Window Mechanism

Electric window lifter without motor.

Fits:
Porsche 911 Targa 2.7-3.3 08/73-07/89

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91154200

The product you are viewing cross references to these numbers

Electric Window Regulator (with electric motor). 

Fits:
Porsche 911 1975-86 Coupe



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91154293

The product you are viewing cross references to these numbers

Electric Window Regulator (without electric motor). 

Fits:
Porsche 911 1975-86 Coupe



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91154293

The product you are viewing cross references to these numbers

Stop Plate For Window Regulator, Upper. 

Fits:
Porsche 911 1978>>1983

Diagram Ref No 27

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91154294

The product you are viewing cross references to these numbers

Window lifter rail. Cross arm window lift.

Fits:
Porsche 911 1980-89 Coupe
Porsche 964 1989-94 Coupe
Porsche 993 1994-98 Coupe

Click 'zoom in' for large parts diagram.
Diagram ref no 16.

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Related, superseded, cross reference or alternative numbers for comparison.

91154205

The product you are viewing cross references to these numbers

Window lifter rail. Cross arm window lift.

Fits:
Porsche 911 2.0-3.3 01/63-07/89 Coupe
Porsche 964 3.3-3.6 12/88-06/94 Coupe
Porsche 993 3.6-3.8 10/93-09/97 Coupe

Diagram ref no 16.

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Related, superseded, cross reference or alternative numbers for comparison.

91154205

The product you are viewing cross references to these numbers

Window Lifter Rail. Cross arm window lift

Fits:
Porsche 911 1980-89 Cabrio / Targa
Porsche 964 1989-94 Cabrio / Targa

Left or right

Click 'zoom in' for large parts diagram.
Diagram ref no 16.

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91154205

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Window Lifter Rail, Cross Arm Window Lift.
Restore smooth and reliable window operation with this OE Match Window Lifter Rail, Cross Arm Window Lift, manufactured as a direct replacement. Produced to OE-style specifications, this window lifter rail forms an integral part of the cross arm window regulator assembly, guiding the window glass through its full range of movement while maintaining correct alignment and stability.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1979 3.0L / SC
• Porsche 911 1975-1977 3.0L Turbo (930)  

Diagram Ref No 21

Over time, the original window lifter rail can become worn, bent, corroded, or damaged through continual operation and age. Excessive wear can result in stiff window movement, poor glass alignment, excessive play, or complete regulator failure. Replacing a worn or damaged lifter rail restores smooth window operation and helps maintain the correct positioning of the door glass. This OE Match window lifter rail is ideal for routine maintenance, door repairs, and Porsche restoration projects.  

What This Product Does:

• Guides the movement of the door window glass.
• Supports the cross arm window regulator assembly.
• Maintains correct window alignment during operation.
• Helps ensure smooth raising and lowering of the window.
• Reduces unwanted movement within the regulator mechanism.
• Replaces bent, worn, or damaged original lifter rails.
• Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:

• Window difficult to raise or lower.
• Window glass tilting or becoming misaligned.
• Excessive play within the window mechanism.
• Grinding or binding during window operation.
• Bent or corroded lifter rail.
• Window regulator no longer operating smoothly.
• Door restoration requiring replacement window regulator components.

Why Replacement Matters:

• The window lifter rail is a key component of the cross arm window regulator, providing the guidance and support needed for smooth, controlled movement of the door glass. A worn, bent, or damaged rail can cause poor window alignment, increased strain on the regulator, and unreliable operation, potentially leading to further damage within the window mechanism.
• Replacing a faulty lifter rail restores smooth window movement, maintains correct glass alignment, and helps extend the service life of the complete regulator assembly. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Window Lifter Rail provides the correct fit, reliable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.

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

90154204

The product you are viewing cross references to these numbers

Window Lifter Rail. Cross arm window lift.

Fits:
Porsche 911 1965-79 Cabrio / Targa

Diagram ref no 21

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90154204

The product you are viewing cross references to these numbers

Window Lifter Rail, Cross Arm Window Lift.
The OE MATCH Window Lifter Rail, Cross Arm Window Lift is a replacement component designed to restore smooth, reliable and correctly aligned door window operation on classic Porsche 911 Coupe models manufactured between 1965 and 1979.  

Fits:

• Porsche 911 1965-79 Coupe

Diagram Ref No 16

Manufactured to match the original equipment specifications, this window lifter rail forms an important part of the cross-arm window regulator assembly, providing the guiding and supporting surface required for the door glass to move correctly when raised or lowered.

The cross-arm window lifting mechanism uses a system of pivoting arms and guide rails to control window movement. As the window regulator operates, the lifting arms move through their designated travel, transferring movement to the window glass through the associated guide rail.

The window lifter rail helps maintain the correct relationship between the regulator mechanism and the window glass, supporting smooth movement, stable positioning and consistent operation.

Over time, original window lifter rails can become worn, bent, corroded or damaged due to repeated window operation, ageing, moisture and mechanical stress. A damaged rail may cause the window to become difficult to operate, move unevenly, rattle or fail to close correctly.

Replacing a worn or damaged window lifter rail with an OE MATCH component helps restore the original lifting mechanism, improve window glass alignment and reduce unnecessary strain on the regulator assembly.

Available in separate left-hand and right-hand versions, the OE MATCH Window Lifter Rail is ideal for classic Porsche window mechanism repairs, door refurbishment and complete restoration projects.

What This Product Does:
The window lifter rail is an important mechanical component within the cross-arm window regulator assembly.

