshaft position sensor is compatible with several BMW vehicles, including the 325i, 325is, 525i, 525iT, and M3. It is specifically designed to meet the OEM specifications for these models, ensuring proper fitment and function. The part number 4E-1021 should be referenced when searching for a replacement sensor for these BMW vehicles.

Common Issues Addressed by the Camshaft Position Sensor

  • Engine misfires or rough idling
  • Difficulty starting the engine
  • Check engine light related to camshaft timing
  • Poor acceleration or reduced engine power
  • Irregular fuel injection timing

Installation Notes and Tips

When installing the Prenco 4E-1021 sensor, ensure the engine is cool and the battery is disconnected to prevent electrical shorts. The sensor’s blade terminal and rectangular female connector require careful alignment to avoid damage. Since the mounting bracket is not included, use the existing bracket or mounting point on the vehicle. Verify the sensor is securely seated to maintain accurate camshaft position readings.

Quality Assurance and Warranty Information

Prenco manufactures the 4E-1021 camshaft position sensor to meet industry standards for durability and performance. While this product is classified as regular grade, it undergoes quality control testing to ensure reliable operation in compatible BMW models. Warranty details should be confirmed with the distributor or retailer at the time of purchase.

BrandPrenco
Part Number4E-1021
Connector GenderFemale
Connector Quantity1
Connector ShapeRectangular
Grade TypeRegular
Mounting Bracket IncludedNo
Terminal Quantity3
Terminal TypeBlade
Wire Quantity1

This part fits 11 vehicles. Search below:

YearMakeModelPositionNotes
1995BMW325iN/A
1995BMW325isN/A
1995BMW525iN/A
1995BMWM3N/A
1994BMW325iN/A
1994BMW325isN/A
1994BMW525iN/A
1993BMW325iN/A
1993BMW325isN/A
1993BMW525iN/A
1993BMW525iTN/A

* 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:

023210300312 14 1 740 959180-04299630CSS880PC384S10148SU5158

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.