Window Regulator, With Motor. Porsche 911 / 964 / 993 1988-98

Window Regulator, With Motor.
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

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