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- 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 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 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 GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Shock absorber additional springs code 99733310501 with shock absorber bellows code 99333310701. fits the FRONT cars with sport shock I475 / I030
This package includes 2 x additional spring & 2 shock absorbers cover bellows
This is for the shock absorber as an additional spring, also known as a bump stop, stopper or helper spring, designed for the front strut assemblies on Porsche 997 models equipped with the PASM electronic damper control (with sport shock I475 / I030).
Fits:
- · Porsche 997 Carrera 2 3.6L 2005>>
- · Porsche 997 Carrera 2S 3.8L 2005>>
- · Porsche 997 Carrera 4 3.6L 2005>>
- · Porsche 997 Carrera 4S 3.8L 2005>>
- · Porsche 997 TURBO 2007>>
- · Porsche 997 GT3 2007>>
- · Porsche 997 GT2 2007>>
- · Porsche 997 MKII Carrera C2 3.6L 2009>>
- · Porsche 997 MKII Carrera C4 3.6L 2009>>
- · Porsche 997 MKII Carrera C2S 3.8L 2009>>
- · Porsche 997 MKII Carrera C4S 3.8L 2009>>
- · Porsche 997 MKII GT3 2010>>
- · Porsche 997 MKII Turbo 2009>>
- · Porsche 997 MKII GT2 RS 2011>>
This acts as a progressive load-bearing element, cushioning the suspension when the strut nears full compression. It helps prevent harsh bottoming-out, protecting both the strut and chassis from damage during aggressive driving or over bumps. These components maintain ride quality and handling performance, especially under heavy loading or spirited cornering, keeping the suspension linear and controlled.
Common Issues & Considerations Wear or Deterioration: Over time, the rubber can compress, crack, or lose elasticity, diminishing its effectiveness. This can lead to harsher suspension impacts at full compression. Noise or Harsh Feedback: A worn or hardened bump stop can transmit noise or impacts through the cabin, particularly over rough roads or speed bumps. Sport vs. Standard Suspension: These parts are specific to Sport chassis models. Non-sport setups may not have the same bump stops or use different part numbers, so swapping or replacing must be done accordingly.
Click 'Zoom in' for large parts diagram.
Diagram ref no 7 & 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99733310501
The product you are viewing cross references to these numbers
- 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 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
This rear upper shock/strut mount designed for the rear suspension of the Porsche 911 (996) series (1998-2005). This mount positions the rear shock absorber and provides a secure interface between the suspension unit and the chassis. Built to original dimensions and quality standards, it reduces road noise, ensures proper shock alignment and preserves the smooth Porsche ride you expect.
Sold each, 2 required per vehicle.
Fits:
Porsche 996 C2 / C4 / C4S 1998 - 2005
Porsche 996 Turbo / GT2 2001 - 2005
Porsche 996 GT3 MKI
Diagram ref no 2
• Position on Vehicle: Rear suspension – upper mount for the shock absorber / strut (left or right side).
• Cross-Reference / Alternative Numbers: OEM part number 996 333 059 03 (often written 99633305903)
• Applications: Replacement mount for the rear suspension of 996-series Porsche vehicles; used when original mount shows wear, deformation or poor isolation.
The rear shock/strut mount plays a pivotal role in aligning your suspension and isolating vibration. Over time the bonded rubber can deteriorate, the mount flange may corrode, or studs may loosen — all affecting ride comfort and handling. A worn mount can transmit noise and harshness, alter suspension geometry and ultimately compromise stability. In short, replacing a deteriorated mount restores quiet cabin performance and secure handling.
When to replace:
• Noticeable noise, clunks or creaks from the rear suspension.
• Visible cracks in the rubber isolator or separation at the bond.
• Poor ride comfort, increased vibration or harshness.
• Aftershock/strut replacement – when disassembly makes future replacement easier.
• High-mileage or original mount still in service after many years.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99633305903
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- 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 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 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
Fits:
Porsche 993 C2 / C4 / C2S / C4S 1994-98
Porsche 996 C2 / C4 / C4S 1998-05
Porsche 996 Turbo 2001-05
Porsche 997 MKI C2/C2S 2005-08
Porsche 997 Turbo / GT3 2007>>
Porsche 997 MKII 2009>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99333310701
The product you are viewing cross references to these numbers
- 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 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
Fits:
Porsche 996 1998-05
Porsche 996 Turbo / GT2 2001-05
Porsche 996 GT3 1999-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99633310700
The product you are viewing cross references to these numbers