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- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Porsche 928 RDK Tyre Pressure Sensor Dummies –
Cost-Effective TPMS Replacement Solution
Set for 1 wheel - 4 sets required per car
The Porsche 928 models from 1990 onwards were equipped with RDK (Reifen Druck Kontrolle) tyre pressure monitoring sensors. Each wheel contains two factory sensors designed to monitor tyre pressure and alert the driver to pressure loss.
Fits:
- Porsche 928 S4 5.0L 1987-92
- Porsche 928 GT 5.0L 1989-91
- Porsche 928 GTS 5.4L 1992-95
Replacement for diagram Ref No 6, 7 and 8
While advanced for their time, original Porsche 928 RDK sensors are now commonly failing due to age. Replacement sensors are expensive and increasingly difficult to source.
Our Porsche 928 RDK tyre pressure sensor dummy kit provides a practical, cost-effective alternative when refurbishing wheels or removing a failed RDK system.
What These RDK Sensor Dummies Do
These precision-machined dummy units replace the original RDK tyre pressure sensors inside the wheel. They:
• Maintain correct sealing of the wheel
• Preserve the original mounting position
• Allow safe wheel use without active RDK sensors
• Provide a clean solution during wheel refurbishment or powder coating
When repowder coating or refurbishing Porsche 928 wheels, the original RDK sensors must be removed using special Porsche tools. Instead of reinstalling ageing or faulty sensors, these dummy units can be fitted in their place using the original installation method.
Why Upgrade to RDK Sensor Dummies?
Avoid High Replacement Costs
Original Porsche 928 RDK sensors are expensive to replace. If your system is no
longer operational or you are not relying on factory TPMS, dummy units offer a
far more economical solution.
Ideal for Wheel Refurbishment
When powder coating or restoring 928 alloy wheels, sensors must be removed.
Installing new dummy units prevents refitting old, fragile components.
Improved Corrosion Protection
The supplied nuts and dummy units feature a durable anodised coating for
long-term corrosion resistance. This offers improved protection compared to
ageing original mounting nuts. Even if your original nuts appear reusable,
fitting new anodised hardware is strongly recommended.
OEM-Compatible Installation
The dummy units can be installed using the original Porsche RDK installation
tools. According to the Porsche workshop manual, the correct tightening torque
for the mounting nut is 20 Nm.
Optional Protection Caps
Now also available with protective caps for additional durability and a cleaner
finish.
Installation Overview
• Remove tyre from rim
• Use Porsche RDK tool to remove sensor
• Install dummy unit using factory tool
• Tighten mounting nut to 20 Nm as per Porsche specification
Kit Contents
• 2x Tyre pressure sensor dummy units
• 2x Anodised mounting nuts
• 2x O-rings
Ideal For:
• Porsche 928 1990-on models with failed RDK (TPMS) sensors
• Owners deleting factory TPMS systems
• Wheel refurbishment and powder coating projects
• Restorations requiring safe and sealed wheel assemblies
• Cost-effective alternatives to OEM RDK replacement
If your Porsche 928 Tyre Pressure Monitoring System (TPMS) sensors have failed or you are refurbishing your wheels, this dummy kit offers the cleanest and most economical replacement option available.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
928361022REP
The product you are viewing cross references to these numbers