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Oil Temperature Sensor
- Porsche 914 (1970-1976)
Fits:
Porsche 914 - 1970 to 1976
Cover for temperature sensor for oil, M10x1mm
Diagram ref no 49
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
021101267
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Fits:
Porsche 911 / 912 1969-76
Porsche 911 SC SPM 1978-83
Porsche 911 Turbo 3.0L 1975-77
Porsche 914
Diagram ref no 28
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90164163200
The product you are viewing cross references to these numbers
- Porsche 914 (1970-1976)
Maintain accurate engine management with this OE Match Cylinder Head Temperature Sensor, manufactured as a direct replacement. Produced to OE-style specifications, this sensor is designed to monitor cylinder head temperature and provide the engine management system with precise temperature data, allowing it to adjust fuel delivery and ignition timing for optimum engine performance, efficiency, and drivability.
Fits:
- Porsche 914 (1970-1976)
Over time, temperature sensors can deteriorate through repeated heat cycles, vibration, and age, leading to inaccurate temperature readings or complete sensor failure. A faulty cylinder head temperature sensor can cause poor starting, rough running, increased fuel consumption, and incorrect fuel mixture adjustments. Replacing the sensor restores accurate engine temperature monitoring and helps ensure the engine management system performs as intended. This OE Match cylinder head temperature sensor is ideal for routine maintenance, engine repairs, and Porsche restoration projects.
What This Product Does:
- Monitors the temperature of the engine cylinder head.
- Sends accurate temperature data to the engine management system.
- Helps optimise fuel delivery and ignition timing.
- Supports efficient engine performance and fuel economy.
- Contributes to reliable cold starting and smooth engine operation.
- Replaces faulty or inaccurate original temperature sensors.
- Provides an OE-style fit and dependable quality.
Symptoms Of Wear Or Failure:
- Difficult cold or hot starting.
- Rough idle or uneven engine running.
- Increased fuel consumption.
- Poor engine performance.
- Engine hesitation during acceleration.
- Incorrect fuel mixture caused by inaccurate temperature readings.
- Faulty sensor identified during engine diagnostics or restoration work.
Why Replacement Matters:
- The cylinder head temperature sensor is a critical engine management component that provides the control unit with accurate information about engine operating temperature. This data allows the engine management system to make precise adjustments to fuel injection and ignition timing, ensuring efficient combustion, reliable starting, and smooth engine performance.
- A faulty sensor can send inaccurate temperature readings, resulting in incorrect fuel mixtures, poor drivability, increased fuel consumption, and unnecessary strain on the engine. Replacing a worn or failed sensor restores accurate temperature monitoring and helps maintain reliable engine operation. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Cylinder Head Temperature Sensor provides the correct fit, dependable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
311906041A
The product you are viewing cross references to these numbers
- Porsche 914 (1970-1976)

Fits:
Porsche 914 1970-71
Porsche 914 1972-73 Engine: 1.7L 1679CC 103Cu. In. H4
Porsche 914 1974-76
*** excluding 914/6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
311906041A
The product you are viewing cross references to these numbers
Oil Temperature Sensors – Accurate Monitoring for Porsche Engine Protection
The oil temperature sensor plays a crucial role in your Porsche’s engine management system. It constantly monitors the temperature of your engine oil, transmitting this information to the ECU and dashboard to regulate cooling, lubrication, and performance. Maintaining the correct oil temperature is vital to prevent overheating, reduce friction, and ensure your Porsche performs at its best under every driving condition.
At Design911, we supply a wide selection of oil temperature sensors designed to deliver fast, accurate readings for classic and modern Porsche engines. Built using high-quality, heat-resistant materials and advanced electronic components, these sensors guarantee durability, reliability, and compatibility across multiple Porsche models.
Whether you’re restoring a vintage air-cooled 911 or maintaining a high-performance 992 GT3, our temperature sensors ensure dependable performance and protection for your engine.
What Do Oil Temperature Sensors Do?
Oil temperature sensors (sometimes called temperature senders) measure the oil’s heat level and provide data to control systems and gauges.
Core Functions:
- Monitor
engine oil temperature in real time.
- Send
data to the ECU for precise engine management.
- Adjust
cooling and lubrication for optimal efficiency.
- Warn
the driver of overheating before engine damage occurs.
- Help maintain consistent oil viscosity and pressure.
Accurate temperature readings are essential to preserve
performance and longevity — especially in high-output Porsche engines.
Why Do Oil Temperature Sensors
Fail?
Continuous exposure to high temperatures, oil pressure, and engine vibration can cause temperature sensors to degrade or malfunction over time.
Common Causes of Failure Include:
- Thermal
fatigue damaging sensor elements.
- Oil
contamination or sludge buildup on the sensor tip.
- Electrical
connector corrosion or wiring faults.
- Seal
degradation, causing leaks or inaccurate readings.
- Sensor short circuits from prolonged overheating.
Symptoms of failure include inaccurate temperature readings, warning light activation, or fluctuating gauge readings — all signs the sensor needs inspection or replacement.
Why Replace Temperature Sensors?
A failing oil temperature sensor can cause incorrect engine management adjustments, leading to overheating, oil degradation, or reduced performance. Replacing it with a high-quality, precision-engineered sensor restores accurate readings and ensures reliable operation.
Key Benefits:
- Restores precise oil temperature monitoring.
- Prevents overheating and engine wear.
- Improves ECU control and fuel efficiency.
- Constructed from heat- and corrosion-resistant materials.
- Direct-fit
compatibility for various Porsche models.
- Ideal for servicing, rebuilds, or performance upgrades.
A properly functioning temperature sensor is essential for maintaining your Porsche’s engine health, ensuring optimal lubrication and temperature regulation.
Highlights:
- Precision-built oil temperature sensors for Porsche models.
- Accurate, real-time monitoring for engine protection.
- Durable, heat-resistant design for long life.
- Improves performance and reliability under load.
- Compatible with Porsche 911, Cayman, Boxster, and more.
- Perfect for restoration, maintenance, or high-performance applications.