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Cross Member & Parts
By OE Match
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
Mounted across the rear axle, it reinforces the suspension subframe and strut mounting points, reducing flex under load and improving overall stability. By keeping the suspension geometry tight, this brace helps maintain precise handling and extends the life of surrounding components.
Fits:
Porsche 996 C2 / C4 / C4S - 1997 to 2004
Porsche 996 turbo - 2000 to 2005
Porsche 996 GT3 - 1999 to 2005
Porsche 997.1 C2 / C4 /C4S - 2005 to 2008
Porsche 997.1 turbo - 2007 to 2008
Porsche 997 GT3 - 2007 to 2012
Porsche 997.1 - 2005 to 2008
Diagram ref no 10
What It Does:
- The bracket reinforces the rear suspension geometry. It braces your Porsche's structure to reduce flex under load, improve stability, and maintain alignment under cornering or when encountering bumps.
- Helps distribute loads through the rear suspension so that components like arms, bushings, struts, and mounts don’t shift or wear prematurely.
Why Replacement Matters:
- If this bracket is damaged, bent, or weakened, you may experience rear-end instability, excessive movement in suspension under load, or handling that feels loose or unpredictable.
- Worn or misaligned brackets allow structural flex, which can accelerate wear in suspension arms and bushings.
- Proper reinforcement helps maintain ride and safety when driving hard or when the vehicle is aged.
You may need to replace the support brace if you hear clunking or knocking from the rear suspension, notice uneven tire wear, or feel looseness in the car’s handling. A visual inspection showing cracks, bends, or corrosion is another clear sign. It’s also smart to check this part after any rear impact, even a minor one, as damage can affect stability and alignment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99733108103
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
This 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
• Function: This bolt is critical to the rear axle assembly, fastening the cross-member to the chassis and supporting overall suspension alignment and load distribution.
• Specification: M12 × 1.5 mm, Length and fitment aligned with factory requirements
• Supersedes: 90037813909
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
Replacing with a high-spec OE Match bolt restores correct torque strength and alignment accuracy, ensuring factory-level performance and reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037813901
The product you are viewing cross references to these numbers
OEMatch Cross Member & Parts — Fit, Function, Confidence
Cross member and related parts form the structural supports for suspension arms, the steering rack and drivetrain mounts on Porsche vehicles, helping to keep alignment and chassis geometry consistent. OEMatch cross member & parts for Porsche models are selected for structural accuracy, corrosion resistance and the correct mounting interfaces required for repairs, restorations and chassis refurbishment.Available Types
- Front subframes and cross members
- Rear cross members and carriers
- Intermediate carriers and brackets
- Repair sections and patch panels
- Mounting kits with bushes, bolts and brackets
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original cross member & parts.
OE (Original Equipment) refers to parts matching original specifications for the cross member & parts and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM cross member & parts engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. OEMatch provides a wide selection of Porsche cross member and related components, cataloguing thousands of part numbers and many OE cross-references to support structural repairs across Porsche generations. The suspension cross member supports lower control arms, the steering assembly and drivetrain mounts, distributes loads into the chassis and helps retain correct suspension geometry under braking, cornering and acceleration, contributing to handling precision and occupant comfort.
- Restores and preserves correct suspension alignment and vehicle geometry
- Improves handling stability and steering response by maintaining torsional rigidity
- Reduces vibration and structural noise through correct mounting and isolation
- Uses corrosion-resistant finishes or suitable alloys for longevity
- Corrosion from road salt, moisture and debris that attacks structural metal
- Impact damage from kerbs, potholes or collisions that bend or crack members
- Metal fatigue and stress cracking after years of loading and use
- Worn or failing mounting bushes, bolts and brackets that allow movement and misalignment
- Previous repairs or chassis distortion that alter geometry and load paths
Replacing a degraded or damaged cross member restores chassis alignment, corrects suspension geometry and helps ensure predictable handling. Choosing a replacement designed for Porsche applications reduces the need for corrective alignment work and supports reliable attachment of steering and drivetrain components. For safety and ride quality, a structurally sound cross member is fundamental to effective braking, steering and tyre wear management.
Advantages- Engineered mounting points that match factory locations and maintain alignment
- High-strength materials and corrosion protection for long service life
- Complete mounting kits available to renew bushes, bolts and fixings
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Anti Roll Bar Bushes
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Anti Roll Bar Bracket
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Drop Links & Bushes FRONT
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Drop Links & Bushes REAR
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Shock Absorbers FRONT
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Shock Absorber Parts FRONT
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Shock Absorbers REAR
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Shock Absorber Parts REAR
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Track Control Arms FRONT
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Track Control Arm REAR
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Wheel Bearings & Kits
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Wheel Hub / Carrier
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Side section / Sub frame
