HomePrenco 4D-1070 Engine Crankshaft Position Sensor
Part #: 4D-1070

Prenco 4D-1070 Engine Crankshaft Position Sensor

14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: BMW, 325i, 325is, 525i, and 525iT
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Overview of Prenco Engine Crankshaft Position Sensor 4D-1070

The Prenco 4D-1070 Engine Crankshaft Position Sensor is designed for precise engine timing and performance in select BMW models. This sensor ensures accurate crankshaft position data, essential for optimal engine operation in BMW 325i, 325is, 525i, and 525iT vehicles.

  • Wiring harness length: 26.0 inches for flexible installation
  • Blade terminal type with 3 male terminals for secure electrical connection
  • Single wire and connector quantity for streamlined integration
  • Rectangular female connector shape for compatibility with factory wiring
  • Sensor body diameter of 0.71 inches for proper fitment
  • Mounting bracket not included, designed for direct replacement

Technical Details and Specifications

The Prenco 4D-1070 crankshaft position sensor features a 26-inch wiring harness, providing sufficient length for installation in BMW 325i, 325is, 525i, and 525iT models. It uses a blade terminal type with three male terminals, ensuring a reliable electrical connection. The sensor includes one rectangular female connector, matching the OEM connector style for straightforward plug-and-play replacement. With a sensor body diameter of 0.71 inches, it fits precisely in the designated engine location. Note that this sensor does not come with a mounting bracket and is intended to be installed using the existing hardware.

Compatible BMW Models and Applications

This crankshaft position sensor is compatible with the following BMW models: 325i, 325is, 525i, and 525iT. It is engineered to meet the specific requirements of these vehicles, providing accurate crankshaft position data critical for engine timing and fuel injection control.

Common Issues Addressed by the Crankshaft Position Sensor

  • Engine misfires or rough idling due to inaccurate crankshaft data
  • Difficulty starting the engine or no-start conditions
  • Check engine light triggered by sensor faults
  • Poor engine performance and reduced fuel efficiency
  • Intermittent stalling or hesitation during acceleration

Installation Notes and Tips

When installing the Prenco 4D-1070 sensor, ensure the wiring harness is routed away from high-heat areas to prevent damage. Verify the connector securely mates with the vehicle’s wiring harness to avoid electrical issues. Since the sensor does not include a mounting bracket, use the original bracket and hardware for proper installation. It is recommended to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty Information

Prenco manufactures the 4D-1070 crankshaft position sensor to meet industry standards for durability and performance. While specific warranty details are not provided, Prenco products typically undergo quality control testing to ensure reliable operation in BMW 325i, 325is, 525i, and 525iT vehicles. For warranty information, refer to the product documentation or contact the distributor.

BrandPrenco
Part Number4D-1070
Connector GenderFemale
Connector Quantity1
Connector ShapeRectangular
Mounting Bracket IncludedNo
Sensor Body Diameter0.71
Terminal GenderMale
Terminal Quantity3
Terminal TypeBlade
Wire Quantity1
Wiring Harness Length26.0

This part fits 14 vehicles. Search below:

YearMakeModelPositionNotes
1995BMW325iN/A
1995BMW325isN/A
1995BMW525iN/A
1994BMW325iN/A
1994BMW325isN/A
1994BMW525iN/A
1993BMW325iN/A
1993BMW325isN/A
1993BMW525iN/A
1993BMW525iTN/A
1992BMW325iN/A
1992BMW325isN/A
1992BMW525iN/A
1991BMW525iN/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:

12 14 1 726 066180-04119603CSS887PC231SU5151

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