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Oil Pressure Senders / Switches
Fits:
Porsche 911 1974-77
This product supersedes Porsche's old part numbers:
- 91160611100
Diagram Ref No 47
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160611102
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 1974-77
This product supersedes Porsche's old part numbers:
- 91160611100
Diagram Ref No 47.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160611102
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Shop Securely
12 Month Warranty
Worldwide Delivery
Oil Pressure Sender Unit
The Oil Pressure Sender Unit is a critical engine monitoring
component fitted to the Porsche 911 SC from 1978 to 1983. Designed to
continuously monitor engine oil pressure and transmit accurate readings to the
dashboard gauge, this sender unit allows drivers to keep track of one of the
most important indicators of engine health.
Fits:
- Porsche 911 1978-1983 3.0L / SC
Diagram ref no 45
On air-cooled Porsche engines, maintaining correct oil pressure is essential for lubrication, cooling, and long-term engine protection. The oil pressure sender unit converts oil pressure into an electrical signal that is displayed on the instrument cluster, providing real-time feedback on the condition of the lubrication system.
A faulty sender unit can result in inaccurate readings, fluctuating gauge behaviour, or complete loss of oil pressure indication, making replacement an important part of preventative maintenance and engine reliability.
What Does the Oil Pressure Sender Unit Do?
The oil pressure sender measures the pressure generated within the engine's lubrication system and sends a corresponding electrical signal to the oil pressure gauge.
This enables the driver to:
- Monitor engine oil pressure in real time
- Identify lubrication issues before serious damage occurs
- Detect low oil pressure conditions
- Verify correct oil circulation throughout the engine
- Monitor engine health during normal driving and performance use
Because the Porsche 911 SC uses an air-cooled engine with a sophisticated dry-sump lubrication system, accurate oil pressure readings are particularly important for protecting valuable engine components.
Why Does the Oil Pressure Sender Unit Fail?
Oil pressure sender units operate in a harsh environment exposed to heat, vibration, oil contamination, and age-related deterioration.
Common causes of failure include:
- Internal electrical wear
- Diaphragm deterioration
- Oil contamination inside the sender
- Corrosion of electrical terminals
- Heat-related degradation
- Vibration damage Internal sealing failure causing oil leaks
- Age-related sensor inaccuracy
As the sender ages, readings may become erratic, inaccurate, or completely non-functional.
Common Symptoms of a Faulty Oil Pressure Sender
A failing oil pressure sender unit may cause:
- Oil pressure gauge fluctuating unexpectedly
- Incorrect oil pressure readings
- Gauge reading permanently high or low
- Intermittent gauge operation
- No oil pressure indication at all
- Oil leakage from the sender body
- Dashboard oil pressure concerns despite normal engine operation
In many cases, the sender unit itself is the source of the problem rather than the engine's oil pressure system.
When Should You Replace It?
Replacement is recommended when:
- Oil pressure readings become unreliable
- The gauge behaves erratically
- The sender develops an oil leak
- During engine restoration work
- When replacing ageing engine sensors
- As part of preventative maintenance on high-mileage vehicles
- During diagnosis of oil pressure-related dashboard faults
Replacing a faulty sender restores confidence in your oil pressure monitoring system and helps ensure that genuine lubrication issues can be identified quickly.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160611103
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Shop Securely
12 Month Warranty
Worldwide Delivery
Oil Pressure Sender Unit
The Oil Pressure Sender Unit is a critical engine monitoring
component fitted to the Porsche 911 SC from 1978 to 1983. Designed to
continuously monitor engine oil pressure and transmit accurate readings to the
dashboard gauge, this sender unit allows drivers to keep track of one of the
most important indicators of engine health.
Fits:
- Porsche 911 1978-1983 3.0L / SC
Diagram ref no 45
On air-cooled Porsche engines, maintaining correct oil pressure is essential for lubrication, cooling, and long-term engine protection. The oil pressure sender unit converts oil pressure into an electrical signal that is displayed on the instrument cluster, providing real-time feedback on the condition of the lubrication system.
A faulty sender unit can result in inaccurate readings, fluctuating gauge behaviour, or complete loss of oil pressure indication, making replacement an important part of preventative maintenance and engine reliability.
What Does the Oil Pressure Sender Unit Do?
The oil pressure sender measures the pressure generated within the engine's lubrication system and sends a corresponding electrical signal to the oil pressure gauge.
This enables the driver to:
- Monitor engine oil pressure in real time
- Identify lubrication issues before serious damage occurs
- Detect low oil pressure conditions
- Verify correct oil circulation throughout the engine
- Monitor engine health during normal driving and performance use
Because the Porsche 911 SC uses an air-cooled engine with a sophisticated dry-sump lubrication system, accurate oil pressure readings are particularly important for protecting valuable engine components.
Why Does the Oil Pressure Sender Unit Fail?
Oil pressure sender units operate in a harsh environment exposed to heat, vibration, oil contamination, and age-related deterioration.
Common causes of failure include:
- Internal electrical wear
- Diaphragm deterioration
- Oil contamination inside the sender
- Corrosion of electrical terminals
- Heat-related degradation
- Vibration damage Internal sealing failure causing oil leaks
- Age-related sensor inaccuracy
As the sender ages, readings may become erratic, inaccurate, or completely non-functional.
