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Porsche 912E 4CYL 1976 Suspension & Axle

Cross Member & Parts

Cross Member & Parts

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Front control arm bushing kit. Porsche 911/912/914 - 90134142102, 90134142103, 90134142104 - URO-004044
1
Front control arm bushing kit. Porsche 911/912/914
91134190999
Product Information
Product Information
Standard Rubber Front Control Arm Bushings.

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:

  • Clunking or knocking from the front suspension
  • Noise when driving over bumps
  • Knocking during braking or acceleration
  • Vague or imprecise steering
  • Vehicle wandering on the road
  • Reduced straight-line stability
  • Steering requiring frequent correction
  • Front-end movement under braking
  • Steering-wheel vibration or shimmy
  • Uneven front tyre wear
  • Changes in wheel alignment
  • Reduced steering precision
  • Front suspension feeling loose
  • Visible cracking in the rubber
  • Rubber separating from its mounting surface
  • Bushings becoming hard or distorted
  • Control arm visibly moving excessively within its mount

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
90134142102
90134142103
90134142104

The product you are viewing cross references to these numbers
Hexagon-Head bolt for Rear suspension cross member. Porsche 996 / 997 - 90037813901, 90037813909
4
Hexagon-Head bolt for Rear suspension cross member. Porsche 996 / 997
Special Order item
90037813901
Product Information
Product Information
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


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90037813901
90037813901
90037813909

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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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