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.jpg?width=440&height=320 "Hydraulic drive cylinder cabriolet roof. Porsche 996 / 997 - 99756194502, 99756194501, 99756194500, 99656194502 - URO-016670")
- 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
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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99756194502
The product you are viewing cross references to these numbers
.jpg?width=197 "Fillister head screw 3,5 x 12. Porsche 987 Boxster / 970 Panamera - 99991923901")
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 Executive 2014-16
Fits:
Porsche 987.1 Boxster - 2005 to 2008
Porsche 987.2 Boxster - 2009 to 2012
Porsche 970.1 / 970.2 Panamera turbo - 2009 to 2016
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99991923901
The product you are viewing cross references to these numbers