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- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Restore smooth, reliable power window operation on your Porsche 911, 964 or 993 with these full regulator + motor assemblies.
Fits:
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Diagram Ref No 1 And 2
What This Product Does:
- The window regulator part lifts and lowers the window glass inside the door. The motor drives this mechanism when you press the window switch.
- When working, the assembly ensures the glass travels smoothly up and down, stays aligned, seals properly against the weather strip, and does not creak, jam or drop.
- A combined motor + regulator unit means proper integration of the gear-train, mounting points, guides/tracks, and wiring — all designed to match original vehicle spec.
Symptoms & Signs You Might Need Replacement:
- The window won’t move when you press the switch (the motor might spin or click but glass doesn’t move).
- The window moves slowly, jerks, binds or stops part-way up/down.
- You hear grinding, clicking, or scraping noises from inside the door when operating the window.
- The window appears crooked, tilts, drops into the door, or doesn’t seal properly when fully raised.
- The motor appears to work but the mechanism is worn (e.g., cable slipped), meaning you may as well replace regulator + motor.
- During door panel removal for other repairs, the old mechanism shows visible wear, rust or broken components — replacing the full assembly is often wise.
Why Replacement Matters:
- Restores proper operation of your power windows — a vital convenience, weather-seal and security function in a vehicle.
- Prevents further damage: A failing regulator or motor can harm the window glass, tracks, seals or wiring — replacing early avoids larger expense.
- Cost-effective: Replacing the full unit (regulator + motor) ensures compatibility and avoids future failure of a component you didn’t address.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91154293
The product you are viewing cross references to these numbers
- 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 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
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
- 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 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
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
- 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 1987-1989 3.2L G50
Fits:
Porsche 911 Targa 2.7-3.3 08/73-07/89
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91154200
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 / 912 1965-69
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG54204122
The product you are viewing cross references to these numbers