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Temperature Sensor
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 944 2.5L 8V 1982-87

Fits:
Porsche 924 1976-85
Porsche 944 1982-85
Click picture for large parts diagram.
Diagram Ref No 21.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
047919501A
The product you are viewing cross references to these numbers
Temperature Sensors – Accurate Engine Monitoring for
Porsche Performance
Temperature sensors play a critical role in your
Porsche’s engine and cooling system by constantly monitoring temperatures such
as coolant, oil, intake air, and exhaust gases. These sensors send real-time
data to the engine control unit (ECU), helping to regulate performance,
emissions, and fuel efficiency.
At Design911, we stock a comprehensive selection of genuine and high-quality temperature sensors for various Porsche models such as 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each sensor is designed for precision, reliability, and longevity — ensuring accurate readings and smooth engine operation in all driving conditions.
What Do Temperature Sensors Do?
Temperature sensors are vital to maintaining your Porsche’s
performance, safety, and efficiency. Their main functions include:
- Monitoring
coolant and engine temperature to prevent overheating.
- Feeding
data to the ECU to adjust fuel mixture and ignition timing.
- Controlling
fan activation and emission systems.
- Ensuring optimal engine performance under all loads and climates.
Accurate sensor readings are essential for protecting your engine, maximising power, and improving fuel economy.
Why Do Temperature Sensors Fail?
Constant exposure to heat, vibration, and contaminants can
cause temperature sensors to degrade or fail. Common causes include:
- Thermal
fatigue leading to inaccurate readings.
- Corrosion
or oxidation on connectors.
- Coolant
or oil contamination damaging sensor elements.
- Wiring
faults or loose electrical connections.
- Age-related wear causing signal irregularities.
Symptoms of a failing temperature sensor include fluctuating temperature gauge readings, poor fuel economy, rough idle, overheating, or an illuminated check engine light.
Why Replace Faulty Temperature Sensors?
Replacing a faulty temperature sensor is essential for accurate engine management and protection. A malfunctioning sensor can cause incorrect fueling, overheating, and even engine damage.
Benefits of replacement include:
- Accurate temperature readings and ECU adjustments.
- Enhanced fuel efficiency and performance.
- Prevention of overheating and engine damage.
- Reliable operation with manufacturer-quality precision.
All sensors in our range are made using high-grade materials and advanced sensing elements to provide reliable data, quick response times, and long service life in even the most demanding conditions.
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