OE Match with PASM
These replacement shock absorbers are compatible with PASM-equipped cars and include built-in cancellation resistors to eliminate dashboard errors. They effectively bypass the Active Suspension Management system, allowing the vehicle to function as though it has standard suspension installed.
Set includes:
1 × 99734304741 – OE Match Front shock absorbers (left)
1 × 99734304841 – OE Match Front shock absorbers (right)
2 × 99733305332 – OE Match Rear shock absorbers (left + right)
Fits:
Replacement for Car with PASM Electronic Damper Control (option code: 475)
Porsche 997.1 Carrera 4 / Carrera 4S 2005 - 2008 Coupe / Cabrio
Porsche 997.2 Carrera 4 / Carrera 4S 2009 - 2012 Coupe / Cabrio
- These shock absorbers are not PASM dampers and do not offer PASM-adjustable damping.
- They are designed as standard replacement units with built-in electronics to cancel PASM fault warnings.
- For correct functionality and proper vehicle handling, they must be installed as a full set of four (2 × front shock absorbers + 2 × rear shock absorbers)
- Mixing PASM units with OEMatch replacement units is not permitted and may result in suspension imbalance or fault messages.
Over time, shock absorbers lose their ability to control movement, leading to a less stable, bouncier and less predictable car. Replacing all four dampers at once ensures perfectly matched suspension behaviour, consistent ride comfort and proper chassis balance across front and rear.
When to Replace:
• Noticeable bounce, float or instability
• Leaking shock oil on any corner
• Front-end dive under braking or rear squat under acceleration
• Rough ride quality, vibration or knocking noises
• Uneven tyre wear or alignment issues
• Full suspension refresh on higher-mileage 997 models
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT997C4
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
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
These replacement shock absorbers are compatible with PASM-equipped cars and include built-in cancellation resistors to eliminate dashboard errors. They effectively bypass the Active Suspension Management system, allowing the vehicle to function as though it has standard suspension installed.
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
- These shock absorbers are not PASM dampers and do not offer PASM-adjustable damping.
- They are designed as standard replacement units with built-in electronics to cancel PASM fault warnings.
- For correct functionality and proper vehicle handling, they must be installed as a full set of four (2 × front shock absorbers + 2 × rear shock absorbers)
- Mixing PASM units with OEMatch replacement units is not permitted and may result in suspension imbalance or fault messages.
Kit Contents:
1x OE Match Shock Absorber for Left Side (Standard Replacement)
1x OE Match Shock Absorber for Right Side (Standard Replacement)
2x OE Match Coil Springs (Standard Replacement)
1x OE Match Bump Stop & Dust Cover Kit
2x OE Match Upper Stop Plates / Washers
2x OE Match Lower Stop Plates / Washers
2x OE Match Shock Absorber Compensating Plate (3mm)
2x OE Match Shock Absorber Compensating Plate (6.5mm)
2x OE Match Coil Spring Support Ring
1x OE Match Top Mount for Left Side
1x OE Match Top Mount for Right Side
2x OE Match Top Mount Bearings
2x Genuine Porsche M14 x 1.5 Nuts for Shock Absorber
2x Genuine Porsche Cone Washers
6x Genuine Porsche M8 Lock Nuts for Top Mounts
NOTE: This kit is not suitable for Targa models, or models with static sports suspension (PR 030).
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FRONTSUSPENSIONKIT997-1
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
These replacement shock absorbers are compatible with PASM-equipped cars and include built-in cancellation resistors to eliminate dashboard errors. They effectively bypass the Active Suspension Management system, allowing the vehicle to function as though it has standard suspension installed.
Kit includes:
1 × 99734304741 - OE Match Front Left PASM Shock
1 × 99734304841 - OE Match Front Right PASM Shock
Fits:
Replacement for Car with PASM Electronic Damper Control (option code: 475)
Porsche 997.1 Carrera 4 / Carrera 4S 2005 - 2008 Coupe / Cabrio
Porsche 997.2 Carrera 4 / Carrera 4S 2009 - 2012 Coupe / Cabrio
- These shock absorbers are not PASM dampers and do not offer PASM-adjustable damping.
- They are designed as standard replacement units with built-in electronics to cancel PASM fault warnings.
- For correct functionality and proper vehicle handling, they must be installed as a full set of four (2 × front shock absorbers + 2 × rear shock absorbers)
- Mixing PASM units with OEMatch replacement units is not permitted and may result in suspension imbalance or fault messages.
