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Cross Member & Parts
Fits:
Porsche 911 - 1965 to 1989
Porsche 911 turbo - 1975 to 1989
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134147500
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Sold each - 2 required per car
Fits:
Porsche 911 - 1965 to 1989
Porsche 911 turbo - 1975 to 1989
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134147500
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 1965-89
Porsche 930 1975-89
Porsche 914 1970-76
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134101310
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
The 911 341 013 10 is an aluminium front cross-member, also known as an auxiliary support. Its primary function is to carry suspension loads and maintain proper alignment of the front control arms, steering rack, and related substructures.
On vehicles originally equipped with a steel cross-member, converting to this aluminium version requires two additional mounting brackets (part number 911 341 031 01) for proper installation. In essence, this part is a structural component of the front end that directly supports suspension geometry and ensures stable alignment.
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Technical / Material Considerations & Properties
Weight savings: Aluminium is significantly lighter than steel. The use of aluminium here reduces the sprung mass (mass carried by the suspension) which can improve responsiveness in handling. Mounting hardware & bushings:
The aluminium cross-member is only as good as its mounting points, brackets, and isolating bushings. Bolts, washers, cups, and bushes must be properly specified (torques, pre-load, orientation) to avoid introducing stress concentrations or deforming the part.
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134101310
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Fits:
Porsche 911 (not Turbo) 2.7-3.2 08/73-07/89
Click 'Zoom in' for large parts diagram.
Diagram ref no. 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134116105
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Fits:
Porsche 911 Carrera 1974-89
Click 'Zoom in' for large parts diagram.
Diagram ref no. 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134116105
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
The OE Match Standard Rubber Front Control Arm Bushings are replacement suspension bushings for the front lower control arms, also commonly referred to as A-arms, on selected classic Porsche models.
Fits:- Porsche 911 1969 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
- Porsche 912E 4CYL 1976
Fits To Diagram Ref No 14
The bushings provide the flexible mounting points between the front control arms and the vehicle chassis. Their rubber construction allows the suspension arms to move through their normal operating range while absorbing vibration and controlling unwanted fore-and-aft or lateral movement.
Unlike harder polyurethane, solid or competition-style bushings, these standard rubber bushings are intended to retain a factory-style balance of ride comfort, noise isolation and suspension compliance.
They are particularly suitable for road cars, restorations and vehicles where maintaining original Porsche suspension characteristics is preferred.
What This Product Does:
The front control arms locate the front wheels and help maintain the suspension geometry as the wheels move over bumps, during cornering and under braking.
The control arm bushings sit between the arms and their chassis mounting points.
Their functions include:
- Supporting the front lower control arms
- Allowing controlled suspension movement
- Absorbing road shock and vibration
- Reducing noise and harshness transmitted into the chassis
- Controlling unwanted movement of the A-arms
- Helping maintain stable wheel alignment
- Supporting predictable steering response
- Maintaining front suspension geometry under braking and cornering
- Providing a compliant pivot point for suspension movement
Healthy bushings allow the control arms to move in the intended direction while resisting movement that could disturb wheel alignment.
Symptoms Of Wear Or Failure:
Common symptoms of worn front control arm bushings include:
Because several suspension components can create similar symptoms, the complete front suspension should be inspected before replacement.
Why Replacement Matters:
Worn control arm bushings allow the suspension arms to move more than intended.
This can alter wheel position dynamically as the vehicle is driven.
Excessive control-arm movement may contribute to:
- Unstable steering
- Poor wheel alignment
- Uneven tyre wear
- Reduced braking stability
- Less predictable handling
- Increased suspension noise
- Additional stress on surrounding suspension components
Replacing deteriorated bushings restores controlled suspension-arm movement and helps return the vehicle to its intended steering and handling characteristics.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134190999
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
- Porsche 912E 4CYL 1976
Fits:
Porsche 912 1968-69
Porsche 911 S/TU/L 1968
Porsche 911 T/E/S 1969-73
Porsche 911 1974-89
Porsche 911 (930) Turbo 1975-89
Porsche 914-6 1970-76
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134103301
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Fits:
Porsche 912 1968-69
Porsche 911 S/TU/L 1968
Porsche 911 T/E/S 1969-73
Porsche 911 1974-89
Porsche 911 (930) Turbo 1975-89
Porsche 914-6 1970-76
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90134103301
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
Fits:
Porsche 911 1974-89
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134103101
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 914 (1970-1976)
Fits:
Porsche 911 1974-89
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134103101
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 914 (1970-1976)
Genuine Porsche front crossmember reverse lever adjusting screw is used as part of the front torsion bar suspension assembly for setting and maintaining suspension geometry and preload.
Sold each, 2 required per vehicle.
Fits:
Porsche 912 1969
Porsche 911 T/E/S 1969 - 1973
Porsche 911 1974 - 1989
Porsche 911 (930) Turbo 1975 - 1989
Porsche 914 1970 - 1976
Diagram ref no 20
The front crossmember reverse lever adjusting screw enables precise calibration of the torsion bar settings and front suspension geometry. It threads into the reverse lever to set the correct preload on the torsion bars and helps establish the proper ride height and alignment. Accurate adjustment of this screw is essential for achieving balanced handling, even tyre wear, and responsive steering.
Function:
Installed on the front suspension crossmember, the adjusting screw:
• Secures and adjusts the reverse lever position
• Sets torsion bar preload
• Helps maintain correct ride height and alignment
• Ensures stable, consistent front suspension dynamics
As an OE item, it is made from materials that meet Porsche’s mechanical strength and wear criteria, ensuring long-term reliability even under repeated adjustments and road stresses.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134111502
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
This is an replacement adjusting screw for the front crossmember reverse lever - a critical component in the torsion bar suspension system of classic Porsche vehicles. Its mounted on the front crossmember to calibrate the reverse lever position and torsion bar preload.
Sold each, 2 required per vehicle.
Fits:
Porsche 912 1969
Porsche 911 T/E/S 1969 - 1973
Porsche 911 1974 - 1989
Porsche 911 (930) Turbo 1975 - 1989
Porsche 914 1970 - 1976
Diagram ref no 20
The front crossmember reverse lever adjusting screw provides fine-tuning of the reverse lever assembly on the front suspension crossmember. It enables precise adjustment of the torsion bar preload and suspension geometry, which affects ride height, wheel alignment, and handling balance.
This screw works within the front crossmember mechanism to establish the correct positioning of the reverse lever, which in turn ensures that the torsion bars and lever arms are calibrated accurately to support the vehicle’s weight and suspension movements.
The front suspension crossmember and associated reverse lever mechanism play a key role in how the vehicle’s torsion bars and front suspension geometry behave. A worn, damaged, or incorrect adjusting screw can cause:
• Improper torsion bar preload
• Uneven or incorrect ride height
• Poor alignment and handling issues
• Uneven tyre wear
• Steering imbalance
Replacing a worn or corroded component restores proper adjustment capability, enhances suspension accuracy, improves handling response, and helps maintain original suspension setup.
Replace this adjusting screw if:
• Threads are damaged, corroded, or worn
• Adjustment becomes difficult or imprecise
• You’re performing front suspension removal or rebuild
• Ride height or alignment cannot be correctly set
• Front crossmember or torsion bar work is underway
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134111502
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
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
The product you are viewing cross references to these numbers
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.