Its primary functions include:

• Guides Window Movement: Provides a guiding track for the cross-arm regulator mechanism as the window is raised or lowered.
• Supports the Window Glass: Helps transfer lifting and lowering movement from the regulator arms to the door glass.
• Maintains Correct Glass Alignment: Supports consistent positioning of the window during its vertical movement.
• Distributes Lifting Forces: Helps transfer operating forces evenly through the window lifting mechanism.
• Supports Smooth Window Operation: Provides the intended guide surface for the moving regulator components.
• Reduces Unwanted Movement: Helps minimise excessive play or instability within the lifting assembly.
• Prevents Window Tilting: Supports the correct relationship between the window glass and regulator mechanism, reducing the risk of uneven movement.
• Protects Associated Components: Helps reduce unnecessary stress on regulator arms, rollers and connected mounting components.
• Supports Proper Window Closure: Helps the window reach its intended position within the surrounding glass guides and seals.
• Maintains Original Equipment Functionality: Replaces the factory guide rail while preserving the original cross-arm window lifting arrangement.

Symptoms Of Wear Or Failure:
Window lifter rails are exposed to repeated mechanical movement, vibration, moisture and environmental contamination throughout their service life.

Over time, the rail may become distorted, corroded or worn, affecting its ability to guide and support the window regulator correctly.

Common symptoms of a worn or failing window lifter rail include:

• Stiff or Difficult Window Operation: The window becomes harder to raise or lower due to increased friction or resistance within the regulator mechanism.
• Uneven Window Movement: The glass may tilt or move inconsistently as the regulator operates.
• Window Binding or Jamming: A bent or damaged rail may prevent the regulator arms or rollers from moving freely.
• Rattling Inside the Door: Excessive play or damaged rail mounting points may cause noises during driving or window operation.
• Loose or Unstable Window Glass: The glass may move excessively due to deterioration within the lifting mechanism.
• Visible Rail Corrosion: Rust or surface deterioration may interfere with smooth regulator movement.
• Bent or Distorted Rail: Physical deformation may prevent the regulator from following its intended travel path.
• Worn Guide Surfaces: Repeated movement may wear the rail's contact surfaces, creating excessive clearance.
• Grinding or Scraping Noises: Damaged guide surfaces or misaligned regulator components may produce unusual sounds when operating the window.
• Window Not Closing Correctly: The glass may fail to reach its intended fully raised position.
• Window Dropping or Slipping: Severe damage to the rail or its associated connections may allow the glass to move unexpectedly.
• Damaged Mounting Points: Cracked, loose or distorted attachments may prevent the rail from remaining securely positioned.
• Excessive Window Winder Effort: Additional resistance in the mechanism may make the manual window handle harder to turn.
• Damage Following Door Repairs: Previous window glass removal, incorrect installation or accidental impact may cause rail misalignment.

Why Replacement Matters:
Replacing a worn, bent or damaged window lifter rail is important for restoring reliable window operation, maintaining correct glass alignment and protecting the associated regulator mechanism.

Key Benefits of Replacement:

• Restores Smooth Window Movement: Provides a correctly shaped guide surface for consistent raising and lowering of the window.
• Improves Window Glass Alignment: Helps prevent uneven movement, tilting and binding.
• Reduces Window Rattling: Helps eliminate unwanted movement caused by a damaged or loose rail.
• Supports Reliable Window Closure: Allows the regulator to guide the glass towards its intended fully closed position.
• Reduces Regulator Strain: Helps prevent additional mechanical stress caused by resistance or misalignment.
• Protects Window Regulator Components: Reduces unnecessary wear on lifting arms, rollers and mounting hardware.
• Helps Prevent Further Damage: Replacing a defective guide rail can reduce the risk of damage to other window mechanism components.
• Maintains Original Equipment-Style Fitment: Designed to match the factory cross-arm window lifting assembly.
• Restores Correct Lifting Geometry: Helps maintain the intended movement and positioning of the regulator arms.
• Supports Window Seal Contact: Correct glass alignment helps the window meet its surrounding seals as intended.
• Ideal for Door Restoration: Suitable when refurbishing classic Porsche door mechanisms.
• Cost-Effective Window Repair: Allows the damaged rail to be replaced without necessarily renewing the complete regulator.
• Supports Long-Term Reliability: Helps maintain dependable operation through repeated window use.
• Preserves Classic Porsche Originality: Retains the original-style mechanical window lifting arrangement.

A damaged window lifter rail may initially cause minor stiffness or irregular glass movement. However, continued operation can place additional strain on the window regulator arms, rollers and associated mounting components.

If the window becomes severely misaligned or jammed, excessive force applied to the winding mechanism may cause further damage.

Replacing the defective rail with an OE MATCH component helps restore smooth operation while reducing the risk of further wear within the door window mechanism.

Correct window alignment also contributes to improved sealing around the door glass, helping reduce unwanted wind noise and water ingress associated with poor window positioning.

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

90154204

The product you are viewing cross references to these numbers

Window Lifter Rail. Cross arm window lift.

Fits:
Porsche 911 1969-79 Coupe

Click 'zoom in' for large parts diagram.
Diagram ref no 16.

Related reference numbers
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90154204

The product you are viewing cross references to these numbers

Window lifter rail.

Fits:
Porsche 911 1965-68 OUPE
From chassis numbers:
030 2921 >>
035 1599 >>
045 3638 >>

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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90154204

The product you are viewing cross references to these numbers

Window Regulator - for manual windows

Fits:
Porsche 911 / 912 - 1965 to 1967
Does not fit 1968 models

Diagram ref no 1

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90154204

The product you are viewing cross references to these numbers

Window Regulator - Right side only - Please note Left side is now discontinued.

Fits:
For cars with MANUAL window winder.
Porsche 911/912 1965-68

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

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90154204222

The product you are viewing cross references to these numbers

Window regulator with parallel arms for manual wind. 

Fits:
Porsche 911 - 1969 to 1977

Section of diagram ref no 1

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91154204

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