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Cross Member & Parts

DISPLAYING 1 to 7 (of 7 products)
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99134108116
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Product Information
Front Suspension Cross Member.

Fits:
Porsche 981 Boxster 2012>>2016
Porsche 981 Cayman 2014>>2016
Porsche 981 Boxster Spyder 2016>>2016
Porsche 981 Cayman GT4 2016>>2016
Porsche 982 Boxster (718) 2017>>
Porsche 982 Cayman (718) 2017>>
Porsche 982 Boxster Spyder (718) 2019>>

Porsche 982 Cayman GT4 (718) 2019>>
Porsche 991.1 Carrera MKI 2012>>2016
Porsche 991.2 Carrera MKII 2017>>2019
Porsche 991 Turbo / Turbo S / GT2 RS MKI / MKII 2014>>2020
Porsche 991 R / GT3 / RS / Speedster MKI / MKII 2014>>2021

Diagram Ref No 1



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99134108116
99134108116

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90037813901
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Hexagon-Head bolt, M 12 x1,5 x 80.
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


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90037813901
90037813901
90037813909

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98133126111
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Rear axle bracket.

porsche

Fits:
Porsche 718 Boxster 2017>>
Porsche 718 Boxster Spyder 2019>>
Porsche 718C Cayman 2017>>
Porsche 718C Cayman GT4 2019>>

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Diagram ref no 11
Special Order item
982505
Product Information
Product Information
Rear axle cross support brace. 

Fits:
Porsche 982 Boxster (718) 2017>>
Porsche 982 Cayman (718) 2017>>
Porsche 982 Boxster Spyder 2019>>
Porsche Cayman GT4 2019>>

Diagram Ref No 8

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982505
982505
982505477A
982505478A
982505477
982505478
98133113104
98133113105
98133113106
98133113204
98133113205
98133113206

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982505475
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Rear corssmember strut.

porsche

Fits:
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718C) Cayman 2017>>

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Diagram ref no 33

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982505475
982505475

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982505099C
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Rear cross member for Porsche 981 / 718 (982) models. 

porsche

Fits:
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2013-16
Porsche 718 Boxster 2017>>
Porsche 718 Cayman 2017>>



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982505099C
98133107110
98133107104

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98133109301
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Rear strut bar support.

porsche

Fits:
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 982 (718) Boxster 2017>>
Porsche 982 (718) Boxster Spyder 2019>>
Porsche 981C Cayman 2013-16
Porsche 981C Cayman GT4 2016
Porsche 982C (718C) Cayman 2017>>
Porsche 982C (718C) Cayman GT4 2019>>

Click 'Zoom in' for large parts diagram.
Diagram ref no. 12

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98133109301
98133109301

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DISPLAYING 1 to 7 (of 7 products)
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About Cross Member & Parts

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.

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