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OE Match with PASM
By OE Match
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 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.
Set includes:
2 × 99734304524 – OE Match Front shock absorbers (left + right)
2 × 99733305332 – OE Match Rear shock absorbers (left + right)

Replacement for Car with PASM Electronic Damper Control (option code: 475)
Porsche 997.1 Carrera 2 3.6L
Porsche 997.1 Carrera 2S 3.8L
Porsche 997.2 Carrera 2 3.6L
Porsche 997.2 Carrera 2S 3.8L
- 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 behavior, 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Related, superseded, cross reference or alternative numbers for comparison.
SUSPENSIONKIT997C2
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
- 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.
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
This kit is comprised of the following items:
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 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.

Replacement For vehicles with PASM, For vehicles with electronic suspension control
Porsche 997.1 C2 3.6L Carrera
Porsche 997.1 C2 S 3.8L Carrera
Porsche 997.2 C2 3.6L Carrera
Porsche 997.2 C2 S 3.8L Carrera
- 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, front shocks lose their damping strength, which can make the car feel less responsive, less stable and less comfortable. Worn shocks can increase braking distances, reduce cornering grip and lead to uneven tyre wear. Replacing them restores proper suspension control, steering sharpness and the confident handling the 997 chassis is known for.
When to Replace:
• Noticeable nose-dive during braking
• Excessive bounce, vibration or front-end instability
• Leaking shock oil or visible damage
• Steering feels vague or less precise than usual
• Uneven or accelerated front tyre wear
• Performing a full suspension refresh for improved handling consistency
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99734304524
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
- 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.
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
This kit is comprised of the following items:
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 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.

Porsche 997.1 C2 3.6L Carrera
Porsche 997.1 C2 S 3.8L Carrera
Porsche 997.2 C2 3.6L Carrera
Porsche 997.2 C2 S 3.8L Carrera
- 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.
Fits cars:
For vehicles with PASM, For vehicles with electronic suspension control
Please Note:
Price is for each damper you will need to buy 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99734304524
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09
Cars with SPORT chassis (Option code: I030/I480)
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.
Fits:
Porsche 997 Turbo Cars with SPORT chassis (Option code: I030/I480)
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
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
-
suspension shock absorber strut for 997.1 CARRERA 2 / CARRERA 2S 2005-08 402-00
-
suspension shock absorber strut for 997.1 CARRERA 4 / CARRERA 4S 2005-08 and 997.1 TARGA / TARGA S 2007-08 402-01
-
shock absorber coil spring for 997.1 CARRERA 2 / CARRERA 2S 2005-08 502-00
-
shock absorber coil spring for 997.1 CARRERA 4 / 4S 2005-08 and 997.1 TARGA / S 2007-08 502-01
-
suspension shock absorber strut 997.1 TURBO 2007-09 402-00
-
shock absorber coil spring 997.1 TURBO 2007-09 502-00
OEMatch PASM front shock absorbers — Control, Stability, Comfort
OEMatch PASM front shock absorbers for Porsche models are replacement adaptive dampers prepared for Porsche applications. They restore the variable damping behaviour of Porsche Active Suspension Management, helping to retain ride comfort and handling balance across road conditions. This page summarises types, common faults and the practical benefits of replacing worn PASM dampers.
Available Types
- PASM front shock absorbers — replacement adaptive dampers for standard systems
- Reconditioned PASM dampers where specified by application
Understanding OEMatch PASM front shock absorbers
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original PASM suspension.
OE (Original Equipment) refers to parts matching original specifications for the PASM suspension and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM PASM suspension engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
PASM front shock absorbers combine electronic control with hydraulic damping to vary stiffness according to driving mode, vehicle load and road surface. The unit comprises a hydraulic damper with an electronic actuator that adjusts damping in real time, working with sensors and the vehicle control unit to adapt ride and handling. Replacing failed units restores the adaptive response and keeps chassis dynamics predictable.
Benefits Include
- Restores adjustable damping to preserve ride comfort and handling balance
- Reduces body roll, pitch and dive under dynamic loads
- Helps maintain steering precision and chassis stability
Why PASM front shock absorbers Wear and Fail
- Hydraulic fluid leaks that reduce damping effectiveness
- Electronic actuator, solenoid or wiring faults that limit adjustment
- Corrosion or damaged electrical connectors impairing sensor signals
- Internal seal wear or piston damage from long-term use or contamination
The Importance of Replacing with OEMatch PASM front shock absorbers
Replacing worn or leaking PASM dampers restores the adaptive suspension’s ability to balance comfort and performance. OEMatch supplies a wide selection of Porsche-related parts, including thousands of part numbers and extensive cross-references, intended to help maintain and repair vehicles across generations. Choosing suitable replacement dampers supports safe, predictable handling and reduces the risk of secondary chassis wear.
Advantages
- Direct-fit replacements engineered to match original dimensions and tolerances
- Corrosion-resistant finishes and high-strength materials for longevity
- Options for maintenance, restoration or upgrade applications prepared for Porsche models