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Torsion Bar
By OE Match
- Porsche 356B 1959-63
This black OE Match rear torsion bar cover is intended for the torsion-bar and spring-plate assembly fitted to applicable Porsche 356 models. Its open-centre design accommodates the round outer bushing and provides access to the end of the torsion-bar assembly.
Fits
Porsche 356 1950–65
Porsche 356A 1955–59
Porsche 356 B T5 1.6L 12/1959–08/1961
Porsche 356B / 356C 1960–65, where the open cover is specified
Check fitment for your specific vehicle (model, year, engine) before ordering.
What This Product Does
The cover fits to the rear axle housing around the spring plate and outer torsion-bar bushing. It helps retain the bushing in its working position while shielding the surrounding mounting area from road dirt and moisture. Correct installation supports consistent spring-plate location and suspension geometry.
Functions
- Secures the outer round bushing at the rear spring plate.
- Covers the torsion-bar housing and adjacent mounting area.
- Provides centre access through the open cover design.
- Supports correct spring-plate positioning.
- Fits either the left or right side of the rear axle assembly.
Technical Details
- Component type: rear torsion-bar or spring-plate cover.
- Configuration: open cover with centre hole.
- Finish colour: black.
- Bushing profile: round.
- Installation position: rear axle, left or right.
- Vehicle quantity: two covers are shown in the relevant factory assembly diagrams.
Symptoms of Fault
- Corrosion, cracking or distortion around the cover.
- Movement at the spring plate or outer bushing.
- Knocking or clunking from the rear suspension over uneven surfaces.
- Perished, compressed or displaced supporting rubber.
- Difficulty maintaining the intended rear ride height or alignment.
- Damaged or seized mounting hardware around the cover plate.
Why Replacement Matters
A damaged or heavily corroded cover may no longer locate the outer bushing correctly. Renewal during a rear suspension overhaul helps restore the assembly and prevents a worn cover from being refitted with new bushes or related hardware. Inspect the spring plate, bushing, torsion bar and fasteners at the same time, as noise or movement may involve more than one component. Alignment and ride height should be checked after substantial torsion-bar or spring-plate work.
OE Reference
- 64433315101
- 8152250900
- 113511227B
- 511201002OE
FAQs
- Is this an open or closed cover?
This is the open version, manufactured with a centre hole. - Can it be installed on either side?
Yes. The cover is specified for left- or right-hand rear installation, with two used on the vehicle. - Should the bushing be inspected during replacement?
Yes. Check the round outer bushing, spring plate and mounting hardware for wear, corrosion or damage before assembly. - Is alignment required afterwards?
An alignment and ride-height check is advisable if the spring plate, torsion bar or its adjustment has been disturbed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64433315101
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63
- Porsche 356C 1963-65
This OE match rubber bushing is a direct replacement for the original Porsche component used in the rear torsion bar suspension system of 356 models. Installed at the outer section of the torsion bar tube, it supports the spring plate while isolating vibrations and maintaining correct suspension alignment.
Sold individually, 2 required per vehicle
Fits:
Porsche 356 BT5-T6
Porsche 356 C
Diagram ref no 36
This bushing cushions the connection between the torsion bar spring plate and the chassis. It absorbs road vibrations and reduces metal-to-metal contact, helping maintain smooth suspension movement and ride comfort while preserving alignment.
Function
• Cushions and supports the rear spring plate at the torsion housing
• Absorbs vibration and road shock
• Maintains correct suspension alignment and geometry
• Prevents metal-to-metal contact within the suspension system
• Allows controlled torsion bar movement
Over time, rubber bushings degrade due to age, heat, and exposure to the elements. Worn bushings can cause excessive play, poor alignment, and increased vibration, negatively affecting ride quality and handling. Replacing them restores proper suspension function, improves comfort, and protects surrounding components.
When to replace
• Visible cracking, splitting, or hardening of rubber
• Excessive rear suspension play or noise
• Uneven ride height or alignment issues
• During suspension rebuild or restoration
• Signs of deterioration due to age or contamination
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64433313101
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63
- Porsche 356C 1963-65
This OE Match torsion bar cover without hole is a replacement rear suspension cover plate for Porsche 356C models. It is designed to match the original-style fitment and appearance, helping restore the correct finish and protection around the torsion bar area.
Fits:
Porsche 356 C
Diagram ref no 38
The torsion bar cover fits over the rear torsion bar access area and helps protect the suspension mounting components from dirt, moisture, and road debris. It also helps complete the correct OE-style look of the rear suspension / chassis area.
Functions
• Covers the rear torsion bar access area
• Helps protect the torsion bar and surrounding suspension components
• Helps prevent dirt, moisture, and debris entry
• Restores correct OE-style appearance
• Replaces missing, corroded, bent, or damaged original covers
• Suitable for chassis and suspension restoration
• OE Match replacement for Porsche 356C rear suspension repairs.
Why Replace This Part?
Torsion bar covers can become corroded, dented, bent, missing, or damaged over time due to road dirt, moisture, impact, age, or previous suspension work. A damaged or missing cover can leave the torsion bar area exposed and make the underside of the vehicle look incomplete. Replacing the cover helps restore protection, detail accuracy, and the correct classic Porsche finish.
When to Replace This Part
• The original torsion bar cover is missing
• The cover is rusty, bent, dented, cracked, or damaged
• The torsion bar or rear suspension has been removed or serviced
• The chassis or suspension area is being restored
• The cover no longer fits securely
• The underside detail is being returned to OE-style appearance
• The vehicle is undergoing Porsche 356C restoration.
Where it fits on the car
• This torsion bar cover fits at the rear torsion bar area on Porsche 356C models. It is used as a protective cover plate for the rear suspension torsion bar access point.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
69533315101
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
Click 'Zoom in' for large parts diagram.
Diagram ref no 36
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64433313100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Outer dia: 69mm
Inner dia: 48mm
Thickness: 31mm
Fits:
Porsche 356 pre-A / A 1950-1959
Porsche 356 B / C 1960-1965 (chassis >>131 720, >>154 229, >>88 663)
Porsche 911/912 1965-1967 (up to chassis #307325)
For 356 Pre-A, A, and B, 4 are required w/original covers, and 2 are required w/replacement covers. For all 356C models, 2 are required).
Diagram ref no 36Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64433313100
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356 A / B / C 1950-65
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64441204
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
