Porsche 991 Rear Left/Right Suspension Arm — 991331151
For the Porsche 991, 991331151 is associated with the rear suspension support/side section, rather than the steering knuckle itself. The full OEM references are typically 99133115110 (left) and 99133115111 (right). Porsche’s parts pricing documentation identifies these as “side section” components.
OEM references
| Position | OEM number | Description |
|---|---|---|
| Rear Left / LH | 99133115110 | Rear suspension support / side section |
| Rear Right / RH | 99133115111 | Rear suspension support / side section |
Used-parts catalogues confirm 99133115110 as a genuine rear-left control-arm/wishbone-type component for the 991, while 99133115111 is the corresponding right-side reference.
Compatibility
- Porsche 911 991
- Rear suspension
- Carrera / Carrera 4 and related variants, depending on configuration
- Left and right versions are different
Important: The steering knuckle/wheel carrier is a separate component. For example, standard 991 rear knuckles are listed under references such as 991331111.xx (left) and 991331112.xx (right), with different versions for rear-axle steering and GTS/GT3 applications.
So if you’re selling a complete rear suspension assembly with steering knuckle + control arms, the exact part numbers should be listed individually and matched to the VIN.
Suggested listing title:
Porsche 911 991 Rear Left Right Suspension Support Control Arm 99133115110 99133115111 OEM
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