Supporting rear suspension top mount. Porsche 996  ❭  99633305903

Supporting rear suspension top mount.
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Related, superseded, cross reference or alternative numbers for comparison.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

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