Foam seal front torsion bar adjuster. Porsche 911 1965 to 1989  ❭  90134147500

Chrome Moly Light Weight Hollow Front Torsion Bar (SET OF 2)
- 21mm
- 22mm

Tighten up your suspension with these high precision, light weight, hollow torsion bars.

Fabricated from aircraft quality 4130 chrome moly steel, and heat treated for high strength and reliability.

Zinc plated with plugged ends for superior corrosion resistance.

Precision machined splined ends for a perfect fit.

Center less ground and gun drilled for a consistent spring rate.

Lighter weight compared to solid bars with an equivalent stiffness. Up to 3 lbs lighter per bar!

These are the highest quality bars on the market.

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Related, superseded, cross reference or alternative numbers for comparison.

1S166911F

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Light weight hollow rear torsion bar.  (SET OF 2)

Fits:
Porsche 911 65-86 Rear

Available in 7 sizes:

- 25mm
- 26mm

- 27mm

- 28mm
- 29mm
- 31mm
- 33mm

Tighten up your suspension with these high precision, light weight, hollow torsion bars.

Fabricated from aircraft quality 4130 chrome moly steel, and heat treated for high strength and reliability.

Zinc plated with plugged ends for superior corrosion resistance.

Precision machined splined ends for a perfect fit.

Centre less ground and gun drilled for a consistent spring rate.

Lighter weight compared to solid bars with an equivalent stiffness. Up to 3 lbs lighter per bar!

These are the highest quality bars on the market.

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Related, superseded, cross reference or alternative numbers for comparison.

1S166911R

The product you are viewing cross references to these numbers

Torsion Bar Protective Clamp 
Sold each

Maintain the integrity of your classic Porsche suspension with this OE Match Torsion Bar Protective Clamp. Manufactured to the original factory specification, this is designed to securely retain and protect the torsion bar assembly, ensuring reliable operation and long-term durability.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)  Left or Right Side
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)  Left or Right Side
• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera  Right Side only
• Porsche 911 1978-1983 3.0L / SC  Right Side only
• Porsche 911 1984-1986 3.2L  Right Side only
• Porsche 911 1987-1989 3.2L G50  Right Side only
• Porsche 911 1975-1977 3.0L Turbo (930)  Right Side only
• Porsche 911 1978-1989 3.3L Turbo (930)  Right Side only

Diagram ref no 16

Although small, the torsion bar protective clamp is an important suspension component that helps keep the torsion bar correctly positioned while protecting surrounding components from movement and damage. Whether you're carrying out a complete suspension rebuild or replacing corroded original hardware, this OE Match replacement delivers factory-style fit and dependable performance.

What Does the Torsion Bar Protective Clamp Do?

The torsion bar protective clamp forms part of the rear suspension assembly.

Its primary functions include:

• Securing and protecting the torsion bar assembly.
• Helping retain the torsion bar in its correct position.
• Supporting correct alignment of suspension components.
• Reducing unwanted movement within the suspension assembly.
• Protecting adjacent components from wear caused by vibration.
• Contributing to the long-term reliability of the torsion bar system.

Using the correct clamp helps ensure the suspension functions as Porsche originally intended.

Why Does the Torsion Bar Protective Clamp Need Replacing?

After decades beneath the vehicle, the original clamp is exposed to harsh environmental conditions.

Common causes of deterioration include:

• Corrosion from road salt and moisture.
• Surface rust weakening the metal.
• Damage during suspension disassembly.
• Distortion caused by previous removal.
• Fatigue from years of vibration and road use.
• General ageing of original hardware.

A damaged or corroded clamp may no longer provide the correct support for the torsion bar assembly during suspension servicing or restoration.

When Should It Be Replaced?

Replacement is recommended when:

• Carrying out a torsion bar replacement.
• Rebuilding the rear suspension.
• The original clamp is corroded or damaged.
• Suspension components have been removed for servicing.
• Restoring the vehicle to factory specification.
• Completing a concours-quality restoration.
• Replacing worn or ageing suspension hardware.

Replacing original suspension hardware during a rebuild helps ensure reliable fitment and long-term durability.

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

90134115900

The product you are viewing cross references to these numbers