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- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Rear Suspension Bearing Pin - fits Left or Right Hand Side
Restore the integrity and serviceability of your Porsche 928
rear suspension with this Rear Suspension Bearing Pin.
Fits:
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 17
Suitable for all Porsche 928 model years from 1978 to 1995,
including the highly desirable GTS models, this suspension bearing pin forms a
critical mounting point within the rear suspension assembly. It is the primary
fixing bolt that secures the rear shock absorber to the rear axle wheel carrier
and plays an essential role in maintaining suspension geometry, stability and
ride quality.
What Does the Rear Suspension Bearing Pin Do?
The rear suspension bearing pin acts as the main fixing point between the rear shock absorber and the rear suspension carrier assembly.
Its primary functions include:
- Securing the rear shock absorber
- Maintaining suspension alignment
- Supporting suspension movement
- Helping control wheel motion
- Preserving ride quality
- Supporting vehicle stability
- Maintaining safe suspension operation
Without a correctly fitted and structurally sound bearing pin, the rear suspension cannot function as designed.
Why Do Rear Suspension Bearing Pins Fail?
Although manufactured from high-strength steel, these bolts are exposed to decades of road use and harsh environmental conditions.
Common causes of deterioration include:
- Corrosion from water and road salt
- Galvanic corrosion between suspension components
- Long-term moisture exposure
- Seizure within the suspension carrier
- Thread damage during removal
- Age-related deterioration
- Previous incorrect installation
- Suspension refurbishment work
Many original bolts become heavily corroded, often making removal extremely difficult during suspension repairs.
Common Problems During Removal
On many Porsche 928 models, including low-mileage and well-maintained vehicles, the original bearing pin can become seized within the rear wheel carrier and shock absorber mounting.
In severe cases:
- The bolt may be impossible to remove conventionally
- The shock absorber lower mount may need cutting away
- Corroded hardware may require grinding off
- Hydraulic pressing equipment may be needed to remove the seized pin
- Replacement hardware becomes essential during reassembly
This is why replacement bearing pins are commonly fitted whenever rear suspension refurbishment or shock absorber replacement is carried out.
Symptoms of a Worn or Damaged Bearing Pin
Potential warning signs include:
- Corrosion visible on the bolt
- Damaged threads
- Suspension looseness
- Difficulty tightening to specification
- Excessive wear during inspection
- Movement within the mounting point
- Signs of previous corrosion damage
Even if no symptoms are present, heavily corroded original hardware should be replaced during suspension work.
When Should the Rear Suspension Bearing Pin Be Replaced?
Replacement is recommended when:
- Replacing rear shock absorbers
- Restoring rear suspension components
- Corrosion is present
- Removing seized original hardware
- Performing preventative maintenance
- Carrying out a full suspension rebuild
- Restoring a Porsche 928 to factory condition
Most Porsche specialists replace these bolts as a matter of course whenever the rear shocks are removed.
Why Replacement Matters
Replacing ageing suspension hardware helps ensure long-term reliability and ease of future servicing.
Benefits include:
- Improved corrosion resistance
- Reliable suspension mounting
- Correct factory fitment
- Improved serviceability
- Enhanced safety
- Long-term durability
- Professional restoration quality
- Reduced future maintenance issues
The galvanised finish provides excellent protection against corrosion, helping the new bearing pin remain serviceable for years to come.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92833164101
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
The Porsche Genuine OE Rear Lower Control Arms (Part Nos. 8R0505311F and 8R0505312F) are factory-engineered suspension components designed for the rear axle of the Porsche 95B Macan. Often referred to as rear lower control arms or trailing arms, these components connect the rear wheel carrier to the chassis and form an essential part of the vehicle’s independent rear suspension system.
Fits:
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019 - 2021
Porsche 95B.3 Macan 2022 >>
Diagram ref no 7
Each arm is supplied as a single genuine Porsche product (sold individually) and includes integrated suspension bushings to ensure proper articulation, durability, and vibration isolation.
• 8R0505311F – Rear lower control arm / trailing arm (Left side)
• 8R0505312F – Rear lower control arm / trailing arm (Right side)
The rear trailing arm functions as a pivoting link between the rear suspension subframe and the wheel hub assembly. It allows the rear wheels to move vertically over bumps while maintaining precise wheel alignment relative to the vehicle body.
By controlling suspension movement and absorbing loads from braking, acceleration, and cornering, the control arm contributes to stable handling, smooth ride quality, and consistent tyre contact with the road surface.
Functions & Technical Role
• Wheel positioning: Maintains correct rear wheel alignment and suspension geometry
• Suspension articulation: Allows controlled vertical movement of the wheel over uneven surfaces
• Load distribution: Transfers forces from braking, acceleration, and cornering to the chassis
• Integrated bushings: Reduce vibration and road noise while allowing smooth pivot movement
• OE-engineered durability: Manufactured to Porsche specifications for long service life and precise fitment
Over time, control arm bushings can wear due to road impacts, vibration, and continuous suspension movement. When worn, drivers may experience:
• Clunking noises from the rear suspension
• Uneven tyre wear
• Poor wheel alignment or vehicle pulling
• Reduced handling precision and ride comfort
Replacing worn arms with genuine Porsche OE control arms restores the correct suspension geometry and maintains the Macan’s original driving dynamics.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8R050531
The product you are viewing cross references to these numbers
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- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
- Porsche 95B.3 Macan Petrol 2.0L (265Bhp) 2022>>
- Porsche 95B.3 Macan T Petrol 2.0L (265Bhp) 2022>>
- Porsche 95B.3 Macan S Petrol 2.9L V6 (380Bhp) 2022>>
- Porsche 95B.3 Macan GTS Petrol 2.9L V6 (440Bhp) 2022>>
The Rear Lower Control Arm Bushing (FRONT) is a high-quality suspension bushing designed to restore correct mounting and controlled movement of the rear lower control arm on compatible Porsche vehicles. This bushing sits between the control arm and the chassis/subframe, acting as a flexible joint that absorbs road vibration while allowing the suspension to articulate smoothly under braking, acceleration, and cornering loads.
