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Porsche
The Porsche Genuine OE Rubber Stop (Part No. 90134330100) is an original factory bump stop (buffer) designed for the front shock absorber / strut assembly on classic Porsche models. It is a small but essential suspension component made from durable rubber, engineered to absorb impact at the limits of suspension travel.
Also commonly referred to as a shock absorber bump stop, strut stop, or suspension buffer, this part is supplied individually and fits both left and right sides.
Fits:
Porsche 911 1965 - 1970 (Excluding 911E)
Porsche 911 1971 - 1983 (Excluding Turbo)
Porsche 911 1984 - 1989 Turbo-Look & Super Sport only
Porsche 914 1970 - 1976
Diagram ref no 3
The rubber stop is positioned on the shock absorber shaft and acts as a cushion when the suspension reaches full compression. It prevents metal-to-metal contact within the strut assembly and protects critical suspension components from damage.
In practical terms, it “catches the strut when it bottoms out”, reducing impact forces and helping preserve ride comfort and component longevity.
Functions & Technical Role
• Impact absorption: Cushions suspension at full compression
• Component protection: Prevents damage to shocks and mounting points
• Ride quality support: Reduces harsh bottoming-out effects
• Suspension control: Maintains correct travel limits
• OEM durability: Designed to withstand repeated compression and ageing
Over time, rubber bump stops can harden, crack, or disintegrate, especially on older vehicles. A worn or missing stop can lead to:
• Harsh suspension bottoming
• Damage to shock absorbers and mounts
• Increased vibration and noise
• Reduced ride comfort
Replacing with a genuine Porsche OE bump stop restores proper suspension protection and maintains the original driving characteristics.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134330100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 914 (1970-1976)
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