Cross Member & Parts
Hexagon-Head bolt for Rear suspension cross member. Porsche 996 / 997
This Genuine Porsche hexagon-head bolt is used to secure the rear suspension cross-member on Porsche 996 and 997 models.
Sold each, required 4 per vehicle.
Fits:
Porsche 996 1998 - 2004 all models
Porsche 997.1 2005 - 2008 all models
Porsche 997.2 2009 - 2012 all models
Diagram ref no 4
Bolts securing suspension cross-members endure constant dynamic stress, heat, and exposure to moisture. Over time, this can lead to corrosion, stretching, or loss of clamp force, potentially compromising alignment and safety.
When to Replace:
• During rear subframe or cross-member removal/reinstallation
• If original bolts show corrosion, thread damage, or deformation
• When performing a complete suspension overhaul or alignment service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037813901
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Lower rear rocker arm bar. Porsche 928
- 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
1 Required per side, Price is each
Fits:
Porsche 928 1978-1995
The Porsche 928 lower rear arm can now, finally be renovated with our newly produced rocker arm bar.
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
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Related, superseded, cross reference or alternative numbers for comparison.
92833108500
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12 Month Warranty
Worldwide Delivery
Lower Rear Rocker Arm Bar. Porsche 928
- 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
Renew your Porsche 928’s rear suspension performance with the Lower Rear Rocker Arm Bar.
This essential suspension component connects the lower control arms across the rear axle, managing load transfer and maintaining proper wheel alignment under cornering, braking, and acceleration.
Sold Each.
x2 Required Per Car.
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 12
What This Product Does:
- Linking the two sides — It helps distribute load between the left and right lower control arms, improving how the rear axle reacts to cornering or uneven surfaces.
- Maintaining relative geometry — By coupling the motion of the trailing arms, it stabilizes toe and camber changes under load, improving predictability.
- Reducing compliance / slack — The bar and its bushings resist unwanted movement in the lower control arms, preventing them from moving independently in undesirable ways.
- Improving handling balance — Helps reduce unwanted rear-end movement, contributing to better rear grip and more consistent behavior over bumps or transitions.
- Clunking, knocking, or banging noises from the rear suspension over bumps or during load shifts
- Rear-end looseness or vagueness — the back of the car may feel less planted or predictable
- Uneven or accelerated tire wear on the rear, due to geometry variations
- Changes in alignment under load, especially during cornering or when the car is unsettled
- Loss of consistent rear grip, especially on transitions or during spirited driving
- Restores rear stability and predictability — with rigid, properly bushing-supported linkage, the rear behaves more reliably
- Eliminates noise & slack — worn linkage causes audible play; a fresh bar or good bushings cure that
- Preserves alignment / geometry under load — prevents misalignment changes mid-corner
- Improves overall handling feel — better feedback, confidence, and consistency
- Prolongs life of connected parts — less undue stress on arms, mounts, and bushings
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92833108500
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12 Month Warranty
Worldwide Delivery
Rear Axle Cross Member Hexagon-Head Bolt. Porsche 928
- 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
Fits:
Porsche 928 1978-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0104736
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12 Month Warranty
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Replacement bush set for lower rocker arm. Porsche 928
- 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
2x silent bloc, 1x connecting hose.

Fits:
Porsche 928 1978-95
Click 'Zoom in' for large parts diagram.
Fits to number 12 on diagrams.
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Related, superseded, cross reference or alternative numbers for comparison.
92833108500
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12 Month Warranty
Worldwide Delivery
Replacement Bush Set For Lower Rocker Arm. Porsche 928
- 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
Bring back the solid, composed feel of your Porsche 928’s rear suspension with this Replacement Bush Set for Lower Rocker Arm.
Located within the rear rocker arm assembly, these bushings control the articulation of the lower suspension arms, maintaining proper geometry and stability during acceleration, braking, and cornering.
Sold As A Set.
x2 Sets Required Per Car.
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
Fits On To Diagram Ref No 12
What This Product Does:
- Holds the rocker arm in place, connecting it to the chassis or subframe while allowing pivoting motion.
- Allows the rocker mechanism to articulate smoothly, transferring load between trailing arms or controlling geometry changes.
- Helps maintain consistent suspension geometry under load — i.e. when the car is accelerating, braking, or cornering.