Common Symptoms of a Faulty Oil Pressure Sender
A failing oil pressure sender unit may cause:
- Oil pressure gauge fluctuating unexpectedly
- Incorrect oil pressure readings
- Gauge reading permanently high or low
- Intermittent gauge operation
- No oil pressure indication at all
- Oil leakage from the sender body
- Dashboard oil pressure concerns despite normal engine operation
In many cases, the sender unit itself is the source of the problem rather than the engine's oil pressure system.
When Should You Replace It?
Replacement is recommended when:
- Oil pressure readings become unreliable
- The gauge behaves erratically
- The sender develops an oil leak
- During engine restoration work
- When replacing ageing engine sensors
- As part of preventative maintenance on high-mileage vehicles
- During diagnosis of oil pressure-related dashboard faults
Replacing a faulty sender restores confidence in your oil pressure monitoring system and helps ensure that genuine lubrication issues can be identified quickly.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160611103
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 1969-89
Click 'Zoom in' for large parts diagram.
Diagram ref no 45
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160623001
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- 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 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 1969-89
Diagram ref no 45
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160623001
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- 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 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 T / T-V - 1969 to 1971
Porsche 911 1974 to 1977
Porsche 911 SC - 1978 to 1983
Porsche 911 3.2 Carrera - 1984 to 1989
Porsche 914-6 - 1970 to 1976
Click 'Zoom in' for large parts diagram.
Diagram ref no 42
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110117503
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 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Shop Securely
12 Month Warranty
Worldwide Delivery
Engine Oil Pressure Switches & Senders – Precision Monitoring for Porsche Engines
The engine oil pressure switch or sender unit is a vital component of your Porsche’s lubrication system. Its primary role is to monitor oil pressure and send signals to your dashboard, ensuring the engine always maintains sufficient lubrication. A properly functioning oil pressure sender safeguards against engine wear, overheating, and performance loss.
At Design911, we supply a full range of oil pressure switches and sender units for classic and modern Porsche models. Built from high-quality, heat-resistant materials, these components are designed for durability, accuracy, and consistent performance under demanding driving conditions.
Whether you’re restoring a classic 911, maintaining a Cayenne, or servicing a Cayman, our oil pressure senders and switches provide dependable pressure monitoring and peace of mind every time you drive.
What Do Oil Pressure Switches & Senders Do?
Oil pressure switches and senders work together to ensure your engine has the correct oil pressure for proper lubrication.
Core Functions:
- Monitor
oil pressure in the engine’s lubrication system.
- Transmit
readings or alerts to the vehicle’s dashboard gauge or warning light.
- Protect
engine components by warning of low oil pressure.
- Ensure stable oil circulation during all driving conditions.
Accurate oil pressure monitoring prevents engine damage and maintains optimal performance, making these parts essential to Porsche reliability.
Why Do Oil Pressure Switches & Senders Fail?
Over time, exposure to heat, vibration, and oil contamination can cause pressure switches and sensors to deteriorate or malfunction.
Common Causes of Failure Include:
- Oil
contamination clogging internal diaphragms or ports.
- Electrical
corrosion or connector failure.
- Seal
degradation, leading to oil leaks.
- Wear
and tear from repeated heat cycles.
- Faulty readings due to sensor fatigue or wiring damage.
Symptoms of a failing sender include flickering oil pressure lights, inaccurate gauge readings, oil leaks, or false low-pressure warnings, all of which can compromise performance or lead to unnecessary engine risk.
Why Replace Components?
A reliable oil pressure reading is crucial for the health of your Porsche engine. Replacing worn switches or senders with precision-engineered, high-quality components ensures dependable performance, accurate readings, and long-term protection.
Key Benefits:
- Restores accurate oil pressure readings.
- Prevents false dashboard warnings.
- Protects against engine wear and overheating.
- Constructed from heat- and corrosion-resistant materials.
- Direct-fit
design for easy installation and compatibility.
- Ideal for performance maintenance, rebuilds, or upgrades.
By replacing a faulty sender or switch, you’ll preserve accurate oil pressure data and maintain the performance and longevity of your Porsche engine.
Highlights:
Precision-engineered
Porsche oil pressure senders and switches.
Reliable
oil monitoring for consistent engine protection.
Heat-
and corrosion-resistant materials for long life.
Direct-fit
compatibility for Porsche 911, Cayman, Boxster & Panamera.
Prevents
false warnings and ensures accurate oil pressure readings.
Perfect
for preventive maintenance or complete engine rebuilds.
-
Filler Neck Parts
-
Oil Tank & Parts
-
Oil Level Senders
-
Oil Pressure Relief Valve
-
Oil Pipes & Hoses
-
Breather Pipes
-
Camshaft Lines
-
Oil Separators & Vent lines
-
Oil Pumps & Gaskets
-
Oil Coolers / Radiators / Heat Exchangers
-
Oil Sump
-
Oil Thermostat
-
Oil Filter Housing
-
Oil Temperature Sensor
-
Oil Level Dipstick
-
Elephant racing systems
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Saturday: Closed
Sunday: Closed