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Sensors
By OE Match
Vehicle Group
- 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
Information
Automatic Transmission Contact Sensor.
Restore reliable automatic transmission operation with this OE Match Automatic Transmission Contact Sensor, manufactured as a direct replacement. Produced to OE-style specifications, this high-quality sensor is designed to detect and communicate the selector lever position to the vehicle's transmission control system, ensuring accurate gear selection and dependable automatic transmission performance.
Fits:
Diagram Ref No 2
The contact sensor is a vital component within the automatic transmission selector mechanism, allowing the vehicle's electrical systems to correctly identify the selected gear position. Over time, the original sensor can wear, become contaminated, or develop electrical faults, resulting in incorrect gear indication, intermittent starting problems, or erratic transmission operation. This OE Match replacement restores reliable communication between the selector mechanism and transmission control system, making it ideal for maintenance, repairs, and restoration projects.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
171927145A
The product you are viewing cross references to these numbers
Restore reliable automatic transmission operation with this OE Match Automatic Transmission Contact Sensor, manufactured as a direct replacement. Produced to OE-style specifications, this high-quality sensor is designed to detect and communicate the selector lever position to the vehicle's transmission control system, ensuring accurate gear selection and dependable automatic transmission performance.
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 a vital component within the automatic transmission selector mechanism, allowing the vehicle's electrical systems to correctly identify the selected gear position. Over time, the original sensor can wear, become contaminated, or develop electrical faults, resulting in incorrect gear indication, intermittent starting problems, or erratic transmission operation. This OE Match replacement restores reliable communication between the selector mechanism and transmission control system, making it ideal for maintenance, repairs, and restoration projects.
What This Product Does:
- Detects the position of the automatic transmission selector.
- Communicates gear selection to the transmission control system.
- Supports accurate and reliable transmission operation.
- Helps ensure the engine starts only in the correct selector positions.
- Maintains accurate gear position indication.
- Restores dependable communication between the selector and transmission.
- Provides an OE-style fit and reliable electrical performance.
Symptoms Of Wear Or Failure:
- Incorrect gear position displayed.
- Difficulty starting the vehicle in Park or Neutral.
- Intermittent no-start condition.
- Erratic or inconsistent automatic transmission operation.
- Gear selector position not recognised correctly.
- Transmission-related electrical fault codes.
- Corroded or damaged sensor connections.
- Age-related deterioration of the original component.
Why Replacement Matters:
- The automatic transmission contact sensor is an essential component that allows the transmission control system to accurately recognise the selected gear. A worn or faulty sensor can cause incorrect gear indication, unreliable starting, and inconsistent transmission performance, potentially affecting both safety and drivability.
- Replacing a defective contact sensor restores accurate gear position detection, dependable communication with the transmission control system, and smooth automatic transmission operation. Manufactured to OE-style specifications, this OE Match replacement provides the correct fit, reliable performance, and long-lasting durability, making it an excellent choice for routine maintenance and classic Porsche restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
171927145A
171927145A
The product you are viewing cross references to these numbers
Price: €10.74
Orderable
Vehicle Group
- 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
Information
Park / Neutral Position Switch.
Restore safe and reliable automatic transmission operation with this OE Match Park / Neutral Position Switch, manufactured as a direct replacement. Produced to OE-style specifications, this high-quality replacement switch is designed to accurately detect when the transmission selector is in the Park or Neutral position, allowing the engine to start only when it is safe to do so while providing the correct gear position signal to the vehicle's electrical systems.
Fits:
Diagram Ref No 3
The park / neutral position switch is an essential safety component fitted to Porsche models with automatic transmissions. Over time, internal electrical contacts can wear, contamination can affect operation, or the switch can become damaged or misaligned, leading to intermittent starting issues or incorrect gear position recognition. This OE Match replacement restores dependable operation and factory-style functionality, making it ideal for routine maintenance, repairs, and Porsche restoration projects.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
311927147B
The product you are viewing cross references to these numbers
Restore safe and reliable automatic transmission operation with this OE Match Park / Neutral Position Switch, manufactured as a direct replacement. Produced to OE-style specifications, this high-quality replacement switch is designed to accurately detect when the transmission selector is in the Park or Neutral position, allowing the engine to start only when it is safe to do so while providing the correct gear position signal to the vehicle's electrical systems.
