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Porsche > 914 (1970-1976) > Electrical & Relays >

Window Mechanism

Window Mechanism

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Electric window regulator repair kit. Porsche 914 /924S / 944 / 968 - 1096, 94453704200, 94453704100, 477837391C, 477837392C
1
Electric window regulator repair kit. Porsche 914 /924S / 944 / 968
1096
Product Information
Product Information
Power window cross arm repair kit. Set of 3 rollers.

nordschleife

Fits:
Porsche 914
Porsche 924S
Porsche 944 (also S, S2 and turbo)
Porsche 968

Old electric windows become sluggish and sometimes stutter. This is often due to the worn roles that are clipped on the ends of the cross arms. They are worn, partly stuck and then no longer roll off at the lower edge of the pane. Partly the roles are also completely broken off. They are not individually available at Porsche and so there was no alternative than to look for a slightly better, used and still expensive windows.

With this set of three rollers and a teflon-containing (= PTFE) lubricant can be a window lifter (left or right) renew. The rollers are made of a durable thermoplastic material.

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Related, superseded, cross reference or alternative numbers for comparison.

1096
1096
94453704200
94453704100
477837391C
477837392C

The product you are viewing cross references to these numbers
Window lifter, front. Porsche 914 69-72 - 91454204110, 91454204210, 1688100770, 1688100780
2
Window lifter, front. Porsche 914 69-72
91454204
Product Information
Product Information
Window lifter, front.

dansk

Fits:
Porsche 914 1.7L-2.0L 01/1969-07/1972

Click 'Zoom in' for large parts diagram.
Diagram ref no 41

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Related, superseded, cross reference or alternative numbers for comparison.

91454204
91454204110
91454204210
1688100770
1688100780

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 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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