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suspension strut bearing Genuine Porsche part 99333305901

Code: 99333305901

Genuine Porsche part

suspension strut bearing

The product code 99333305901 was also found on these diagrams

502-00 - supporting mount

shock absorber and coil spring 993 1994-98

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

3 3 3

Shock absorber supporting top mount rear. Porsche 993

99333305901/1

Product Information

Shock Absorber Supporting Top Mount, Rear.
The OE Match Rear Shock Absorber Supporting Top Mount (99333305901/1) is a high-quality replacement suspension component designed to securely mount the rear shock absorber assembly to the vehicle chassis while isolating noise, vibration and harshness. Manufactured to OE specifications for fit, durability and performance, this top mount plays a critical role in maintaining rear suspension stability, ride comfort and handling characteristics.

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) TURBO S 1994-97

Diagram Ref No 8

Constructed from robust metal and bonded rubber materials, the mount is engineered to absorb suspension loads generated during acceleration, braking, cornering and uneven road conditions. It provides a secure connection between the rear suspension assembly and body structure, helping to maintain correct suspension geometry and consistent vehicle dynamics.

What This Product Does:

Secures the rear shock absorber assembly to the chassis.
Supports suspension loads during normal vehicle operation.
Absorbs and isolates noise, vibration and harshness (NVH).
Maintains proper rear suspension geometry and alignment.
Allows controlled suspension movement.
Contributes to vehicle stability and handling performance.
Protects surrounding suspension components from excessive stress.
Enhances ride quality and passenger comfort.

Symptoms Of Wear Or Failure:

Clunking, knocking or creaking noises from the rear suspension.
Increased vibration transmitted into the cabin.
Poor ride quality or excessive harshness.
Excessive rear suspension movement.
Reduced handling stability during cornering.
Uneven tyre wear.
Visible cracks, splitting or deterioration of the rubber mount.
Excessive play in the shock absorber assembly.
Rear-end instability over uneven road surfaces.
Premature wear of shocks and related suspension components.

Why Replacement Matters:

Rear shock absorber top mounts are subjected to continual suspension movement, road impacts, vibration and environmental exposure throughout their service life. Over time, the rubber isolator can deteriorate, harden, crack or separate from its metal housing, reducing its ability to effectively support and cushion the suspension assembly.
A worn top mount can negatively affect ride comfort, suspension performance and vehicle stability. Excessive movement within the mount may place additional strain on shock absorbers, springs and suspension linkages, potentially leading to accelerated component wear and increased repair costs.
Replacing a worn or damaged rear shock absorber supporting top mount restores proper suspension support, improves ride quality and helps maintain predictable handling characteristics. An OE Match replacement provides factory-style fitment, reliable vibration isolation and long-lasting durability, ensuring your Porsche continues to deliver the comfort, stability and performance expected from its suspension system.

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

99333305901

993-333-059-00

99333305900

99333305901

The product you are viewing cross references to these numbers

Drop link, Rear. Porsche 993 1994-97 C2 / C4 / M030 / 993 turbo

99333307304/1

Product Information

Rear Anti Roll Bar Drop Link - fits Left and Right
Sold each - 2 required per car

Restore the handling precision and stability of your Porsche with this OE Match Rear Anti Roll Bar Drop Link for the Porsche 993 and 993 Turbo. This critical suspension component connects the rear anti roll bar (sway bar) to the rear suspension assembly, allowing the anti roll bar to effectively control body movement during cornering and high-speed driving.

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

Diagram ref no 5

The Porsche 993 is renowned for its exceptional balance and handling characteristics. A properly functioning rear anti roll bar system is essential for maintaining the confidence-inspiring road holding and stability that make the final air-cooled 911 so rewarding to drive.

Manufactured to OE Match specifications, this rear drop link provides reliable performance, correct fitment and factory-style suspension operation.

What Does a Rear Anti Roll Bar Drop Link Do?

The rear anti roll bar drop link forms the connection between the anti roll bar and the suspension system.

Its primary functions include:

Transferring suspension movement to the anti roll bar
Helping reduce body roll during cornering
Improving vehicle stability
Supporting balanced handling characteristics
Enhancing steering response
Maintaining suspension geometry
Improving driver confidence

Without correctly functioning drop links, the anti roll bar cannot effectively perform its role within the suspension system.

Why Do Rear Drop Links Fail?

Drop links operate in a harsh environment and are constantly exposed to movement, vibration and road contamination.

Common causes of failure include:

Ball joint wear
Rubber boot deterioration
Corrosion Water ingress
Road salt exposure
High mileage wear
Suspension fatigue
Age-related deterioration

As wear develops, excessive movement can occur within the joints, reducing suspension effectiveness.

