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Porsche > Suspension & Axle > Anti Roll Bar Bushes >

Front stabilizer bar bush 16mm. Porsche 911 74-77  ❭  91134379202

Front stabilizer bar bush 16mm. Porsche 911 74-77 - 91134379202 - 1640600400
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Product Information
Product Information
Front Stabilizer Bar Mounting Bushing / Sway Bar Bushing
Size: 16mm
This Stabilizer bar bushing is designed to replace the original 16 mm anti-roll bar mount bush used in Porsche 911 models (1974–1977) models. It secures the stabilizer bar to the chassis, allowing proper flex while isolating vibration and lateral movement.
Sold each, 4 required.

Fits:
Porsche 911 1974 - 1977

Diagram ref no 23

•  Inner Diameter: 16 mm (fits 16 mm sway bar)
•  Function: Supports and isolates anti-roll bar from chassis while allowing movement
•  Position: Front suspension — stabilizer bar mounting location
•  Symptoms of wear: Squeaking, sway bar movement, body roll, looseness or play in suspension
•  Benefits: OEM-like material and fit, quieter ride, preserved bar function, durability
•  Installation: Fit over the bar, seat in bracket cradle, use correct clamps or straps

Over time, stabilizer (sway) bar bushings endure constant twisting, compression, and exposure to heat, oil, and road contaminants. The rubber material gradually hardens, cracks, or deforms, reducing its ability to isolate movement and maintain bar tension.

When this happens, the stabilizer bar can shift or rattle inside the mount, leading to poor handling balance and unwanted suspension noise.

Replace this bushing when:
•  You notice clunking, squeaking, or knocking noises over bumps or during cornering
•  The car feels less stable in turns or exhibits excessive body roll
•  There are visible cracks, tears, or looseness in the rubber mount
•  Performing suspension or sway bar service, or during a front-end restoration

Installing fresh bushings restores the correct preload and isolation in the stabilizer system — reducing body roll, eliminating noise, and bringing back that original Porsche steering precision and confidence.

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Related, superseded, cross reference or alternative numbers for comparison.

91134379202
91134379202

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Anti-Roll Bars (ARB’s) play an important role in a vehicle’s suspension system, helping to reduce body roll by transferring cornering load from one side of a vehicle to the other.

Often mounted to the vehicle’s chassis with rubber bushes, these bushes ensure the bar works as intended. To prevent the anti-roll bar from moving laterally within its mounts when turning, OE manufacturers will either bond the bushes to the bar, add dead-stops to the bar itself, or rely solely on the clamping pressure of the rubber.

But what happens when those bushes wear and need to be replaced? Often anti-roll bars with bonded bushes come as a costly complete assembly, so the alternative is to fit a more cost-effective unbonded polyurethane replacement, like the many we offer.

In most cases, friction from the bush will prevent any side-to-side bar movement. Still, when turning aggressively or cornering at higher speeds, a laterally shifting anti-roll bar decreases the efficiency and effectiveness of the bar, changing the dynamics of your suspension system in unpredictable ways. It also poses the risk of the bar fouling on other areas of the vehicle or suspension system.