Brake support mounting plate. Porsche 911 1974-89  ❭  91135208130

Brake support mounting plate. Rear axle
This is a Genuine Porsche rear brake support mounting plate manufactured to original factory specifications for Porsche 911 models from 1974 to 1989. This OEM component provides the correct structural mounting point for the rear brake caliper, ensuring precise alignment with the brake disc and stable operation under braking loads.


Porsche 911 1974 - 1989

Diagram ref no. 15

The brake support mounting plate anchors the rear brake caliper in the correct position and resists the forces generated during braking. Its structural integrity is essential for consistent braking response, even pad wear, and stable caliper operation, particularly under repeated or heavy braking.

Over time, original brake support plates can suffer from corrosion, fatigue, or deformation due to heat, moisture, and mechanical stress. Any loss of rigidity or alignment can affect braking consistency and safety. Replacing a worn or damaged plate with a Genuine Porsche component restores factory-level fitment, strength, and confidence in the braking system - especially important for classic and restored vehicles.

When to replace. Replace the brake support mounting plate when:
•  The original plate shows rust, cracking, or deformation
•  Rear brake calipers no longer sit squarely over the disc
•  Mounting holes are worn or elongated
•  You are performing a full rear brake or suspension restoration
•  Maintaining OEM originality is a priority

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Related, superseded, cross reference or alternative numbers for comparison.

91135208130

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