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Ball Joints
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Front Suspension Wear and Replacement
On the Porsche 993, common failure points in the front suspension include the
control arms, ball joints, tie rods and bellows. As these components wear, you may notice clunking over bumps, loose or vague steering, uneven tire wear, or steering wheel vibration. Because the front suspension system is highly interconnected, wear in one part often accelerates the deterioration of other components.
To address this, we’ve developed a complete wishbone arms, ball joints & tie rods designed to restore handling, performance, and safety. This kit includes new front control arms, ball joints, tie rods and bellows ensuring a comprehensive solution rather than piecemeal repairs.

Fits:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Why Control Arms Matter
Control arms serve as a critical link between the suspension and the subframe. Their hinged design allows the suspension to articulate as the vehicle absorbs bumps or navigates turns. On vehicles with independent suspension, like the 993, multiple arms and connection points contribute to better ride comfort and stability.
As bushings and joints within a control arm wear out, the suspension can begin to feel loose or unstable. While some designs allow individual components to be serviced, many control arms require complete replacement to restore proper function.
Symptoms of Control Arm Failure
Signs that your control arms may need replacement include:
- Excessive play where the arms connect to the subframe or knuckle
- Clunking or knocking noises from the suspension
- Uneven tire wear
- Difficulty achieving proper wheel alignment
- Steering wheel vibration at highway speeds
- Wandering or pulling sensation through the steering wheel
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT993.3
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Front Suspension Wear and Replacement
On the Porsche 993, common failure points in the front suspension include the control arm bushings and ball joints. As these components wear, you may notice clunking over bumps, loose or vague steering, uneven tire wear, or steering wheel vibration. Because the front suspension system is highly interconnected, wear in one part often accelerates the deterioration of other components.
To address this, we’ve developed a complete wishbone control arm & ball joints kit designed to restore handling, performance, and safety. This kit includes new front control arms and ball joints, ensuring a comprehensive solution rather than piecemeal repairs.

Fits:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Why Control Arms Matter
Control arms serve as a critical link between the suspension and the subframe. Their hinged design allows the suspension to articulate as the vehicle absorbs bumps or navigates turns. On vehicles with independent suspension, like the 993, multiple arms and connection points contribute to better ride comfort and stability.
As bushings and joints within a control arm wear out, the suspension can begin to feel loose or unstable. While some designs allow individual components to be serviced, many control arms require complete replacement to restore proper function.
Symptoms of Control Arm Failure
Signs that your control arms may need replacement include:
- Excessive play where the arms connect to the subframe or knuckle
- Clunking or knocking noises from the suspension
- Uneven tire wear
- Difficulty achieving proper wheel alignment
- Steering wheel vibration at highway speeds
- Wandering or pulling sensation through the steering wheel
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT993.2
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits - left or right.

