Rear shock mount washer. Porsche 997 / 991 / 918 Spyder  ❭  WHT008575

Rear shock mount washer, 12,5 x 19,1 x 3
This OE Match rear shock mount washer is a direct replacement for the original Porsche suspension mounting washer fitted to selected Porsche 997, 991, and 918 Spyder models. It forms part of the rear shock absorber mounting assembly and helps distribute load evenly across the suspension top mount and supporting components.
Sold individually, 2 required per vehicle

Fits:
Porsche 997.1 2005 - 2008 All models
Porsche 997.2 2009 - 2012 All models
Porsche 991.1 2012 - 2016 All models
Porsche 991.2 2017 - 2019 All models
Porsche 918 Spyder 2015

Diagram ref no 10

Installed within the rear suspension strut mounting assembly, the washer sits between the shock absorber mount and associated suspension hardware. It helps spread mounting loads evenly across the shock absorber top mount, reducing stress concentration on suspension components while supporting correct alignment and secure fastening of the rear suspension system

This washer is commonly replaced during rear shock absorber servicing, suspension rebuilds, or top mount replacement work. Over time, mounting hardware can become worn, distorted, or corroded due to repeated suspension load cycles and environmental exposure. Replacing worn suspension washers helps maintain correct mounting integrity and ensures proper operation of the rear suspension assembly.

The washer is also referenced under previous Porsche part number 99902527102

The rear shock mount washer distributes suspension mounting load across the shock absorber top mount assembly, helping maintain secure suspension fastening, correct alignment, and stable suspension operation.

Function
•  Supports rear shock absorber mounting assembly
•  Distributes suspension load evenly across mounting surfaces
•  Helps maintain secure shock absorber fastening
•  Reduces stress on suspension mounting components
•  Supports stable rear suspension operation and alignment

Suspension mounting hardware is subjected to constant load, vibration, and road impact. Over time, washers can become distorted, fatigued, or corroded, potentially affecting suspension mounting integrity and alignment. Replacing worn suspension washers during shock absorber or top mount servicing helps ensure secure assembly and reliable suspension performance.

When to replace
•  During rear shock absorber replacement
•  During suspension top mount servicing
•  Corroded or damaged mounting hardware
•  Suspension overhaul or refurbishment
•  Preventative maintenance during suspension rebuilds

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