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O-ring wheel bearing spacer ring. Porsche 911 / 914 - 99970108450
99970108450/1
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 914 (1970-1976)
Information
O-ring wheel bearing spacer ring - 25,3 x 2,4
This OE Match O-ring is a replacement sealing ring used with the wheel bearing spacer ring on classic Porsche 911 and 914 models. It is designed to match the original-style fitment and provide a secure seal within the wheel bearing / hub assembly.
Sold each - 2 required per car
Fits:
Porsche 911 - 1965 to 1989
Porsche 914 - 1970 to 1976
Diagram ref no 23
The O-ring helps seal the spacer ring area in the wheel bearing assembly, preventing grease loss and helping keep dirt, moisture, and road debris away from the bearing components. A correct seal supports smooth wheel bearing operation and long-term hub reliability.
Functions
• Seals the wheel bearing spacer ring area
• Helps prevent bearing grease from escaping
• Helps protect wheel bearing components from dirt and moisture
• Supports correct wheel hub and bearing assembly
• Helps maintain smooth bearing operation
• Replaces hardened, flattened, cracked, or missing original O-rings
• OE Match replacement for wheel bearing and hub service work.
Why Replace This Part?
O-rings can harden, flatten, crack, swell, or perish over time due to age, grease exposure, heat, and road conditions. A worn or damaged O-ring may allow grease loss or contamination around the bearing spacer area, which can contribute to bearing wear, noise, or reduced service life. Replacing the O-ring during wheel bearing work helps restore a reliable seal.
When to Replace This Part
• The wheel bearing or spacer ring has been removed
• The original O-ring is cracked, flat, brittle, swollen, or missing
• Grease is leaking around the bearing spacer area
• Dirt or moisture has entered the hub/bearing assembly
• The wheel hub or rear axle assembly is being serviced
• Wheel bearing noise or wear is being investigated
• As preventative replacement during bearing or hub reassembly
Where it fits on the car
This O-ring fits in the wheel bearing / hub assembly, where it seals the wheel bearing spacer ring. Depending on the model and axle layout, it may be used in the rear hub or axle bearing area where part number 99970108450 is specified.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970108450
The product you are viewing cross references to these numbers
This OE Match O-ring is a replacement sealing ring used with the wheel bearing spacer ring on classic Porsche 911 and 914 models. It is designed to match the original-style fitment and provide a secure seal within the wheel bearing / hub assembly.
Sold each - 2 required per car
Fits:
Porsche 911 - 1965 to 1989
Porsche 914 - 1970 to 1976
Diagram ref no 23
The O-ring helps seal the spacer ring area in the wheel bearing assembly, preventing grease loss and helping keep dirt, moisture, and road debris away from the bearing components. A correct seal supports smooth wheel bearing operation and long-term hub reliability.
Functions
• Seals the wheel bearing spacer ring area
• Helps prevent bearing grease from escaping
• Helps protect wheel bearing components from dirt and moisture
• Supports correct wheel hub and bearing assembly
• Helps maintain smooth bearing operation
• Replaces hardened, flattened, cracked, or missing original O-rings
• OE Match replacement for wheel bearing and hub service work.
Why Replace This Part?
O-rings can harden, flatten, crack, swell, or perish over time due to age, grease exposure, heat, and road conditions. A worn or damaged O-ring may allow grease loss or contamination around the bearing spacer area, which can contribute to bearing wear, noise, or reduced service life. Replacing the O-ring during wheel bearing work helps restore a reliable seal.
