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Rear coil spring spacer. Porsche 991.1 / 991.2 - 99133351100
99133351100
Vehicle Group
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
Information
Rear coil spring spacer
This Porsche Genuine OE Rear Coil Spring Spacer is an original factory rear suspension spring spacer / insulator insert designed for Porsche 911 (991.1 and 991.2) models. Installed within the rear suspension assembly, this component sits between the coil spring and suspension mounting surface to provide correct positioning, vibration isolation, and load distribution. Porsche also refers to this part as a spring insert, spring seat, or spring insulator.
Sold individually, 2 required - fits left or right suspension strut
Fits:
Porsche 991.1 Carrera 2012 - 2016
Porsche 991.2 Carrera 2017 - 2019
Porsche 991.1 Turbo 2014 - 2016*
* option code: 352 - Electronic damper control for PASM and PDCC
* option code: 475 - PASM electronic damper control
Porsche 991.1 Turbo 2017-20
Diagram ref no 4
The rear coil spring spacer cushions and isolates the coil spring from the suspension mounting points, helping reduce vibration and suspension noise while ensuring proper spring alignment.
It also helps maintain the correct ride height and suspension geometry by distributing load evenly through the rear suspension assembly.
Functions & Technical Role
• Spring insulation: Reduces vibration and noise transfer through the suspension
• Load distribution: Supports proper seating of the rear coil spring
• Ride height support: Helps maintain correct suspension geometry
• Suspension protection: Reduces stress between spring and mounting surfaces
• OEM precision: Engineered to Porsche specifications for exact fitment and durability
Fitment / Position on car
• Fitting position: Rear axle
• Location: Rear coil spring / shock absorber assembly
• Side: Left = Right
• System: Rear suspension and damping system
The spring spacer helps reduce suspension vibration and prevents metal-to-metal contact between the coil spring and mounting surfaces. It also supports correct ride height and suspension performance.
When to replace
• Suspension noise or creaking from the rear axle
• Collapsed, cracked, or worn spring insulator
• Uneven spring seating or ride height
• During rear suspension or shock absorber overhaul
• Excessive vibration transferred into the chassis
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99133351100
The product you are viewing cross references to these numbers
This Porsche Genuine OE Rear Coil Spring Spacer is an original factory rear suspension spring spacer / insulator insert designed for Porsche 911 (991.1 and 991.2) models. Installed within the rear suspension assembly, this component sits between the coil spring and suspension mounting surface to provide correct positioning, vibration isolation, and load distribution. Porsche also refers to this part as a spring insert, spring seat, or spring insulator.
Sold individually, 2 required - fits left or right suspension strut
Fits:
Porsche 991.1 Carrera 2012 - 2016
Porsche 991.2 Carrera 2017 - 2019
Porsche 991.1 Turbo 2014 - 2016*
* option code: 352 - Electronic damper control for PASM and PDCC
* option code: 475 - PASM electronic damper control
Porsche 991.1 Turbo 2017-20
Diagram ref no 4
The rear coil spring spacer cushions and isolates the coil spring from the suspension mounting points, helping reduce vibration and suspension noise while ensuring proper spring alignment.
It also helps maintain the correct ride height and suspension geometry by distributing load evenly through the rear suspension assembly.
Functions & Technical Role
• Spring insulation: Reduces vibration and noise transfer through the suspension
• Load distribution: Supports proper seating of the rear coil spring
• Ride height support: Helps maintain correct suspension geometry
• Suspension protection: Reduces stress between spring and mounting surfaces
• OEM precision: Engineered to Porsche specifications for exact fitment and durability
Fitment / Position on car
• Fitting position: Rear axle
• Location: Rear coil spring / shock absorber assembly
• Side: Left = Right
• System: Rear suspension and damping system
The spring spacer helps reduce suspension vibration and prevents metal-to-metal contact between the coil spring and mounting surfaces. It also supports correct ride height and suspension performance.
When to replace
• Suspension noise or creaking from the rear axle
• Collapsed, cracked, or worn spring insulator
• Uneven spring seating or ride height
• During rear suspension or shock absorber overhaul
• Excessive vibration transferred into the chassis
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99133351100
99133351100
The product you are viewing cross references to these numbers
Price: €45.01
In stock
Related products
Vehicle Group
- 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 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Information
Shock absorber mount ring
4 required, Price is for each.
REAR
Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1950-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 41
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133352100
The product you are viewing cross references to these numbers
4 required, Price is for each.
REAR
Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1950-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 41
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133352100
91133352100
The product you are viewing cross references to these numbers
Price: €6.57
In stock
Vehicle Group
- 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 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Information
Shock Absorber Hexagon Nut M 10 X 1.
REAR
Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1955-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 43
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90008401302
The product you are viewing cross references to these numbers
REAR
Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1955-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 43
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90008401302
90008401302
The product you are viewing cross references to these numbers
Price: €2.46
Orderable
Vehicle Group
- 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 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Information
Shock Absorber Washer. Porsche 911/912 / 356
REAR
Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1955-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 44
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133352300
The product you are viewing cross references to these numbers
REAR
Fits:
Porsche 911 1965-89
Porsche 912 1965-69
Porsche 356 1955-65
Click 'Zoom in' for large parts diagram.
Diagram ref no 44
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133352300
91133352300
The product you are viewing cross references to these numbers
Price: €7.94
Arriving soon