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 3
The park / neutral position switch is an essential safety component fitted to Porsche models with automatic transmissions. Over time, internal electrical contacts can wear, contamination can affect operation, or the switch can become damaged or misaligned, leading to intermittent starting issues or incorrect gear position recognition. This OE Match replacement restores dependable operation and factory-style functionality, making it ideal for routine maintenance, repairs, and Porsche restoration projects.
What This Product Does:
- Detects when the transmission is in Park or Neutral.
- Allows the engine to start only in the correct selector positions.
- Prevents accidental engine starting while a drive gear is engaged.
- Sends accurate gear position signals to the vehicle's electrical systems.
- Supports safe and reliable automatic transmission operation.
- Replaces worn or faulty original switches.
- Provides an OE-style fit and dependable performance.
Symptoms Of Wear Or Failure:
- Engine will not start in Park or Neutral.
- Intermittent starting problems.
- Vehicle starts while in gear.
- Incorrect gear position indication.
- Transmission warning lights or fault codes.
- Inconsistent operation of the gear selector.
- Worn, damaged, or contaminated switch contacts.
- Age-related deterioration of the original component.
Why Replacement Matters:
- The park / neutral position switch is a critical safety component that ensures the engine can only be started when the automatic transmission is in Park or Neutral. A worn or faulty switch can lead to intermittent no-start conditions, inaccurate gear position signals, or, in severe cases, allow the engine to start while a drive gear is selected, creating a potential safety risk.
- Replacing a defective park / neutral position switch restores reliable starting, accurate transmission position detection, and the safe operation of your Porsche's automatic transmission system. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match component provides the correct fit, dependable performance, and long-lasting durability, making it an excellent choice for maintenance, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
311927147B
311927147B
The product you are viewing cross references to these numbers
Price: €22.13
Orderable
DISPLAYING 1 to 2 (of 2 products)
About Sensors
OEMatch Sensors — Stopping Power, Consistent Control
OEMatch supplies a range of sensors for Porsche models that monitor gearbox and transmission systems to help restore accurate control and aid diagnostics. These items are commonly used during servicing, fault-finding and rebuilds where dependable speed, position, temperature and pressure inputs are required for correct shift control and system operation.
Available Types- Speed sensors
- Temperature sensors
- Pressure sensors
- Position and selector sensors
Understanding OEMatch Sensors
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original sensors.
OE (Original Equipment) refers to parts matching original specifications for the sensors and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM sensors engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
OE (Original Equipment) refers to parts matching original specifications for the sensors and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM sensors engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Transmission sensors collect real-time data such as shaft speeds, gear selector position, oil temperature and pressure. The transmission control unit uses this information to manage hydraulic pressure, shift timing and clutch engagement so gear changes remain smooth and consistent. Correct sensor signals also support adaptive shift strategies and provide diagnostic information when faults occur.
Benefits Include- Restores accurate monitoring for reliable shift control
- Reduces transmission error codes and improves diagnostic clarity
- Helps protect internal components by enabling correct thermal and pressure control
- Oil contamination or debris obstructing sensor contacts
- Electrical faults such as wiring chafing, shorts or connector corrosion
- Heat and vibration degrading electronic components over time
Replacing worn or faulty sensors helps maintain precise gearbox communication and avoids symptoms such as erratic shifting, warning lights and limp-home modes. OEMatch sensors are specified for Porsche applications to restore reliable inputs to the control unit, support accurate diagnostics and reduce the risk of downstream transmission damage caused by incorrect data signals.
Advantages
Designed for Porsche applications and model documentation
- Engineered as direct-fit alternatives to original-spec dimensions and tolerances
- Available for a wide range of gearbox types including manual, Tiptronic and PDK
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