When to Replace This Part
• The wheel bearing or spacer ring has been removed
• The original O-ring is cracked, flat, brittle, swollen, or missing
• Grease is leaking around the bearing spacer area
• Dirt or moisture has entered the hub/bearing assembly
• The wheel hub or rear axle assembly is being serviced
• Wheel bearing noise or wear is being investigated
• As preventative replacement during bearing or hub reassembly
Where it fits on the car
This O-ring fits in the wheel bearing / hub assembly, where it seals the wheel bearing spacer ring. Depending on the model and axle layout, it may be used in the rear hub or axle bearing area where part number 99970108450 is specified.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970108450
99970108450
The product you are viewing cross references to these numbers
Price: €1.24
In stock
Related products
Vehicle Group
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) RS 1994-97
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
Information
Shock Absorber Sealing Cap. FRONT
Fits:
Porsche 964 Carrera RS 1989-94
Porsche 993 Carrera RS 1994-98
Porsche 996 GT2 2001-05
Porsche 997 GT2 2007-09
Porsche 997 GT2-RS 2010>>
Porsche 996 GT3 1999-05
Porsche 997 GT3 2007-11
Porsche 991 GT2
Porsche 991 GT3 2014 - 2021
Click 'Zoom in' For large parts diagram.
Diagram ref no 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96434318680
The product you are viewing cross references to these numbers
Fits:
Porsche 964 Carrera RS 1989-94
Porsche 993 Carrera RS 1994-98
Porsche 996 GT2 2001-05
Porsche 997 GT2 2007-09
Porsche 997 GT2-RS 2010>>
Porsche 996 GT3 1999-05
Porsche 997 GT3 2007-11
Porsche 991 GT2
Porsche 991 GT3 2014 - 2021
Click 'Zoom in' For large parts diagram.
Diagram ref no 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96434318680
96434318680
The product you are viewing cross references to these numbers
Price: €5.96
In stock
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- 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
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
Information
Shock absorber upper strut mount. Front.
Fits:
Porsche 991.1 C2 / C2S / C4 / C4S 2012-16
Porsche 991.2 C2 / C2S / C4 / C4S 017>>
Porsche 991 Turbo 2014>>
Porsche 981 Boxster 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 981C Cayman 2014-16
Porsche 982C Cayman 2017>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134301502
The product you are viewing cross references to these numbers
Fits:
Porsche 991.1 C2 / C2S / C4 / C4S 2012-16
Porsche 991.2 C2 / C2S / C4 / C4S 017>>
Porsche 991 Turbo 2014>>
Porsche 981 Boxster 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 981C Cayman 2014-16
Porsche 982C Cayman 2017>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134301502
99134301502
The product you are viewing cross references to these numbers
Price: €427.69
In stock
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- 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
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
Information
Front shock absorber bump stop.
The Genuine OE Porsche front shock absorber bump stop, part number 99134330103, is an original Porsche suspension component designed to protect the front shock absorber assembly from excessive compression under heavy suspension load. Installed on the front suspension strut, this high-quality polyurethane/rubber stop acts as a secondary cushioning element, helping to prevent metal-to-metal contact during aggressive driving, hard braking, uneven road surfaces, or full suspension travel.
Sold individually, 2 required - fits left or right suspension strut
Fits:
Porsche 981 Boxster 2012 - 2016 cars with PASM
Porsche 981C Cayman 2014 - 2016 cars with PASM
Porsche 982 Boxster 2017>> cars with PASM
Porsche 982C Cayman 2017>> cars with PASM
Porsche 991.1 Carrera / Turbo 2012 - 2016 cars with PASM (excluding standard and sport type chassis)
Porsche 991.2 Carrera / Turbo 2017 - 2019 cars with PASM (excluding standard and sport type chassis)
Diagram ref no 6
This component is essential for maintaining ride quality, suspension stability, and correct shock absorber operation. Over time, bump stops can deteriorate due to heat cycles, age, moisture, and repeated suspension compression, leading to cracking, collapse, or reduced cushioning performance. Replacing worn bump stops helps restore proper suspension protection and ensures the shock absorber can operate correctly throughout its full range of movement.
Functions & Technical Role
• Protects the front shock absorber during full suspension compression
• Prevents harsh bottoming-out impacts
• Helps maintain correct suspension geometry under load
• Reduces shock absorber and strut damage caused by excessive travel
• Assists with vibration damping and ride refinement
• Supports optimal PASM suspension performance
• OE-quality material construction for long-term durability
Fitment / Position on car
• Front suspension
• Fits left or right side
• Mounted on the front shock absorber/strut assembly
The front bump stop is a critical protective component within the Porsche suspension system. During heavy cornering, sudden impacts, aggressive driving, or rough road conditions, the suspension can compress rapidly. Without a properly functioning bump stop, excessive suspension travel can damage the shock absorber, strut mount, spring assembly, and other suspension components.