Diagram ref no 1
Over time, PASM front shock absorbers lose their damping accuracy, which affects both comfort and handling. Worn dampers can cause inconsistent ride quality, reduced steering precision and poor stability over bumps or under braking. Replacing them restores full PASM functionality, ensuring the suspension reacts correctly in all modes and returns the 911’s signature balanced, confident road feel.
When to Replace:
• PASM fault messages appear
• Leaking hydraulic fluid from either damper
• Front suspension feels harsh, bouncy or unstable
• Noticeable decline in steering precision
• Completing a suspension refresh for optimal handling
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99734304X41
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
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Fits:
Porsche 997.1 C4 / C4S Coupe/Cabrio MKI 2005>>2008
Porsche 997.2 C4 / C4S Coupe/Cabrio MKII 2009>>2012
Replacement for Cars With Option Codes:
475 - "PASM" Electronic Damper Control
- These shock absorbers are not PASM dampers and do not offer PASM-adjustable damping.
- They are designed as standard replacement units with built-in electronics to cancel PASM fault warnings.
- For correct functionality and proper vehicle handling, they must be installed as a full set of four (2 × front shock absorbers + 2 × rear shock absorbers)
- Mixing PASM units with OEMatch replacement units is not permitted and may result in suspension imbalance or fault messages.
Diagram Ref No 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99734304
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
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
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Porsche Front Shock Absorbers for PASM | Design911 Adaptive Suspension Components for Precision & Comfort
Front shock absorbers for Porsche Active Suspension Management (PASM) are advanced components designed to dynamically adjust damping force in real time. Controlled electronically, these adaptive dampers continuously respond to road conditions, vehicle load, and driving style — balancing comfort, handling, and performance. Whether cruising smoothly or cornering aggressively, PASM front shock absorbers ensure your Porsche delivers its trademark agility and ride refinement.
At Design911, we supply a comprehensive range of PASM front shock absorbers, engineered for precision fitment, durability, and performance. Manufactured using advanced damping technology and high-strength materials, these components restore the exact responsiveness and comfort of Porsche’s adaptive suspension system. Perfect for maintenance, restoration, or high-performance upgrades, our range ensures your Porsche remains stable, composed, and connected to the road.
What Do Front PASM Shock Absorbers Do?
PASM (Porsche Active Suspension Management) front shock absorbers combine electronic control with hydraulic damping to deliver variable suspension stiffness depending on driving mode and conditions.
Core Functions:
• Adjust damping force electronically for comfort or sport modes.
• Maintain stability and traction on varying surfaces.
• Reduce body roll, pitch, and dive during cornering and braking.
• Enhance steering precision and ride comfort.
• Work with onboard sensors to optimise chassis performance in real time.
In peak condition, PASM shock absorbers provide exceptional handling control and ride comfort, maintaining the ideal balance between performance and luxury.
Why Do PASM Front Shock Absorbers Fail or Degrade?
Even with advanced design, PASM dampers are subject to wear over time from constant motion, fluid pressure, and environmental exposure.
Common Causes of Failure Include:
• Leaking hydraulic fluid reducing damping performance.
• Electronic actuator or solenoid failure.
• Corrosion or contamination of electrical connectors.
• Internal seal wear or piston damage.
• Software faults or sensor malfunctions affecting response.
When these components fail, drivers may notice a rough ride, uneven damping, warning lights, or poor handling — all signs that replacement is required to restore comfort and control.
Why Replace or Upgrade Your Porsche PASM Front Shock Absorbers?
Replacing worn or leaking PASM shock absorbers restores ride comfort, handling precision, and the adaptive system’s full functionality. Upgraded components offer enhanced durability and performance consistency under demanding conditions.
Key Benefits:
• Restores full PASM suspension performance and comfort.
• Improves chassis stability and responsiveness.
• Reduces vibration, noise, and uneven ride quality.
• Constructed from high-quality, corrosion-resistant materials.
• Fits Porsche 911, Panamera, Cayenne, and Macan models equipped with PASM.
• Ideal for adaptive suspension repair, maintenance, or tuning upgrades.
Design911’s Porsche PASM front shock absorbers combine innovation, quality, and precision — ensuring your Porsche handles, rides, and responds exactly as intended.
Highlights
• Premium Porsche PASM adaptive front shock absorbers.
• Precision-engineered for dynamic damping performance.
• Restores ride comfort, control, and system reliability.
• Compatible with Porsche’s Active Suspension Management system.
• High-strength materials ensure long-lasting performance.
• Perfect for servicing, restoration, or adaptive suspension tuning.