Sold Each, x2 Required Per Car.
Fits:
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019 - 2021
Porsche 95B.3 Macan 2022 >>
Fist inside middle of number 1 on diagram (marked in green)
Over time, suspension bushings can deteriorate due to age, heat, road contamination, and repeated flexing. A worn rear lower control arm bushing can lead to clunking noises, unstable handling, uneven tyre wear, and difficulty maintaining proper wheel alignment. Replacing the bushing helps return suspension geometry to factory condition, improving comfort, stability, and overall driving confidence.
What This Product Does:
- Acts as the pivot point between the rear lower control arm and subframe
- Absorbs vibration and road shock for a smoother ride
- Maintains correct suspension geometry and alignment
- Helps control wheel movement under load (acceleration, braking, cornering)
- Reduces noise, harshness, and vibration transmitted to the cabin
Symptoms Of Worn Or Failed Rear Lower Control Arm Bushing:
Noise & Vibration
- Clunking, creaking, or knocking over bumps
- Vibration through the floor or rear of the vehicle
Handling & Stability Issues
- Wandering or unstable rear end
- Poor cornering response
- Braking pull or imbalance
Wear & Alignment Problems
- Uneven or accelerated tyre wear
- Difficulty holding a wheel alignment
- Rear end “floaty” feel at speed
Visual/Physical Signs
- Cracks, splits, or visible degradation of the rubber material
- Play or movement at the bushing when pushed/pulled
Why Replacement Matters:
- Worn bushings allow uncontrolled movement in the suspension, which degrades stability, steering feel, and driver confidence—especially in corners or sudden manoeuvres.
- Proper bushings help maintain wheel alignment under load, reducing uneven tyre wear and extending tyre life.
- New bushings absorb shock and vibration more effectively, reducing harshness and noise transmitted to the cabin.
- Controlling unwanted movement helps prevent premature wear of control arms, ball joints, and other suspension parts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8R0505311FF
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
- Porsche 95B.3 Macan Petrol 2.0L (265Bhp) 2022>>
- Porsche 95B.3 Macan T Petrol 2.0L (265Bhp) 2022>>
- Porsche 95B.3 Macan S Petrol 2.9L V6 (380Bhp) 2022>>
- Porsche 95B.3 Macan GTS Petrol 2.9L V6 (440Bhp) 2022>>
The Rear Lower Control Arm Bushing (REAR) is a high-quality suspension bushing designed to restore correct mounting and controlled movement of the rear lower control arm on compatible Porsche vehicles. This bushing sits between the control arm and the chassis/subframe, acting as a flexible joint that absorbs road vibration while allowing the suspension to articulate smoothly under braking, acceleration, and cornering loads.
Sold Each, x2 Required Per Car.
Fits:
Porsche 95B.1 Macan 2014 - 2018
Porsche 95B.2 Macan 2019 - 2021
Porsche 95B.3 Macan 2022 >>
Fist inside middle of number 1 on diagram (marked in green)
Over time, suspension bushings can deteriorate due to age, heat, road contamination, and repeated flexing. A worn rear lower control arm bushing can lead to clunking noises, unstable handling, uneven tyre wear, and difficulty maintaining proper wheel alignment. Replacing the bushing helps return suspension geometry to factory condition, improving comfort, stability, and overall driving confidence.
What This Product Does:
- Acts as the pivot point between the rear lower control arm and subframe
- Absorbs vibration and road shock for a smoother ride
- Maintains correct suspension geometry and alignment
- Helps control wheel movement under load (acceleration, braking, cornering)
- Reduces noise, harshness, and vibration transmitted to the cabin
Symptoms Of Worn Or Failed Rear Lower Control Arm Bushing:
Noise & Vibration
- Clunking, creaking, or knocking over bumps
- Vibration through the floor or rear of the vehicle
Handling & Stability Issues
- Wandering or unstable rear end
- Poor cornering response
- Braking pull or imbalance
Wear & Alignment Problems
- Uneven or accelerated tyre wear
- Difficulty holding a wheel alignment
- Rear end “floaty” feel at speed
Visual/Physical Signs
- Cracks, splits, or visible degradation of the rubber material
- Play or movement at the bushing when pushed/pulled
Why Replacement Matters:
- Worn bushings allow uncontrolled movement in the suspension, which degrades stability, steering feel, and driver confidence—especially in corners or sudden manoeuvres.
- Proper bushings help maintain wheel alignment under load, reducing uneven tyre wear and extending tyre life.
- New bushings absorb shock and vibration more effectively, reducing harshness and noise transmitted to the cabin.
- Controlling unwanted movement helps prevent premature wear of control arms, ball joints, and other suspension parts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
8R0505311FR
The product you are viewing cross references to these numbers