A deteriorated or collapsed bump stop may also lead to harsh suspension noises, reduced ride comfort, poor damping control, and premature shock absorber wear. Replacing worn bump stops with Genuine Porsche components helps maintain factory suspension performance, protects expensive suspension hardware, and preserves the precise handling characteristics Porsche vehicles are known for.
When to replace. Replace the front shock absorber bump stop if you notice:
• Cracked, split, or crumbling rubber material
• Suspension knocking or bottoming-out noises
• Excessive harshness over bumps
• Oil leaks or damage around the shock absorber
• Suspension overhaul or shock absorber replacement
• Visible compression damage or deterioration
• Reduced suspension damping performance
• High mileage or ageing suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134330103
The product you are viewing cross references to these numbers
The Genuine OE Porsche front shock absorber bump stop, part number 99134330103, is an original Porsche suspension component designed to protect the front shock absorber assembly from excessive compression under heavy suspension load. Installed on the front suspension strut, this high-quality polyurethane/rubber stop acts as a secondary cushioning element, helping to prevent metal-to-metal contact during aggressive driving, hard braking, uneven road surfaces, or full suspension travel.
Sold individually, 2 required - fits left or right suspension strut
Fits:
Porsche 981 Boxster 2012 - 2016 cars with PASM
Porsche 981C Cayman 2014 - 2016 cars with PASM
Porsche 982 Boxster 2017>> cars with PASM
Porsche 982C Cayman 2017>> cars with PASM
Porsche 991.1 Carrera / Turbo 2012 - 2016 cars with PASM (excluding standard and sport type chassis)
Porsche 991.2 Carrera / Turbo 2017 - 2019 cars with PASM (excluding standard and sport type chassis)
Diagram ref no 6
This component is essential for maintaining ride quality, suspension stability, and correct shock absorber operation. Over time, bump stops can deteriorate due to heat cycles, age, moisture, and repeated suspension compression, leading to cracking, collapse, or reduced cushioning performance. Replacing worn bump stops helps restore proper suspension protection and ensures the shock absorber can operate correctly throughout its full range of movement.
Functions & Technical Role
• Protects the front shock absorber during full suspension compression
• Prevents harsh bottoming-out impacts
• Helps maintain correct suspension geometry under load
• Reduces shock absorber and strut damage caused by excessive travel
• Assists with vibration damping and ride refinement
• Supports optimal PASM suspension performance
• OE-quality material construction for long-term durability
Fitment / Position on car
• Front suspension
• Fits left or right side
• Mounted on the front shock absorber/strut assembly
The front bump stop is a critical protective component within the Porsche suspension system. During heavy cornering, sudden impacts, aggressive driving, or rough road conditions, the suspension can compress rapidly. Without a properly functioning bump stop, excessive suspension travel can damage the shock absorber, strut mount, spring assembly, and other suspension components.
A deteriorated or collapsed bump stop may also lead to harsh suspension noises, reduced ride comfort, poor damping control, and premature shock absorber wear. Replacing worn bump stops with Genuine Porsche components helps maintain factory suspension performance, protects expensive suspension hardware, and preserves the precise handling characteristics Porsche vehicles are known for.
When to replace. Replace the front shock absorber bump stop if you notice:
• Cracked, split, or crumbling rubber material
• Suspension knocking or bottoming-out noises
• Excessive harshness over bumps
• Oil leaks or damage around the shock absorber
• Suspension overhaul or shock absorber replacement
• Visible compression damage or deterioration
• Reduced suspension damping performance
• High mileage or ageing suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134330103
99134330103
The product you are viewing cross references to these numbers
Price: €50.80
In stock