Symptoms of a Failing Rear Anti Roll Bar Drop Link

Common warning signs include:
Knocking noises from the rear suspension
Clunking sounds over bumps
Reduced handling precision
Increased body roll during cornering
Suspension looseness
Uneven vehicle behaviour
Excessive play in the drop link joints
MOT or inspection failures relating to suspension wear

These symptoms often become more noticeable during spirited driving or on uneven road surfaces.

When Should the Drop Link Be Replaced?

Replacement is recommended when:
Joint play is detected
Suspension noises develop
Rubber boots become damaged
Corrosion affects the component
Handling performance deteriorates
Suspension refurbishment is being carried out
Restoring a Porsche 993 or 993 turbo
Preventative maintenance is being performed

Many Porsche specialists recommend inspecting drop links during routine suspension servicing.

Why Replacement Matters

A worn rear drop link can significantly affect suspension performance and vehicle stability.

Benefits of replacement include:

Improved handling precision
Reduced suspension noise
Better cornering stability
Improved steering feel
Reduced body roll
Enhanced driver confidence
Restored suspension performance
Improved overall driving dynamics

Replacing worn suspension components helps maintain the factory handling characteristics Porsche engineered into the 993 platform.

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

99333307304

99333307301

99333307302

99333307303

99333307304

The product you are viewing cross references to these numbers

Drop link, Rear. Porsche 993 1994-97 RS

99333307383/2

Product Information

Rear Anti Roll Bar Drop Link - fits Left or Right Hand Side
Sold each - 2 required per car

Maintain the legendary handling precision of your Porsche 993 RS with this OE Match Rear Anti Roll Bar Drop Link. This component forms a vital connection between the rear anti roll bar and the rear suspension assembly, ensuring the anti roll bar can effectively control body movement and maintain chassis stability during high-performance driving.

Fits:

Porsche 993 (911) RS 1994-97

Developed for one of the most focused air-cooled Porsche models ever produced, the 993 RS demands suspension components that can withstand demanding road and track use while preserving the razor-sharp handling characteristics for which the model is renowned.

Manufactured to OE Match standards, this rear anti roll bar drop link restores suspension integrity, responsiveness and driver confidence.

What Does the Rear Anti Roll Bar Drop Link Do?

The drop link transfers suspension movement to the anti roll bar, allowing the anti roll bar to distribute load across the suspension system during cornering.

Its primary functions include:

Connecting the anti roll bar to the suspension
Reducing body roll during cornering
Improving chassis balance
Enhancing vehicle stability
Maintaining suspension geometry
Improving steering response
Supporting predictable handling characteristics

The anti roll bar system is particularly important on high-performance models such as the Porsche 993 RS where suspension precision is critical.

Why Do Rear Anti Roll Bar Drop Links Fail?

Drop links are constantly subjected to suspension movement, vibration and environmental exposure.

Common causes of failure include:

Ball joint wear
High-performance driving loads
Road and track use
Corrosion
Water ingress
Rubber boot deterioration
Age-related wear
Suspension fatigue

Over time, wear within the joints can create unwanted movement that compromises suspension performance.

Symptoms of a Worn Rear Drop Link

Common warning signs include:

Knocking noises from the rear suspension
Clunking sounds over uneven surfaces
Reduced handling precision
Increased body roll
Rear-end instability during cornering
Excessive play in suspension joints
Uneven suspension behaviour
MOT or inspection advisories relating to suspension wear

These symptoms are often more noticeable during spirited driving and track use.

When Should the Drop Link Be Replaced?

Replacement is recommended when:

Excessive joint play is detected
Suspension noises develop
Rubber dust boots become damaged
Corrosion affects the component
Suspension performance deteriorates
Chassis refurbishment is being carried out
The vehicle is used regularly on track
Completing a Porsche 993 RS restoration

Many Porsche specialists replace drop links during suspension overhauls to ensure optimal chassis performance.

Why Replacement Matters

A worn drop link can reduce the effectiveness of the anti roll bar and compromise handling performance.

Benefits of replacement include:

Improved chassis response
Better cornering stability
Reduced body roll Improved steering feel
Enhanced driver confidence
Reduced suspension noise
Restored suspension performance
Preservation of factory handling characteristics

For Porsche RS models, maintaining suspension precision is essential to preserving the vehicle's unique driving dynamics.

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

99333307383

99333307380

99333307382

99333307383

The product you are viewing cross references to these numbers

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suspension strut bearing Genuine Porsche part 99333305901