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- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
Stop Buffer, Rear.
The Genuine Porsche Rear Stop Buffer (Part Number 95833313105) is an essential suspension component designed to protect the rear shock absorber assembly and help maintain controlled suspension movement on Porsche Cayenne (958) models.
Fits:
Cars With Option Codes:
1BH - Suspension/Dampers, Standard 2 PASM
1BZ - Comfort Suspension/Damping, PASM
Diagram Ref No 8
Manufactured to Porsche's original equipment specifications, this rear suspension bump stop provides progressive cushioning when the suspension approaches the limit of its compression travel. It helps absorb excessive suspension movement caused by heavy loads, uneven road surfaces, potholes and demanding driving conditions.
Positioned within the rear shock absorber assembly, the stop buffer acts as a protective cushioning element, helping prevent harsh metal-to-metal contact and reducing excessive stress on the shock absorber and associated suspension components.
During normal driving, the rear suspension continuously compresses and rebounds to maintain comfort, stability and road contact. When the suspension experiences greater compression, the stop buffer provides additional resistance, helping reduce harsh impacts and protect critical suspension components.
Over time, the original stop buffer can deteriorate due to ageing, repeated compression, moisture, road contaminants and temperature changes. Worn or damaged buffers may lose their ability to cushion suspension movement effectively, potentially resulting in harsher suspension impacts, increased noise and additional wear on surrounding components.
Replacing a deteriorated stop buffer with a Genuine Porsche component helps restore the intended suspension cushioning, maintain driving comfort and protect the rear shock absorber assembly from excessive compression forces.
Ideal for routine suspension maintenance, shock absorber replacement and rear suspension repairs, this genuine Porsche stop buffer provides original equipment fitment and dependable performance.
What This Product Does:
The rear stop buffer, also known as a suspension bump stop or jounce bumper, performs several important functions within the vehicle's rear suspension system.
- Limits Excessive Suspension Compression: Provides progressive resistance as the rear suspension approaches the end of its available compression travel.
- Protects the Shock Absorber: Helps prevent the shock absorber from experiencing harsh mechanical impacts when the suspension compresses heavily.
- Absorbs Suspension Impacts: Cushions the effects of potholes, speed bumps, uneven roads and heavy suspension loading.
- Prevents Harsh Bottoming Out: Reduces the severity of impacts when the suspension reaches its compression limits.
- Maintains Ride Comfort: Helps reduce harsh jolts and vibrations transmitted through the vehicle during extreme suspension movement.
- Protects Suspension Components: Reduces excessive mechanical stress on the shock absorber, mounting points and surrounding suspension assemblies.
- Supports Controlled Suspension Movement: Provides additional resistance under heavy compression to help maintain predictable suspension behaviour.
- Accommodates Vehicle Loading: Helps protect the suspension when carrying passengers, luggage or heavier loads.
- Maintains Factory Suspension Performance: Designed to work with the specified Porsche rear suspension configuration.
Symptoms Of Wear Or Failure:
Rear suspension stop buffers are exposed to repeated compression, road debris, moisture and temperature changes. Over time, these conditions can cause the original material to deteriorate.
Common symptoms of a worn or damaged rear stop buffer include:
- Harsh Suspension Bottoming Out: Heavy jolts or impacts may be felt when driving over potholes, speed bumps or uneven road surfaces.
- Knocking or Thudding Noises: Unusual noises from the rear suspension may occur when the suspension compresses heavily.
- Cracked or Split Buffer: Visible cracking, splitting or deterioration of the cushioning material.
- Crumbling or Disintegrating Material: Ageing material may break apart, leaving fragments around the shock absorber assembly.
- Reduced Suspension Cushioning: The suspension may feel harsher during larger bumps or heavy compression.
- Excessive Suspension Impact: A severely deteriorated or missing buffer may allow harder impacts at the limits of suspension travel.
- Deformed or Compressed Buffer: The stop buffer may become permanently flattened or distorted, reducing its effective cushioning.
- Increased Suspension Vibration: Harsh impacts may transmit additional vibration into the vehicle body.
- Premature Shock Absorber Wear: Repeated bottoming-out events may place additional strain on the shock absorber and its mounting components.
- Visible Missing or Damaged Buffer: Inspection may reveal that the original stop buffer has become detached, broken or completely deteriorated.
Why Replacement Matters:
Replacing a worn or damaged rear suspension stop buffer helps maintain the integrity, comfort and reliability of the vehicle's suspension system.
Key Benefits of Replacement:
- Restores Suspension Cushioning: Re-establishes the protective cushioning effect during heavy suspension compression.
- Helps Prevent Harsh Bottoming Out: Reduces the severity of impacts when the suspension approaches the end of its travel.
- Protects the Rear Shock Absorbers: Helps reduce excessive mechanical stress that may contribute to premature shock absorber damage.
- Maintains Driving Comfort: Minimises harsh jolts and impacts transmitted through the vehicle.
- Reduces Suspension Noise: Helps prevent impact-related knocking or thudding caused by a missing or deteriorated buffer.
- Protects Surrounding Components: Reduces unnecessary strain on suspension mounts and associated components.
- Supports Predictable Suspension Behaviour: Maintains the intended cushioning characteristics during heavy compression.
- Genuine Porsche Quality: Manufactured to the original specifications for the applicable rear suspension assembly.
- Correct Original Equipment Fitment: Designed to match the intended dimensions and installation requirements.
- Supports Long-Term Reliability: Helps prevent avoidable wear caused by excessive suspension impacts.
- Ideal During Shock Absorber Replacement: Provides an opportunity to renew ageing suspension protection components when the rear suspension is dismantled.
- Cost-Effective Preventative Maintenance: Replacing a relatively small protective component may help avoid damage to more expensive suspension parts.
Although the rear stop buffer is a relatively small component, it performs an important protective function within the suspension assembly.
A deteriorated or missing stop buffer can allow harsher suspension impacts, particularly when driving over uneven road surfaces or carrying heavier loads. Repeated excessive compression may place additional stress on the shock absorber and other suspension components.
Replacing the stop buffer with a Genuine Porsche part helps maintain the vehicle's original suspension performance and contributes to improved comfort, durability and long-term reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95833313105
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