Window Lifters | Motors

Electric Window Motor, 8 TEETH COG.
Restore smooth and reliable window operation with this OE Match Electric Window Motor with 8-Tooth Cog, manufactured as a direct replacement. Produced to OE-style specifications, this electric window motor provides the power required to raise and lower the door glass, ensuring consistent operation and correct engagement with the window regulator mechanism.

Fits:

• 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 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1975-1977 3.0L Turbo (930)  

Over time, electric window motors are subjected to continual use, vibration, moisture, and electrical wear. Internal motor components can weaken, while the drive gear and bearings may wear, resulting in slow, erratic, or complete loss of window movement. Replacing a faulty window motor restores dependable operation and helps prevent additional strain on the window regulator assembly. This OE Match component is ideal for routine maintenance, electrical repairs, and Porsche restoration projects.  

What This Product Does:

• Powers the raising and lowering of the door window.
• Drives the window regulator via the 8-tooth drive cog.
• Provides smooth and consistent window movement.
• Helps maintain reliable operation of the electric window system.
• Replaces worn, seized, or failed original window motors.
• Reduces strain on the window regulator mechanism.
• Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:

• Electric window operates slowly.
• Window stops part way through its travel.
• Window fails to move despite switch operation.
• Grinding or clicking noises from inside the door.
• Intermittent window operation.
• Motor runs without moving the window.
• Excessive play or wear in the drive cog.
• Complete failure of the electric window motor.

Why Replacement Matters:

• The electric window motor is responsible for converting electrical power into the mechanical movement needed to raise and lower the door glass. A worn or failed motor can leave the window stuck open or closed, place unnecessary strain on the regulator mechanism, and reduce the convenience and security of the vehicle.
• Replacing the window motor restores smooth, reliable window operation and helps protect associated regulator components from premature wear. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match electric window motor with an 8-tooth cog provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, electrical repairs, and restoration projects.

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

91162401

The product you are viewing cross references to these numbers

Electric Window Regulator (with electric motor). 

Fits:
Porsche 911 1975-86 Coupe



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

91154293

The product you are viewing cross references to these numbers

Electric Window Regulator (without electric motor). 

Fits:
Porsche 911 1975-86 Coupe



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

91154293

The product you are viewing cross references to these numbers

Window lifter rail rubber seal fits into the window lift rail.



Fits:
Porsche 911 1969-89 ALL
Porsche 964 1989-94 ALL
Porsche 993 1994-98 Coupe

Click 'zoom in' for large parts diagram.
Diagram ref no 15.

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

91154249140

The product you are viewing cross references to these numbers

Window lifter rail rubber seal fits into the window lift rail.
The window lift rail seal is an rubber strip designed to fit into the lower window lift rail, providing proper cushioning and grip for the door glass on Porsche 911, 964, and 993 Coupe models. It matches the original seal profile, hardness, and length to ensure smooth window operation and secure glass seating inside the lift channel.

Fits:
Porsche 911 1969 - 1989 ALL
Porsche 964 1989 - 1994 ALL
Porsche 993 1994 - 1998 Coupe

Diagram ref no 15.

The rubber sealing strip that sits inside the window lift rail (glass carrier channel). It grips the bottom edge of the door glass, ensuring the pane is securely held in place as the window regulator raises or lowers it.

This seal:
• Ensures the door glass is firmly clamped within the lift rail.
• Prevents rattling, vibration, or movement of the window during driving.
• Provides a cushioned interface between the metal rail and glass to prevent scratching or stress cracks.
• Helps maintain smooth and reliable window movement throughout the regulator’s travel.

Over time, the original window lift rail seal can harden, flatten, or crumble, causing the door glass to loosen inside the rail. This leads to rattling, uneven window movement, and even scratching or damage to the lower edge of the glass. Replacing the seal ensures the window is held firmly and quietly, restoring smooth operation and protecting both the regulator and the glass from premature wear.

Replace this seal if:
• The window moves inconsistently or tilts during operation.
• You hear rattling or vibration inside the door.
• The seal is visibly cracked, hardened, or missing sections.
• Glass shows scratches near the lower edge.
• You are replacing the regulator or restoring door internals.



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

91154249140

The product you are viewing cross references to these numbers

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

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 Coupe

Diagram ref no 16.

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

90154204

The product you are viewing cross references to these numbers

Electric window motor.  8 TEETH COG.



Fits:
Porsche 911 1973-87

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

91162401

The product you are viewing cross references to these numbers

Window regulator.
Manual winder mechanism.



Fits:
Porsche 911 1969-89 Coupe
Please Note: Early 911's (pre '80) might need newer type rail and rubber ply (square type)

Part numbers:
- Window Rail Left 91154205700
- Window Rail Right 91154205800
- Rubber ply 91154249140 (Left or Right)

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

9115429

The product you are viewing cross references to these numbers

Window regulator. Manual winder mechanism.
OE Match manual window regulator for Porsche 911 Coupe models from 1969 to 1989. Available for left and right side applications, this replacement regulator helps restore smooth manual window operation and correct door glass movement.

Fits:
Porsche 911 1969-89 Coupe
Please Note: Early 911's (pre '80) might need newer type rail and rubber ply (square type)

Part numbers:
- Window Rail Left 91154205700
- Window Rail Right 91154205800
- Rubber ply 91154249140 (Left or Right)

The window regulator raises and lowers the door glass when the window winder handle is operated. A correctly working regulator allows the glass to move smoothly within the window channels and helps maintain proper alignment inside the door.

Functions
• Replaces the manual window regulator
•  Available for left and right side applications
•  Raises and lowers the door glass manually
•  Supports smooth window winder operation
•  Helps maintain correct door glass alignment
•  Replaces worn, stiff, damaged, loose, or failed original regulators
•  OE Match replacement for Porsche 911 Coupe door window repair.

Why Replace This Part?
Manual window regulators can wear, bend, seize, strip, or become loose due to age, repeated use, lack of lubrication, worn guides, and door glass resistance. A faulty regulator may cause stiff winding, uneven glass movement, slipping, rattling, or failure of the window to raise or lower correctly. Replacing the regulator helps restore reliable manual window operation.

When to Replace This Part
•   The window is stiff, noisy, or difficult to wind
•   Door glass drops, slips, or does not stay in position
•   The window will not raise or lower correctly
•   The regulator mechanism is bent, worn, seized, or damaged
•   Door glass alignment or movement is poor
•   Door rebuild, glass service, or restoration work is being carried out
•   The vehicle is undergoing Porsche 911 Coupe interior or body restoration.

Where it fits on the car
This regulator fits inside the door shell on Porsche 911 Coupe models from 1969 to 1989. Left and right side versions are available depending on the door being repaired.

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

9115429

The product you are viewing cross references to these numbers