Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Sensors
By OE Match
- 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
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
The product you are viewing cross references to these numbers
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
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.
- Engineered as direct-fit alternatives to original-spec dimensions and tolerances
- Available for a wide range of gearbox types including manual, Tiptronic and PDK