Shock Absorber Parts REAR

Shock absorber bump stop. Rear axle.
This Rear Shock Absorber Bump Stop is an OE-style rear suspension damping component designed for Porsche 991 models equipped with PASM (Porsche Active Suspension Management). It cushions suspension movement at full compression and protects the rear shock absorber assembly from excessive impact loads.
Sold individually, 2 required -  fits left or right suspension strut

Fits:
For cars with PASM
Porsche 991.1 Carrera 2012 - 2016
Porsche 991.2 Carrera 2017 - 2019
Porsche 991 Turbo 2014 -2021

Diagram ref no 8

This OE match rear shock absorber bump stop is a direct replacement for the original Porsche suspension component fitted to Porsche 991 Carrera, Carrera S, Turbo, Turbo S, and related PASM-equipped variants. Manufactured to OE specifications, it is designed to provide progressive suspension cushioning while preserving factory ride quality and handling characteristics.

Installed on the rear shock absorber shaft beneath the dust cover, the bump stop acts as a secondary suspension cushion during heavy suspension compression. When the suspension reaches near full travel under hard cornering, braking, uneven road surfaces, or pothole impacts, the bump stop absorbs excess force before the suspension reaches its mechanical limit. This helps prevent metal-to-metal contact and protects the shock absorber, mounts, and chassis from damage.

Function
•  Cushions rear suspension at full compression
•  Protects rear shock absorbers from impact damage
•  Prevents metal-to-metal suspension contact
•  Helps maintain stable ride comfort and handling
•  Reduces stress on suspension mounts and chassis

Over time, bump stops can deteriorate due to repeated compression, ageing, heat exposure, and moisture. A damaged or collapsed bump stop may reduce suspension protection, increase harsh impacts, and accelerate wear on shock absorbers and mounting components. Replacing worn bump stops restores suspension cushioning, ride comfort, and proper damper protection.

When to replace
•  Cracked, compressed, or deteriorated bump stop material
•  Harsh rear suspension impacts or bottoming-out
•  During rear shock absorber replacement
•  Increased suspension noise or vibration
•  Preventative maintenance on higher-mileage vehicles

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Related, superseded, cross reference or alternative numbers for comparison.

99133310502

The product you are viewing cross references to these numbers

Shock absorber concave washer. Lower.



Fits:
Porsche 997.1 C2 / C2S 2005-08 (I029 / I475)
Porsche 997.1 C4 / C4S 2005-08 (I029 / I475)
Porsche 997.1 Turbo 2007-09
Porsche 997.2 C2 / C2S 2009-12 (I475)
Porsche 997.2 C4 / C4S 2009-12
Porsche 991.1 Carrera 2012-16 (I029 / I352 / I475 / I477)
Porsche 991.2 Carrera 2017-18 (I352 / I475 / I477)

***
(I029) For cars with Standard chassis
(I475) For cars with PASM Electronic damper control
(I352) For cars with Electronic damper control for PASM and PDCC
(I477) For cars with PASM w/o lowering


Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

99733351300

The product you are viewing cross references to these numbers

Shock absorber concave washer. Lower.



Fits:
Porsche 997.1 C2 / C2S 2005-08 (I029 / I475)
Porsche 997.1 C4 / C4S 2005-08 (I029 / I475)
Porsche 997.1 Turbo 2007-09
Porsche 997.2 C2 / C2S 2009-12 (I475)
Porsche 997.2 C4 / C4S 2009-12
Porsche 991.1 Carrera 2012-16 (I029 / I352 / I475 / I477)
Porsche 991.2 Carrera 2017-18 (I352 / I475 / I477)

***
(I029) For cars with Standard chassis
(I475) For cars with PASM Electronic damper control
(I352) For cars with Electronic damper control for PASM and PDCC
(I477) For cars with PASM w/o lowering


Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

99733351300

The product you are viewing cross references to these numbers