Window Regulator, Without Motor. Porsche 911 / 964 / 993 1988-98

Window Regulator, Without Motor.
Restore proper window operation on your Porsche 911, 964 or 993 with these direct-replacement regulators without motors.

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

What This Product Does:

• The window regulator is the mechanical mechanism inside the car door that raises and lowers the glass when you press the window switch. Without a functioning regulator, the glass may not move, may bind, or may drop.
• A “without motor” version means you get the regulator/mechanism portion – the gears, tracks/cables, guides – but you reuse or replace the motor separately.
• Having a correct regulator ensures the window travels smoothly, stays aligned, seals properly, and doesn’t sag or fall into the door.

Symptoms & Signs You Might Need Replacement:

• The window does not move up or down when you press the switch, yet you may hear the motor trying.
  
• The window moves slowly, jerks, gets stuck, or stops midway — indicating the regulator mechanism is worn, binding or damaged.
  
• Grinding, clicking or scraping noises when operating the window — the cable, track or gears inside the regulator may have failed.
  
• The glass appears crooked, tilts, drops inside the door or fails to stay up — regulator failure can cause misalignment.
  
  

Why Replacement Matters:

• Restores reliable window operation: A functioning regulator ensures you can raise/lower windows reliably for ventilation, weather protection, security.
  
• Prevents further damage: If regulator fails completely, the motor may overheat, or the glass could drop inside the door, causing damage to glass, tracks, or door internals.
  
• Cost-effective repair: Replacing the regulator mechanism is typically much cheaper than replacing the door glass, motor damage, or dealing with water/weather leaks because of a failed regulator.
  
• Ease of install: Because the motor is reused, you reduce cost and complexity of wiring/motor replacement; the significant difference lies in a fresh mechanical regulator.

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Related, superseded, cross reference or alternative numbers for comparison.

91154293

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