Fits:
Porsche 993 1994-97
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99334104907
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Front Lower Wishbone Ball Joint – fits Left or Right Hand
Side
Sold each – 2 required per car
Restore the sharp steering response and outstanding handling
characteristics of your Porsche with this Front Lower Wishbone Ball Joint.
Manufactured to OE specifications, this premium replacement component is
engineered to provide precise fitment, exceptional durability and smooth
articulation, ensuring your suspension performs exactly as intended.
Fits:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
The lower wishbone ball joint forms one of the most important pivot points in the front suspension system, allowing the steering knuckle to move freely while maintaining accurate wheel alignment and suspension geometry. Constantly subjected to heavy loads from braking, cornering and uneven road surfaces, it is a critical wear component that directly affects vehicle stability, steering accuracy and tyre wear.
Replacing a worn or damaged lower ball joint restores predictable handling, reduces unwanted suspension movement and helps maintain the responsive driving experience Porsche is renowned for.
What Does the Lower Wishbone Ball Joint Do?
The lower wishbone ball joint provides a flexible yet secure connection between the lower control arm and the wheel carrier.
Its primary functions include:
- Connecting the lower wishbone to the steering knuckle.
- Allowing controlled steering articulation.
- Supporting full suspension movement.
- Maintaining accurate wheel geometry.
- Carrying vertical and lateral suspension loads.
- Helping absorb road impacts.
- Providing stable handling during acceleration, braking and cornering.
A correctly functioning ball joint is essential for precise steering feedback and consistent suspension performance.
Why Replace the Lower Ball Joint?
Lower ball joints experience continual movement and high mechanical loads throughout their service life.
Common reasons for replacement include:
- Wear of the internal bearing surfaces.
- Split or deteriorated protective dust boots.
- Loss of lubrication.
- Corrosion caused by water ingress.
- Damage from potholes or kerb impacts.
- High mileage. Age-related deterioration.
- Excessive suspension play.
Replacing worn ball joints restores suspension integrity and helps prevent additional wear to surrounding steering and suspension components.
Symptoms of a Worn Lower Ball Joint
Common warning signs include:
- Knocking or clunking from the front suspension.
- Excessive steering play.
- Wandering or unstable steering.
- Uneven tyre wear.
- Steering wheel vibration.
- Poor wheel alignment.
- Squeaking during suspension movement.
- Excessive movement identified during inspection.
Prompt replacement helps maintain safe handling and prevents further suspension damage.
Benefits
- Restores steering precision.
- Improves suspension stability.
- Maintains correct wheel geometry.
- Reduces suspension noise.
- Minimises uneven tyre wear.
- Enhances braking and cornering confidence.
- Long service life.
- Excellent value alternative to original equipment.
Installation Recommendations
For the best results, inspect related suspension and
steering components during installation, including:
- Lower wishbones.
- Suspension bushes.
- Track rod ends.
- Steering rack components.
- Shock absorbers and top mounts.
- Anti-roll bar links and bushes.
- Wheel bearings.
- Suspension mounting hardware.
After installation, a professional four-wheel alignment is recommended to restore factory suspension geometry, optimise tyre wear and maximise handling performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99334104907
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits - left or right.
Fits:
Porsche 993 1994-97
Price is for each.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99334104907
The product you are viewing cross references to these numbers
Porsche Ball Joints | Design911 Suspension & Steering Components for Precision Handling
Ball joints are crucial pivot points in your Porsche’s suspension system, connecting the control arms to the steering knuckles and allowing smooth, controlled movement of the suspension while steering and driving over uneven surfaces. These components ensure stability, steering precision, and consistent wheel alignment — key for the responsive handling and dynamic balance that define Porsche performance.
At Design911, we supply a comprehensive selection of ball joints and suspension fittings, engineered for strength, accuracy, and long service life. Each component is built from high-grade materials to handle high loads, resist corrosion, and provide consistent performance under pressure. Perfect for routine servicing, suspension restoration, or performance upgrades, our ball joints restore steering precision and ensure your Porsche maintains its legendary road feel.
What Do Ball Joints Do?
Ball joints act as flexible connection points between your Porsche’s control arms and steering knuckles, allowing vertical and rotational movement while maintaining secure wheel alignment.
Core Functions:
• Allow smooth suspension movement and steering rotation.
• Maintain precise wheel alignment for predictable handling.
• Support vehicle weight while absorbing road impact.
• Enable suspension articulation for cornering and braking stability.
• Reduce vibration and improve ride comfort.
Ball joints are essential to maintaining both steering accuracy and suspension balance — ensuring your Porsche feels composed and connected at every speed.
Why Do Ball Joints Fail or Degrade?
Ball joints experience continuous motion, load, and exposure to harsh road conditions, leading to gradual wear or failure over time.
Common Causes of Failure Include:
• Wear of internal bearing surfaces from friction and movement.
• Corrosion or contamination inside the joint housing.
• Cracked or torn dust boots allowing dirt and moisture ingress.
• Excessive load from aggressive driving or poor road surfaces.
• Age-related material fatigue or lubrication loss.
When ball joints fail, symptoms can include clunking noises, uneven tyre wear, vague steering response, and excessive suspension play — all signs that replacement is necessary for safety and performance.
Why Replace or Upgrade Your Porsche Ball Joints?
Replacing worn or damaged ball joints restores handling precision, alignment stability, and steering feedback. Upgraded materials and performance-grade designs also enhance durability and road feel.
Key Benefits:
• Restores precise steering and handling performance.
• Eliminates suspension noise and vibration.
• Improves tyre wear and road stability.
• Available for Porsche 911, 944, 968, Boxster, Cayman, Panamera, and Cayenne
models.
• Made from corrosion-resistant, high-strength materials.
• Ideal for servicing, restoration, or performance tuning.
Design911’s Porsche ball joints deliver exceptional reliability and performance, ensuring your suspension system performs at its peak — whether on the road or the track.
Highlights
• Premium Porsche ball joints and suspension components.
• Precision-engineered for strength and alignment accuracy.
• Designed to reduce vibration and enhance control.
• Corrosion-resistant construction for long service life.
• Fits both classic and modern Porsche models.
• Perfect for suspension servicing, upgrades, or restoration.