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Porsche > 997 (911) MK2 2009-2012 > 997 MKII Carrera C4S 3.8L 2009-12 > Electrical & Relays >

Window Mechanism

Window Mechanism

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DISPLAYING 1 to 5 (of 5 products)
Door inner panel. Porsche 987 Boxster / 987 Cayman / 997 - 99753790100, 99753790200, 98753720201, 98753720203, 98753720101, 98753720103
2
Door inner panel. Porsche 987 Boxster / 987 Cayman / 997
Special Order item
98753720
Product Information
Product Information
Door inner panel.

porsche

Fits:
Porsche 997.1 Carrera / Turbo 2006-08
Porsche 997.2 Carrera / Turbo 2009-12
Porsche 997 GT3 2007-11
Porsche 987.1 Boxster 2006-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2006-08
Porsche 987C.2 Cayman 2009-12

For new lining seal order 99955117240.

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

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Related, superseded, cross reference or alternative numbers for comparison.

98753720
99753790100
99753790200
98753720201
98753720203
98753720101
98753720103

The product you are viewing cross references to these numbers
Window Lift Cable, Left. Porsche 987 Boxster / 997.1 / 997.2 / Cayman 2006>> - 98754207501, 98754207503, 98754207504 - 861031
2
Window Lift Cable, Left. Porsche 987 Boxster / 997.1 / 997.2 / Cayman 2006>>
98754207504/2
Product Information
Product Information
Window Lift Cable, Left. 
Restore smooth and dependable operation of the left-side window with this Valeo Window Lift Cable, Left. Valeo is a recognised Original Equipment supplier of automotive electrical and comfort-system components, producing high-quality replacement parts designed for accurate fit, reliable operation, and long service life.

Fits:
  • Porsche Boxster 987 2.7L 2005-08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  • Porsche Boxster 987 MKII 2.9L 2009-12
  • Porsche Boxster S 987 MKII 3.4L 2009-12
  • Porsche 997 MK1 Carrera 2 3.6L 2005-08
  • Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  • Porsche 997 MK1 Carrera 4 3.6L 2005-08
  • Porsche 997 MK1 Carrera 4S 3.8L 2005-08
  • Porsche 997 MK1 TURBO 2007-09
  • Porsche 997 MK1 GT3 / GT3 RS 2007-09
  • Porsche 997 MK1 GT2 2007-09
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche 997 MKII GT3 / GT3 RS 2010-11
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 997 MKII GT2 RS 2011-13
  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12  

Diagram Ref No 1

The window lift cable is a critical part of the window regulator mechanism. When the electric window switch is operated, the window motor drives the regulator while the cable transfers movement through the mechanism to raise or lower the window glass. Correct cable tension and smooth movement are essential for keeping the glass correctly aligned within its guides and ensuring consistent opening and closing.  

What This Product Does:
  • Forms part of the electric window regulator mechanism.
  • Transfers movement through the regulator to the window carrier.
  • Enables the left-side window glass to raise and lower.
  • Helps maintain correct window alignment during operation.
  • Supports smooth and consistent window movement.
  • Maintains the required cable tension within the regulator mechanism.
  • Replaces a stretched, frayed, kinked, or broken cable.
  • Provides an OE-quality replacement for the original component.

Symptoms Of Wear Or Failure:
  • Left window failing to raise or lower.
  • Window moving slowly or unevenly.
  • Glass tilting or becoming misaligned during operation.
  • Window becoming stuck in one position.
  • Glass dropping unexpectedly inside the door.
  • Grinding, clicking, scraping, or crunching noises from inside the door.
  • Window motor operating while the glass remains stationary.
  • Window requiring assistance to move up or down.
  • Window failing to close completely.
  • Visible fraying, stretching, kinking, or breakage of the regulator cable.

Why Replacement Matters:

  • The window lift cable is essential for transferring movement through the regulator and accurately controlling the position of the window glass. A stretched or frayed cable can cause slow, noisy, or uneven window movement, while a broken cable can leave the glass completely inoperative or allow it to drop unexpectedly.
  • A window that cannot close correctly can expose the vehicle interior to rain, moisture, dirt, and potential security risks. Incorrect glass alignment may also affect sealing against the window weatherstrips, potentially contributing to wind noise or water ingress.
  • Continuing to operate the electric window with a damaged cable can place additional strain on the motor, pulleys, guides, and other regulator components, potentially increasing the extent and cost of the repair.
  • Replacing the worn or damaged component with this Valeo Window Lift Cable, Left 98754207504/2 restores smooth window movement, helps maintain correct glass alignment, and supports dependable operation of the electric window system. Manufactured to Valeo's high-quality standards, this replacement cable provides accurate fit, reliable function, and long-term durability for Porsche maintenance and repair.



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

98754207504
98754207501
98754207503
98754207504

The product you are viewing cross references to these numbers
Window lift cable. Porsche 987 Boxster / 997.1 / 997.2 / Cayman 2006>> - 98754207501, 98754207601, 98754207503, 98754207603, 98754207604, 98754207504 - KC-PR9012AFL, KC-PR9011AFR
1
Window lift cable. Porsche 987 Boxster / 997.1 / 997.2 / Cayman 2006>>
98754207
Product Information
Product Information
Window lift cable. for RHD or LHD cars 
Car 2006 Onwards

oematch

Fits:
Porsche 997.1 2006>>
Porsche 987 Boxster 2006>>
Porsche Cayman 2006>>
Porsche 997.2 2009>>

When ordering parts what's Left or Right Side ?

Left and right is always determined as you are sitting in the vehicle it will be your left side or right side regardless of the vehicle being left hand drive or right hand drive

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

98754207
98754207501
98754207601
98754207503
98754207603
98754207604
98754207504

The product you are viewing cross references to these numbers
Window lift cable. Porsche 987 Boxster / 997.1 / 997.2 / Cayman 2006>> - 98754207501, 98754207601, 98754207503, 98754207603, 98754207604, 98754207504 - URO-009855, URO-009856
1
Window lift cable. Porsche 987 Boxster / 997.1 / 997.2 / Cayman 2006>>
Special Order item
98754207
Product Information
Product Information
Window lift cable. for RHD or LHD cars
Car 2006 Onwards

porsche

Fits:
Porsche 997.1 2006>>
Porsche 987 Boxster 2006>>
Porsche Cayman 2006>>
Porsche 997.2 2009>>

When ordering parts what's Left or Right Side ?

Left and right is always determined as you are sitting in the vehicle it will be your left side or right side regardless of the vehicle being left hand drive or right hand drive

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

98754207
98754207501
98754207601
98754207503
98754207603
98754207604
98754207504

The product you are viewing cross references to these numbers
Window regulator. Porsche 997.2 Cabrio - 99754301505, 99754301605, 99754301507, 99754301501, 99754301502, 99754301602, 99754301607
3
Window regulator. Porsche 997.2 Cabrio
Special Order item
99754301
Product Information
Product Information
Window regulator.

porsche

Fits:
Porsche 997.2 Carrera 2009-12 Cabrio
Not for Speedster

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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

99754301
99754301505
99754301605
99754301507
99754301501
99754301502
99754301602
99754301607

The product you are viewing cross references to these numbers
DISPLAYING 1 to 5 (of 5 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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