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Porsche > Cayenne 9YA 2018-2023 > 9YA Cayenne Coupe Turbo S E-Hybrid V8 4.0L 550Hp 2020-23 > Suspension & Axle > Anti Roll Bar Bushes >

Front stabilizer bar bush 16mm, SET OF 4. Porsche 911 74-77  ❭  91134379202

Front stabilizer bar bush 16mm, SET OF 4. Porsche 911 74-77 - 91134379202 - 1640600400
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91134379202/1KIT
Product Information
Product Information
Front Stabilizer Bar Mounting Bushing / Sway Bar Bushing, SET OF 4.
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.

Fits:
Porsche 911 1974 - 1977

Diagram ref no 23

• Quantity: Set of 4 pieces
•  Inner Diameter: 16 mm (designed for 16 mm sway bar)
•  Function: Supports and isolates the anti-roll bar from the chassis while allowing controlled movement
•  Position: Front suspension — stabilizer bar mounting locations (two per side)
•  Symptoms of wear: Squeaking, knocking, excessive body roll, looseness, or sway bar movement
•  Benefits: OE-spec material hardness and fit, quieter ride, reduced vibration, restored bar performance, and long-term durability
•  Installation: Fit each bushing over the stabilizer bar, seat securely in the bracket cradle, and fasten using the correct factory clamps or straps

Over time, stabilizer (sway) bar bushings are subjected to continuous twisting, compression, and exposure to road debris, heat, and oils. The rubber material gradually hardens, cracks, or deforms, reducing its ability to cushion the stabilizer bar and maintain tension. When this occurs, the bar can move or rattle inside its mounts, leading to reduced cornering stability and increased noise during driving.

Replace this set when:
•  You hear clunking or squeaking noises from the front suspension
•  The car feels less stable in corners or exhibits excessive body roll
•  The bushings show visible cracks, tearing, or softness Performing front suspension repairs or sway bar service

Installing a new set of 4 bushings restores the proper preload and isolation in the stabilizer system — reducing roll, eliminating noise, and bringing back Porsche’s signature steering precision and balance.

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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.