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Porsche // 997 (911) MK1 2005-2008 // Any
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SET OF 2
We strongly recommend replacing coil springs in pairs.
Fits:
Porsche 992.1 (911) Carrera 2 / 2S / GTS 2019 - 2024
Porsche 992.2 (911) Carrera 2 / GTS 2024 >>
* For cars with and without adaptive suspension
* For cars with Comfort equipment (option code: A8C)
* For cars with Sports equipment (option code: A8F)
* For cars with Suspension/shock absorption, Standard 2 (option code: 1BH)
Diagram ref no 5
This spring set supports the full front axle load and controls suspension movement during braking, acceleration, and cornering. Replacing both front springs together ensures even load distribution, symmetrical ride height, and predictable handling characteristics.
Installed between the lower control arms and front strut assemblies, the coil springs compress and rebound with suspension travel. Working as a matched pair, they absorb road impacts, stabilise the vehicle body, and help maintain consistent tyre contact for confident steering response and ride comfort.
Coil springs weaken and sag over time due to constant load, mileage, and road conditions. Replacing only one spring can result in uneven ride height and compromised handling. Installing a pair ensures balanced suspension geometry, restored factory stance, and predictable driving dynamics.
Replace this part if you experience any of the following:
• Uneven or sagging front ride height
• Excessive body roll or unstable handling
• Cracks, corrosion, or visible spring fatigue
• Suspension overhaul, shock absorber replacement, or alignment work
• After significant mileage or heavy track/road use
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
992411105504
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Suitable for models equipped with a manual transmission (PR 480) or Tiptronic transmission (PR 249), as well as PASM (PR 475).
Porsche 997-1 Carrera 4 Coupe 2005-08
Porsche 997-1 Carrera 4S Coupe 2005-08
Porsche 997-1 Carrera 4 Cabriolet 2005-08
Porsche 997-1 Carrera 4S Cabriolet 2005-08
NOTE: These springs are not suitable for Targa models.
Diagram ref. 4.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99734353339504
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
The springs are priced / boxed as a pair
Fits:
Porsche 997 C2S COUPE
Porsche 997 C2 COUPE
cars with "PASM" electronic damper control
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99734353142504
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
The springs are priced / boxed as a pair
Identification paint coloured marking: brown / white covers part numbers 99734353300504, 99734353337504.
Fits:
Porsche 997.1 C4 2005-08 COUPE / CABRIO
cars with standard chassis
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99734353337504
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
The springs are priced / boxed as a pair
Identification paint coloured marking Blue / Silver.
Fits:
Porsche 997.1 Targa 4/4S 2007>>
cars with PASM electronic damper control (option code: 475)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99734353342504
The product you are viewing cross references to these numbers