HomePrenco 4D-1129 Engine Crankshaft Position Sensor
Part #: 4D-1129

Prenco 4D-1129 Engine Crankshaft Position Sensor

2 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Volkswagen, Jetta
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Overview of Prenco Engine Crankshaft Position Sensor 4D-1129

The Prenco 4D-1129 Engine Crankshaft Position Sensor is designed specifically for Volkswagen Jetta models. This sensor plays a critical role in engine management by accurately monitoring the crankshaft's position and speed, ensuring optimal engine performance and timing.

  • Terminal Type: Blade for secure electrical connection
  • Connector Quantity: Single connector for streamlined installation
  • Connector Shape: Oblong design for precise fitment
  • Terminal Quantity: Three terminals to support accurate signal transmission
  • Terminal Gender: Male terminals compatible with factory wiring harness

Detailed Product Description

The Prenco 4D-1129 crankshaft position sensor features a blade terminal type that provides a reliable and corrosion-resistant connection. Its single oblong-shaped connector simplifies the installation process while maintaining a secure fit. With three male terminals, this sensor ensures consistent and accurate communication with the engine control unit (ECU). Engine timing and fuel injection rely heavily on the sensor's precise data, making it an essential component for Volkswagen Jetta vehicles.

Common Applications and Issues Addressed

  • Helps resolve engine misfires caused by inaccurate crankshaft position data
  • Prevents stalling and rough idling in Volkswagen Jetta models
  • Eliminates starting difficulties related to faulty sensor signals
  • Supports smooth acceleration by maintaining proper engine timing
  • Reduces check engine light triggers linked to crankshaft sensor faults

Installation Notes and Tips

When installing the Prenco 4D-1129 sensor, ensure the vehicle is turned off and the battery is disconnected to avoid electrical hazards. The oblong connector should align precisely with the factory wiring harness to prevent damage to terminals. Verify that the blade terminals are fully seated and secure before reassembling. It is recommended to inspect the sensor mounting area for debris or damage prior to installation to ensure optimal sensor performance.

Quality Assurance and Warranty

Prenco manufactures the 4D-1129 crankshaft position sensor to meet OEM specifications for Volkswagen Jetta vehicles. Each sensor undergoes rigorous testing to ensure durability and accurate signal output. While specific warranty details may vary, Prenco typically offers coverage against manufacturing defects to provide confidence in product reliability.

BrandPrenco
Part Number4D-1129
Connector Quantity1
Connector ShapeOblong
Terminal GenderMale
Terminal Quantity3
Terminal TypeBlade

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2006VolkswagenJettaN/A
2005VolkswagenJettaN/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:

045 906 433A180-055696280CSS1705PC705

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