Spring Plate
Rear spring plate bushing set (Heavy Duty). Porsche 911 / 930 / 912
- 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 912E 4CYL 1976
Includes 4x Heavy Duty rubber softness spring plate bushings (w/ 80-85 shore A)
Outer dia: 75mm
Inner dia: 48mm
Thicknes: 42mm
Fits:
Porsche 911 1968-89
Porsche 912 1968-69
Porsche 912 1976
Porsche 930 1978-79
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91133300900BHD
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Rear spring plate bushing set (Standard). Porsche 911 / 930 / 912
- 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 912E 4CYL 1976
Includes 4x Standard rubber softness spring plate bushings (w/ 55-60 shore A)

Outer dia: 75mm
Inner dia: 48mm
Thicknes: 42mm
Fits:
Porsche 911 1968-89
Porsche 912 1968-69
Porsche 912 1976
Porsche 930 1978-79
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91133300900B
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Rear spring plate rubber bush. Porsche 911 1965-67
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Fits:
Porsche 911 1965-67
Diagram Ref No. 26
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90133319500
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Rear spring plate rubber bush. Porsche 911 1965-67 - 90133319500
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Fits:
Porsche 911 1965-67
Diagram ref no. 26
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90133319500
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Rear trailing arm to spring plate eccentric bolt. Porsche 911 65-73
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911/912 1965-73
Diagram ref no 27
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90133313310
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Rear trailing arm to spring plate eccentric bolt. Porsche 911 65-73
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Price is each.
Fits:
Porsche 911/912 1965-73
Diagram ref no 27
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90133313310
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Rear trailing arm to spring plate eccentric bolt. Porsche 911 65-89
- 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)
Price is each.
Fits:
Porsche 911/912 1965-89
Porsche 911 (930) 1975-89
Diagram ref no 28
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90133313305
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Rear trailing arm to spring plate eccentric bolt. Porsche 911 65-89
- 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)
Price is each.
Fits:
Porsche 911/912 1965-89
Porsche 911 (930) 1975-89
Diagram ref no 28
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90133313305
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Rear Trailing Arm to Spring Plate Hexagon Nut. Porsche 356 / 911
- 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 1975-1977 3.0L Turbo (930)
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 B / 356 C
Porsche 911 1965-83
Porsche 911 Turbo 1975-77
Click 'Zoom in' for large parts diagram.
Diagram ref no 28.
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90003403601
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Spacer ring for rear axle. Porsche 911 1965-77
- 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
Fits:
Porsche 911 2.0-3.0 01/63-07/77
Porsche 912 1.6 01/65-02/70
Diagram Ref No 32
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90133110700
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Spacer ring for rear axle. Porsche 911 1965-77
- 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
Fits:
Porsche 911 2.0-3.0 01/63-07/77
Porsche 912 1.6 01/65-02/70
Diagram Ref No 32
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90133110700
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Spring plate / torsion bar cover. Porsche 911 1965-89
- 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
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90133315300
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Spring plate / torsion bar cover. Porsche 911 1965-89
- 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
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90133315300
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Spring Plate Bush Competition HD. Porsche 911 SuperPro
- 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)
Replacement for Porsche parts No. 91133300900
SET OF 4

Fits:
Porsche 911 1974-89
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components.
Click 'Zoom in' for large parts diagram.
Fits to No. 16 on the diagram.
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SPF0242K
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Spring Plate Bush. Porsche 911 1965-67 Powerflex
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
SET OF 4

Fits:
Porsche 911 1965-67
Fits to No. 16 on the diagram.
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components.
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PFR57-411
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Spring Plate Bush. Porsche 911 1965-67 Powerflex Black Series
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
SET OF 4

Fits:
Porsche 911 1965-67
Fits to No. 16 on the diagram.
Powerflex Black Series - Designed for the Track - Ready to Race - Engineered to be the best.
Powerflex Black Series bushes are manufactured using a 95 Shore A compound to provide maximum control of chassis geometry. This compound can be up to 80% more resistant to load than standard rubber and 25% stiffer than our purple performance material.
If your requirements are purely for the ultimate in handling and chassis performance then Powerflex Black Series are unique, offering the most precise and accurate alignment for your chassis.
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsitive steering
- Longer service life of suspension components.
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PFR57-411BLK
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Porsche Spring Plates | Design911 Suspension Components for Ride Height, Alignment & Stability
Spring plates are a critical part of your Porsche’s rear suspension system, connecting the torsion bars to the trailing arms and helping manage suspension travel and ride height. They act as pivot points that absorb energy during acceleration, braking, and cornering — ensuring smooth movement and maintaining chassis balance. Properly functioning spring plates preserve suspension geometry, enhance grip, and provide the responsive handling Porsche is known for.
At Design911, we supply a complete range of spring plates and components, engineered for precision, strength, and long-lasting performance. Manufactured from high-quality steel or performance-grade alloys, our spring plates deliver exact fitment and reliable operation under all driving conditions. Ideal for servicing, classic restorations, or performance tuning, they help maintain stability, comfort, and control across your Porsche’s suspension system.
What Do Spring Plates Do?
Spring plates play a vital role in controlling the movement and alignment of the rear suspension, ensuring even weight distribution and consistent handling.
Core Functions:
• Connect torsion bars to trailing arms for proper suspension movement.
• Regulate ride height and suspension travel.
• Maintain consistent rear wheel alignment under load.
• Absorb road impact to enhance ride comfort and grip.
• Provide smooth suspension articulation for balanced handling.
In perfect condition, spring plates ensure your Porsche remains stable, comfortable, and responsive — on both the road and track.
Why Do Spring Plates Fail or Degrade?
Due to constant movement, load stress, and environmental exposure, spring plates are subject to wear and corrosion over time.
Common Causes of Failure Include:
• Corrosion or rust weakening the plate material.
• Worn bushes or mounts causing excess play and vibration.
• Fatigue cracks from continuous torsional stress.
• Impact damage from potholes or aggressive driving.
• Incorrect alignment or ride height adjustments.
When spring plates fail, you may notice uneven ride height, poor alignment, or rear-end instability — clear signs that replacement is needed to restore balance and safety.
Why Replace or Upgrade Your Porsche Spring Plates?
Replacing worn or damaged spring plates restores suspension geometry, alignment accuracy, and overall handling performance. Upgraded plates offer improved adjustability and durability — ideal for performance builds or track preparation.
Key Benefits:
• Restores correct suspension geometry and rear alignment.
• Improves ride height consistency and handling stability.
• Reduces vibration, noise, and rear-end movement.
• Available in adjustable or fixed designs for various Porsche models.
• Fits Porsche 911, 912, 914, 944, and classic air-cooled models.
• Perfect for restoration, servicing, or motorsport applications.
Design911’s Porsche spring plates combine precision engineering and long-lasting performance — ensuring your Porsche handles with the strength and stability it was designed for.
Highlights
• Premium Porsche spring plates and related suspension
components.
• High-strength steel or performance alloy construction.
• Restores alignment, ride height, and suspension balance.
• Available in adjustable and performance variants.
• Suitable for both classic and modern Porsche models.
• Perfect for servicing, performance tuning, or full restoration projects.