Oil Level Senders
Fits:
Porsche 911 1965-89
Diagram Ref No 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91420189100
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)


Fits:
Porsche 911 1965-73
Click 'Zoom in' for large parts diagram.
Diagram Ref No 35.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90164154100
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)


Fits:
Porsche 911 S 1973 2.7L
TYP:
- 911/53
- 911/63
- 911/83
- 911/88
Fits into oil tank numbers:
- 91110700611
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91164154100
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 S 1973 2.7L
TYP:
- 911/53
- 911/63
- 911/83
- 911/88
Fits into oil tank numbers:
- 91110700611
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91164154100
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
First early version

Fits:
Porsche 911 01/1963-07/1973
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90174154100
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)

Fits:
Porsche 911 01/1963-07/1973
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90164154100
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)
Engine Oil Level Sender Units – Accurate Monitoring for Porsche Engine Health
The engine oil level sender unit is an essential part of your Porsche’s lubrication system, responsible for monitoring oil levels and sending accurate readings to the instrument cluster. It ensures that your engine maintains the correct amount of oil for proper lubrication, helping prevent overheating, friction, and potential engine failure.
At Design911, we offer a comprehensive range of oil level sender units designed to deliver reliable, accurate readings under all driving conditions. Each component is built to manufacturer-quality standards using durable, heat-resistant materials for consistent performance, even in high-temperature environments.
Whether you’re maintaining a modern 992 or restoring a classic 911, our engine oil level sensors and sender units provide dependable functionality and long-term reliability — ensuring your Porsche’s engine remains properly protected.
What Do Oil Level Sender Units Do?
Oil level sender units (or oil level sensors) measure the volume of oil in your engine’s sump or reservoir and transmit that information to your dashboard.
Core Functions:
- Continuously
monitor oil level during engine operation.
- Send
data to the driver display for real-time oil status.
- Warn
the driver of low oil levels before damage occurs.
- Assist in maintaining correct lubrication and cooling balance.
By providing real-time feedback, these components help protect your Porsche from lubrication-related issues and costly engine damage.
Why Do Oil Level Sender Units Fail?
Over time, exposure to oil residue, heat, and vibration can cause oil level sender units to degrade or malfunction, leading to inaccurate readings.
Common Causes of Failure Include:
- Sensor
contamination from sludge, debris, or burnt oil.
- Electrical
failure or corroded connectors.
- Worn
seals or gaskets, causing oil leaks.
- Short
circuits or internal faults in the sensor module.
- Mechanical damage from incorrect installation or impact.
Symptoms of failure include false oil warnings, fluctuating readings, or oil light illumination, even when the oil level is correct. These signs indicate that the sender unit needs inspection or replacement.
Why Replace Oil Level Sender Units?
A faulty oil level sensor can lead to incorrect oil readings — and potentially engine damage if a low-oil warning is missed. Replacing it with a precision-engineered sender unit restores reliable oil level monitoring and ensures consistent engine protection.
Key Benefits:
- Restores accurate oil level readings.
- Prevents false warnings and dashboard errors.
- Improves lubrication system reliability.
- Constructed from high-durability, heat-resistant materials.
- Direct-fit
compatibility for a wide range of Porsche engines.
- Ideal for maintenance, rebuilds, or preventive servicing.
Replacing the oil level sender unit ensures optimal performance, protection, and peace of mind — vital for keeping your Porsche running as intended.
Highlights:
- Precision-engineered oil level sender units for
- Porsche models. Reliable and accurate oil level monitoring.
- Improves engine safety and performance.
- Resists heat, corrosion, and oil contamination.
- Direct-fit installation with plug-and-play compatibility.
- Perfect for preventive maintenance or rebuilds.