- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
Porsche Hydraulic Drive Cylinder Cabriolet Roof | Reliable Roof Operation & Precision Engineering - Fits left and right hand side
The Hydraulic Drive Cylinder for Porsche 996 and 997 Cabriolet models is a crucial component in the convertible roof mechanism. It powers the smooth, synchronized opening and closing of your Porsche’s soft-top system, ensuring fluid motion and quiet operation every time you retract or raise the roof.
Porsche 996 C2 Cabriolet 3.4L 1997-08/01
Porsche 996 C4 Cabriolet 3.4L 1997-08/01
Porsche 996 C2 Cabriolet 3.6L 09/01-2005
Porsche 996 C4 Cabriolet 3.6L 09/01-2005
Porsche 996 C4S Cabriolet 3.6L 09/01-2005
Porsche 996 TURBO Cabriolet 2000-05
Porsche 997 MK1 Carrera Cabriolet 2 3.6L 2005-08
Porsche 997 MK1 Carrera 2S Cabriolet 3.8L 2005-08
Porsche 997 MK1 Carrera 4 Cabriolet 3.6L 2005-08
Porsche 997 MK1 Carrera 4S Cabriolet 3.8L 2005-08
Porsche 997 MK1 TURBO Cabriolet 2007-09
Porsche 997 MKII Carrera C2 Cabriolet 3.6L 2009-12
Porsche 997 MKII Carrera C4 Cabriolet 3.6L 2009-12
Porsche 997 MKII Carrera C2S Cabriolet 3.8L 2009-12
Porsche 997 MKII Carrera C4S Cabriolet 3.8L 2009-12
Porsche 997 MKII Turbo Cabriolet 2010-13
Diagram ref no 12
At Design911, we supply high-quality hydraulic cylinders manufactured using advanced materials and precision seals, these cylinders are designed to withstand the hydraulic pressures and temperature variations encountered in everyday use.
Whether you’re restoring a Cabriolet roof system or replacing a leaking unit, this part ensures dependable operation and preserves your Porsche’s refined driving experience.
What Does a Hydraulic Drive Cylinder Do?
The hydraulic drive cylinder is responsible for powering the motion of your Porsche Cabriolet roof through hydraulic pressure.
Core Functions:
- Converts hydraulic fluid pressure into mechanical movement to raise or lower the roof.
- Ensures smooth, balanced motion between both roof sides.
- Maintains alignment and tension of the roof mechanism.
- Works in tandem with pumps, lines, and valves for seamless operation.
Without a functioning cylinder, the roof system cannot move properly, often resulting in uneven motion or complete failure.
Why Do Hydraulic Cylinders Fail or Leak?
Over time, wear, heat, and hydraulic pressure take their toll on the seals and internal components.
Common Causes of Failure Include:
- Hydraulic fluid leaks from worn or cracked seals.
- Contamination or debris damaging the internal piston.
- Age-related degradation of rubber components.
- Air ingress into the hydraulic system causing pressure loss.
- Corrosion or mechanical damage from extended use or storage.
When a cylinder fails, symptoms can include slow or jerky roof operation, fluid leaks in the rear compartment, or complete hydraulic system failure.
Why Replace Your Porsche Hydraulic Drive Cylinder?
Replacing your hydraulic drive cylinder restores full convertible roof functionality and protects the entire hydraulic system from strain or damage.
Key Benefits:
- Restores smooth, reliable Cabriolet roof operation.
- Prevents hydraulic leaks and loss of pressure.
- Protects pumps and lines from premature wear.
- Precision-engineered for Porsche 996 and 997 fitment.
- Manufactured using high-grade seals and corrosion-resistant materials.
- Designed to perform under high hydraulic load and temperature variation.
Replacing worn hydraulic cylinders ensures your roof operates as intended — with quiet, consistent, and leak-free performance.
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- 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)
- 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
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Size: 4.2mm x 16mm
Finish: Chrome Plated Stainless Steel
Fits:
Porsche 993 (1989-1998) CABRIO
Will also work for all 356 and early 911 models as well.
Please note:
Will work perfectly with :
- Chrome Cap, part number SMC000949 and
- Brass Cap, part number SMC001949
This is the same as part number 99959159702/2, but longer.
Click 'Zoom in' for large parts diagram.
Diagram ref no 35
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- 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
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 964 1989-94
Porsche 993 1995-98
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Diagram ref no 1A
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- Porsche 356B 1959-63
- Porsche 356C 1963-65
Available in 0.5 mm / 1.0 mm / 2.0 mm.
Fits:
Porsche 356 B / 356 C
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