- Reduces unwanted movement or slack in the linkage, preserving handling precision and stability.
Symptoms Of Worn Or Damaged Bush:
- Clunking or knocking noises from the rear over bumps or during suspension movement
- Rear-end vagueness or instability — the car may feel less planted or “loose”
- Uneven or strange tire wear on the rear tires, due to misalignment or shifting geometry
- Suspicion that the rear changes behavior under load (e.g. under acceleration / braking)
- Reduced handling precision, especially in transitions or fast directional changes
- Restores handling precision — replaces worn, sloppy bushings with tight, controlled support
- Eliminates noise & play — stops knocking or slack in the rocker arm linkage
- Protects suspension geometry — ensures the rocker arm acts as intended, maintaining correct alignment under load
- Prevents further wear — worn bushings transfer stress to surrounding arms, brackets, or linkage elements
- Improves confidence & stability — rear responses become more predictable, especially at higher speeds or in aggressive driving
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92833108500
The product you are viewing cross references to these numbers
Shop Securely
12 Month Warranty
Worldwide Delivery
Porsche Suspension Cross Member & Parts | Design911 Precision Components for Strength, Alignment & Stability
The suspension cross member — also known as a subframe or suspension carrier — is a structural component that supports key elements of your Porsche’s chassis, including the suspension arms, steering rack, and drivetrain mounts. It provides rigidity, alignment, and load distribution, ensuring that suspension geometry remains consistent under braking, cornering, and acceleration. A properly aligned and structurally sound cross member is essential for precise handling, comfort, and safety.
At Design911, we supply a full range of suspension cross members, mounts, and associated components, engineered for accuracy, strength, and corrosion resistance. Manufactured using reinforced steel or high-grade aluminium, these parts are designed to maintain chassis integrity and suspension precision. Ideal for repairs, restorations, or performance upgrades, our cross members and hardware deliver long-lasting strength and the stability your Porsche deserves.
What Do Suspension Cross Members Do?
The cross member serves as the main support structure for the suspension system, keeping all critical components properly aligned and securely mounted.
Core Functions:
• Support the lower suspension arms, steering rack, and drivetrain.
• Maintain correct suspension geometry for accurate alignment.
• Distribute loads evenly across the chassis.
• Increase torsional rigidity for better handling stability.
• Reduce vibration and noise by isolating components.
A strong, undamaged cross member ensures that your Porsche’s suspension and steering systems work together seamlessly for maximum performance and comfort.
Why Do Suspension Cross Members and Parts Fail or Degrade?
Despite their strength, cross members are subject to stress, corrosion, and fatigue over years of driving, especially in high-performance or harsh environments.
Common Causes of Failure Include:
• Corrosion from road salt, water, or debris.
• Impact damage from potholes, kerbs, or collisions.
• Metal fatigue or cracking under extreme stress.
• Worn or damaged mounting bushes or bolts.
• Misalignment caused by chassis distortion or improper repairs.
When these issues arise, drivers may notice poor handling, uneven tyre wear, clunking noises, or instability — all signs that inspection or replacement is required to maintain safety and control.
Why Replace or Upgrade Your Porsche Suspension Cross Member?
Replacing a damaged or corroded cross member restores chassis alignment, strength, and suspension performance. Upgraded or precision-engineered replacements ensure long-term reliability, improved rigidity, and enhanced handling characteristics.
Key Benefits:
• Restores correct suspension geometry and alignment.
• Improves handling, safety, and steering response.
• Reduces vibration and structural flex.
• Constructed from corrosion-resistant steel or aluminium.
• Fits Porsche 911, 944, 968, Boxster, Cayman, Cayenne, Macan, and Panamera
models.
• Ideal for restorations, structural repairs, or performance upgrades.
Design911’s Porsche suspension cross members and parts combine precision engineering and durability, ensuring your Porsche remains strong, balanced, and responsive on every drive.
Highlights
• Premium Porsche suspension cross members, mounts, and
bolts.
• High-strength steel and alloy construction.
• Precision-engineered for alignment and rigidity.
• Enhances suspension geometry and vehicle balance.
• Suitable for both classic and modern Porsche models.
• Perfect for restoration, servicing, or performance tuning.