De-cambered ball joint for A-arm. Porsche 911 RS 1974-89  ❭  90134104704

De-cambered Ball Joint For A-arm. FI 18 (Will Not Fit Standard Shock Absorber)
The OE Match De-Cambered Ball Joint for A-Arm, Ø18 is a premium-quality suspension upgrade component designed for compatible Porsche models requiring increased suspension geometry adjustment for performance or motorsport applications. Manufactured to OE specifications for fit, strength and durability, this Ø18mm de-cambered ball joint is engineered to provide additional negative camber, improving tyre contact, steering precision and front-end grip during demanding driving conditions.

Fits:

• 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 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 914 (1970-1976)  

(Cars Fitted With RS Type Suspension)

Manufactured from high-strength forged steel with a precision-machined ball pin and heavy-duty sealed bearing assembly, the ball joint is engineered to withstand high cornering loads, braking forces and continual suspension movement. Designed for direct installation into compatible A-arms, it provides a robust and reliable solution for vehicles used on the road, track or in competition.  

What This Product Does:

• Connects the front A-arm to the steering knuckle.
• Provides additional negative camber for improved suspension geometry.
• Improves front-end grip during cornering.
• Enhances steering precision and responsiveness.
• Maintains smooth suspension articulation.
• Supports improved handling in performance applications.
• Provides factory-style fitment for compatible upgraded suspension systems.
• Forms an essential part of the front suspension assembly.

Symptoms Of Wear Or Failure:

• Knocking or clunking noises from the front suspension.
• Excessive steering play.
• Uneven or accelerated tyre wear.
• Reduced steering precision.
• Vehicle wandering or instability.
• Vibration through the steering wheel.
• Excessive movement in the suspension joint.
• Split or damaged protective dust boot.
• Grease leakage from the ball joint.
• MOT or vehicle inspection failure due to excessive suspension play.

Why Replacement Matters:

• The ball joint is a critical suspension component that allows the steering knuckle and control arm to move freely while supporting the vehicle's weight. It is continually subjected to heavy braking, cornering forces, road impacts and suspension movement. Over time, internal wear, contamination or deterioration of the protective dust boot can lead to excessive play and reduced suspension accuracy.
• A worn ball joint can negatively affect steering response, wheel alignment and tyre wear while increasing the risk of suspension instability. In performance applications, worn components can significantly reduce handling precision and driver confidence.
• Replacing a worn or damaged ball joint with the OE Match De-Cambered Ball Joint restores accurate suspension geometry and improves front-end handling for compatible performance suspension setups. Manufactured from premium forged materials with precision-engineered internal components, it provides factory-style fitment, exceptional durability and the increased camber required for enhanced road holding and motorsport performance.

Related reference numbers
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90134104704

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