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- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Electric Window Relay
Restore reliable operation of your Porsche's electric
windows with this OE Match Electric Window Relay. This relay controls the electrical
power supplied to the power window system, ensuring smooth, dependable
operation every time you press the window switch.
Fits:
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
This OE Match relay installs directly into the factory relay board using the original relay location, making it an ideal replacement for worn, ageing or failed original relays.
Whether you're repairing intermittent window faults or carrying out preventative maintenance, using a OE Match relay ensures the correct electrical performance, durability and compatibility expected from an original factory component.
What Does the Electric Window Relay Do?
The electric window relay is an essential part of the vehicle's power window electrical circuit.
Its functions include:
- Controlling power delivery to the electric window motors.
- Providing switched electrical current to the window system.
- Protecting window switches from carrying high electrical loads.
- Ensuring smooth and reliable window operation.
- Supporting safe and consistent operation of both driver and passenger windows.
Without a correctly functioning relay, the power window system may not receive the electrical supply required for normal operation.
Why Do Electric Window Relays Fail?
Electrical relays operate every time the windows are used and are subjected to thousands of switching cycles throughout their service life.
Common causes of failure include:
- Internal contact wear.
- Heat generated by repeated electrical switching.
- Oxidation of electrical contacts.
- Age-related deterioration of internal components.
- Moisture entering the relay board.
- High electrical loads caused by ageing window motors or regulators.
As the relay ages, internal resistance increases, leading to unreliable or intermittent electrical operation.
When Should the Relay Be Replaced?
Replacement is recommended when:
- Electric windows stop working intermittently.
- Both windows fail to operate despite good switches and motors.
- The relay clicks but the windows do not move.
- Window operation becomes unreliable.
- Diagnosing electrical faults within the power window system.
- Restoring an original Porsche electrical system.
- Carrying out preventative maintenance on higher-mileage vehicles.
Replacing a faulty relay is often one of the quickest and most cost-effective ways to restore dependable electric window operation.
OE Match Features
- OE Match quality replacement.
- Manufactured to closely replicate original factory specifications.
- Plug-and-play installation.
- Correct switching characteristics for factory electrical systems.
- High-quality internal contacts for dependable operation.
- Durable construction for long service life.
- Ideal for restoration, repair and preventative maintenance.
Relay Board Location
For easy identification during installation:
- Porsche
944 / 968: Relay board position G7
- Porsche 928: Relay board position VI
Always verify the relay location using the appropriate workshop manual for your specific model year.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94461511601
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99654207
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
Fits:
for cars without M490 sound system
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Porsche 996 GT3 MKI
Important Notice: Please Read Before Purchasing
This product is supplied by Porsche with adhesive already applied. However, due to the packaging and handling process, you may need to apply additional adhesive to the membrane. This is how they are provided directly from the factory, and unfortunately, it’s beyond our control. Please note that these items are sold as-is and cannot be refunded. Be prepared to add extra adhesive if necessary for proper installation. Thank you for your understanding.
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99655583
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
Fits:
For cars WITH door speakers M490 / M680
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Important Notice: Please Read Before Purchasing
This product is supplied by Porsche with adhesive already applied. However, due to the packaging and handling process, you may need to apply additional adhesive to the membrane. This is how they are provided directly from the factory, and unfortunately, it’s beyond our control. Please note that these items are sold as-is and cannot be refunded. Be prepared to add extra adhesive if necessary for proper installation. Thank you for your understanding.
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Please Select left or right below
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99655583
The product you are viewing cross references to these numbers