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Porsche > Boxster 718 (982) 2017>> > Boxster S 718 2.5L PDK (350 Bhp) > Suspension & Axle > Anti Roll Bar Bracket >

Anti roll bar bush clamp. Porsche 911 / 914  ❭  90133375301

Anti roll bar bush clamp. Porsche 911 / 914 - 90133375301 - 5138, 9800037, 1650450400
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Product Information
Anti roll bar bush clamp. Rear axle.
It clamps the anti-roll bar bushing to the rear axle mounting point, keeping the bar located and preventing sideways movement, knocks, or clunks caused by loose or worn mounting hardware.
Sold each, 2 required per vehicle.

Fits:
Porsche 911/912 1965 - 1977
Porsche 911 (930) Turbo 1975 - 1977
Porsche 914 1970 - 1976

Diagram ref no 6

Bolted to the factory rear mounting location, the clamp applies even pressure around the bush to keep it seated and stable. Correct clamp alignment supports consistent anti-roll bar response and helps the suspension operate quietly and effectively.

A worn or rusted clamp can allow the bushing to shift, leading to clunking noises, inconsistent anti-roll bar action, and reduced handling precision. Replacing the clamp helps restore correct bushing retention and keeps the rear suspension tight and responsive.

When to replace:
• Visible rust, thinning metal, or deformation
• Rear suspension clunks/knocks over bumps
• Bush not held firmly or shows signs of movement
• During anti-roll bar bush replacement or suspension refresh
• After removal where original clamp hardware is weakened

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90133375301
90133375301

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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.