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Torsion Bar
By OE Match
- 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Related, superseded, cross reference or alternative numbers for comparison.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 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Lightweight Hollow Rear Torsion Bar – Porsche 911 G50
Transform the handling of your Porsche 911 G50 with these OE
Match Lightweight Hollow Rear Torsion Bars. Engineered for enthusiasts who
demand sharper handling, improved chassis balance and reduced weight, these
premium torsion bars are manufactured from aircraft-grade 4130 chrome
molybdenum steel and precision heat treated to deliver exceptional
strength, durability and consistent spring rates.
Fits:
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Designed as a direct replacement for the factory rear torsion bars, these lightweight hollow bars provide the same or greater stiffness as comparable solid bars while reducing unsprung weight by up to 3lbs (1.36 kg) per bar. The result is a more responsive suspension, improved traction and greater driver confidence whether you're driving on the road, fast road or circuit.
Available in different diameters, these torsion bars allow you to tailor your Porsche's suspension to suit your driving style and performance goals.
Available Sizes
Choose the torsion bar diameter best suited to your
suspension setup:
- 27mm
- 28mm
- 29mm
- 30mm
- 31mm
- 32mm
Larger diameters increase rear spring rates, improving body control and reducing chassis roll during aggressive driving.
What Do Rear Torsion Bars Do?
Rear torsion bars are the primary springing component of the classic Porsche 911 rear suspension.
They are responsible for:
- Supporting the weight of the rear of the vehicle.
- Controlling suspension movement.
- Maintaining correct ride height.
- Reducing body roll through corners.
- Improving traction and chassis stability.
- Working alongside the dampers to control suspension movement.
- Delivering the balance and handling characteristics the Porsche 911 is renowned for.
Selecting the correct torsion bar size allows the suspension to be tuned for road, fast road or motorsport applications.
Why Upgrade to Lightweight Hollow Torsion Bars?
These OE Match hollow torsion bars offer significant advantages over standard solid bars.
Benefits include:
- Up to 3 lbs (1.36 kg) lighter per bar than equivalent solid torsion bars.
- Reduced unsprung and rotational mass.
- Faster suspension response over uneven road surfaces.
- Improved steering feel and chassis balance.
- Increased cornering stability.
- More consistent suspension performance under high loads.
- Superior fatigue resistance for long service life.
The reduction in suspension weight allows the dampers to control wheel movement more effectively, resulting in greater grip and improved ride quality.
Premium Engineering & Construction
Manufactured using premium materials and precision machining techniques, these are among the highest-quality torsion bars available.
Features include:
- Manufactured from aircraft-quality 4130 chrome molybdenum steel.
- Heat treated for maximum strength and long-term reliability.
- Hollow gun-drilled construction for reduced weight without sacrificing stiffness.
- Centreless ground to ensure consistent diameter and spring rate.
- Precision-machined splined ends for an accurate OE-style fit.
- Zinc-plated finish with plugged ends for outstanding corrosion resistance.
- Precision engineered for consistent performance and durability.
Every component is manufactured to exacting tolerances to ensure exceptional quality and repeatable suspension performance.
When Should Rear Torsion Bars Be Upgraded?
Upgrading is recommended when:
- Improving the handling of your Porsche 911.
- Installing performance dampers.
- Lowering the vehicle.
- Rebuilding the rear suspension.
- Building a fast road or track-focused car.
- Replacing tired or corroded factory torsion bars.
- Increasing grip through wider tyres or suspension upgrades.
- Fine-tuning chassis balance for motorsport applications.
Replacing torsion bars during a suspension rebuild ensures all major wear components are renewed at the same time.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1S166911TR
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)
Fits:
Porsche 911 1965-89
Porsche 930 1975-77
Diagram Ref No. 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90133315300
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)
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
OEMatch Torsion Bar — Control, Stability, Comfort
Torsion bars are a key element of Porsche suspension, providing spring resistance that supports vehicle weight, controls ride height and helps manage wheel movement. OEMatch supplies torsion bars and related suspension hardware suitable for restoration, routine servicing and measured performance upgrades on Porsche models.
Available Types
- Road specification
- Sport specification
- Track specification
Understanding OEMatch Torsion Bar
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original torsion bars.
OE (Original Equipment) refers to parts matching original specifications for the torsion bars and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM torsion bars engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Torsion bars act as the primary spring in many Porsche suspension layouts. They twist along their axis when the wheels move, absorbing impact and controlling compression and rebound. Correct material selection and section diameter determine stiffness and longevity; careful installation and correct mounting hardware help preserve alignment and ride height. Torsion bars also allow incremental adjustment to fine-tune chassis balance.
Benefits Include
- Restores correct ride height and chassis balance
- Improves handling predictability and cornering stability
- Permits measured adjustment of suspension stiffness for road or track use
- Made from high-tensile spring steel for consistent resistance
Why Torsion Bar Wear and Fail
- Metal fatigue from repeated torsional loading
- Corrosion or pitting that reduces cross-section and strength
- Cracking caused by overload or impact
- Worn bushings or mounts that alter load distribution
The Importance of Replacing with OEMatch Torsion Bar
Replacing worn or damaged torsion bars restores ride height accuracy, alignment and predictable handling, which are important for Porsche models. Correctly sized replacements help maintain chassis geometry and vehicle balance; selecting the right specification supports restoration goals or tuned handling without introducing unintended stress to adjacent suspension components.
Advantages
- Direct-fit alternatives made to original-spec dimensions and tolerances
- Available in standard and performance diameters to suit intended use
- Manufactured from performance-grade spring steel for durability