Automatic Transmission Contact Sensor. Porsche 924 / 944  ❭  171927145A

Automatic Transmission Contact Sensor.
Restore reliable automatic transmission operation with this Genuine Porsche Automatic Transmission Contact Sensor, manufactured to Porsche's original equipment specification and supplied under part number 171927145A. This precision-engineered sensor is designed to monitor and communicate the selector lever position to the transmission control system, ensuring accurate gear selection and the safe operation of the automatic transmission.

Fits:

• Porsche 924 2.0L 1976-79
• Porsche 924 2.0L 1980-85
• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87
• Porsche 944 2.7L 8V 1988-89
• Porsche 944S 2.5L 16V 1987-88
• Porsche 944S2 3.0L 16V 1989-91 

 
Diagram Ref No 2

The contact sensor is an essential component within the gear selector mechanism, allowing the vehicle's electrical systems to recognise the selected gear position. Over time, the sensor can wear, become contaminated, or suffer electrical failure, leading to incorrect gear indication, starting issues, or erratic transmission behaviour. Replacing the contact sensor restores dependable communication between the gear selector and transmission system, helping to maintain smooth and reliable operation.  

What This Product Does:

• Detects the position of the automatic transmission selector.
• Communicates gear selection to the vehicle's electrical systems.
• Supports accurate transmission operation.
• Helps ensure the engine only starts in the correct selector positions.
• Maintains correct gear indication.
• Restores reliable communication between the selector and transmission.
• Provides Genuine Porsche fit, quality, and performance.

Symptoms Of Wear Or Failure:

• Incorrect gear position displayed.
• Difficulty starting the vehicle in Park or Neutral.
• Intermittent starting issues.
• Erratic or inconsistent transmission behaviour.
• Gear selector position not recognised correctly.
• Electrical faults relating to the transmission selector.
• Visible corrosion or damage to the sensor.
• Age-related deterioration of the original component.

Why Replacement Matters:

• The automatic transmission contact sensor is a vital component that ensures the transmission control system accurately identifies the selected gear. A faulty sensor can affect starting safety, gear indication, and overall transmission performance, potentially leading to unreliable vehicle operation.
• Replacing a worn or faulty contact sensor restores accurate gear position detection, reliable transmission communication, and dependable starting functionality. As a Genuine Porsche replacement part, it provides the correct fit, precise operation, and long-term durability required to maintain the safety, reliability, and original performance of your Porsche's automatic transmission system.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

171927145A

The product you are viewing cross references to these numbers