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Porsche > Boxster 986/987/981 (1997-2016) > Boxster 986 2.5L 1997-99 > Electrical & Relays >

Window Mechanism

Window Mechanism

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DISPLAYING 1 to 8 (of 8 products)
Door Card Clip GREY. Porsche 996 / 986 Boxster - 99950750540
5
Door Card Clip GREY. Porsche 996 / 986 Boxster
Special Order item
99950750540
Product Information
Product Information
Door Card Clip GREY.

porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Porsche 996 GT3 MKI


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Diagram ref no 6

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99950750540
99950750540

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Door Card Clip WHITE Porsche 996 / 986 Boxster - 99950750540
2
Door Card Clip WHITE Porsche 996 / 986 Boxster
Special Order item
99950758240
Product Information
Product Information
Door Card Clip WHITE. 8.0 x 0.9

porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 MKI


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Diagram ref no 6

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99950758240
99950750540

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Door Card Expander Nut Porsche 996 / 986 Boxster - 99655583105, 99655583205
1
Door Card Expander Nut Porsche 996 / 986 Boxster
Special Order item
99950765140
Product Information
Product Information
Expander Nut. 9.0 x 0.9

porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 MKI


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Diagram ref no 7

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99950765140
99655583105
99655583205

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Inner door membrane seal. Porsche 996 / 986 Boxster - 99654207504, 99654207604, 996.542.075.04, 996.542.076.04
5
Inner door membrane seal. Porsche 996 / 986 Boxster
Special Order item
99655583
Product Information
Product Information
Inner door membrane seal.

porsche

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.


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Diagram ref no 4



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99655583
99654207504
99654207604
996.542.075.04
996.542.076.04

The product you are viewing cross references to these numbers
Inner door membrane seal. Porsche 996 / 986 Boxster - 99655583105, 99655583205
3
Inner door membrane seal. Porsche 996 / 986 Boxster
Special Order item
99655583
Product Information
Product Information
Inner door membrane seal.

porsche

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

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Related reference numbers
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99655583
99655583105
99655583205

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Rubber Seal Strip Porsche 996 / 986 Boxster - 99950750540
1
Rubber Seal Strip Porsche 996 / 986 Boxster
Special Order item
00004310100
Product Information
Product Information
Rubber Seal Strip.

porsche

Fits:
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 MKI


Click 'Zoom in' for large parts diagram.
Diagram ref no 4

Related reference numbers
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00004310100
99950750540

The product you are viewing cross references to these numbers
Window lift cable / regulator. Porsche 996 / Boxster 986 (Part No. 99654207504 / 99654207604) - 99654207504, 99654207604, 996.542.075.04, 996.542.076.04, 99654207505, 98654201603, 98654201503, 1688100870
1
Window lift cable / regulator. Porsche 996 / Boxster 986 (Part No. 99654207504 / 99654207604)
Special Order item
99654207
Product Information
Product Information
Window lift cable / regulator. Porsche 996 / Boxster 986 

porsche

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
99654207504
99654207604
996.542.075.04
996.542.076.04
99654207505
98654201603
98654201503
1688100870

The product you are viewing cross references to these numbers
Window lift cable / regulator. Porsche 996 / Boxster 986 (Part No. 99654207505 / 99654207605) - 99654207504, 99654207604, 996.542.075.04, 996.542.076.04, 99654207505, 99654207605, 98654201603, 98654201503 - GPWR-752088, GPWR-752089, KC-PR9008AFL, KC-PR9007AFR
1
Window lift cable / regulator. Porsche 996 / Boxster 986 (Part No. 99654207505 / 99654207605)
99654207
Product Information
Product Information
Window lift cable / regulator. Porsche 996 / Boxster 986 

oematch

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
99654207504
99654207604
996.542.075.04
996.542.076.04
99654207505
99654207605
98654201603
98654201503

The product you are viewing cross references to these numbers
DISPLAYING 1 to 8 (of 8 products)
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About Window Mechanism

Window mechanisms are the core components that allow your Porsche’s windows to move smoothly up and down. Located inside the door panel, these assemblies typically consist of a regulator, cables, pulleys, and guides that work together to raise or lower the glass when activated by the electric window motor and switch.

At Design911, we supply high-quality window mechanism assemblies for all Porsche models - from classic air-cooled 911s to the latest Boxster, Cayman, Cayenne, Macan, and Panamera. Each part is designed to restore precise window movement and perfect alignment, ensuring your car retains its comfort, performance, and style.

What Do Window Mechanisms Do?
The window mechanism (or regulator) transfers motion from the electric window motor to the glass. It ensures smooth, consistent, and balanced movement of the window within the guide rails. Depending on your Porsche model, the system may use a cable-operated, scissor-type, or gear-driven design.

A correctly functioning window mechanism ensures:

  • Smooth and quiet window travel.
  • Secure sealing against wind and rain.
  • Reliable operation for ventilation and safety.

Why Do Window Mechanisms Fail?

Over time, window regulators can wear out due to repeated use, exposure to moisture, and mechanical stress. Common causes of failure include:

  • Broken cables or pulleys: Caused by corrosion or tension fatigue.
  • Worn plastic clips or guides: Often brittle with age or temperature changes.
  • Motor strain: Caused by a stiff or misaligned regulator.
  • Internal gear damage: Resulting in uneven or stuck window travel.

Signs of failure include grinding noises, slow window operation, or glass stuck halfway.

Why Replace Faulty Window Mechanisms?

A failing window mechanism compromises both comfort and safety. A window that won’t close properly can let in rain, reduce security, or fail an MOT test. Replacing a worn mechanism ensures:

  • Restored smooth window movement.
  • Improved cabin comfort and quietness.
  • Proper sealing and protection from elements.
  • Prevention of further motor or switch damage.

Design911 offers OEM-spec and genuine Porsche window mechanisms for an exact fit and long service life — the ideal solution to restore factory-quality operation and appearance.

 

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