Coil Springs FRONT

Standard replacement coil springs - suitable for Rear-wheel drive models equipped with PASM / PDDC  (option codes: 352 / 475 / 477)

SET OF 2.
We strongly recommend replacing coil springs in pairs. 

Fits:
Porsche 991.1 Carrera 2 / 2S  2012 - 2016
Porsche 991.2 Carrera 2 / 2S  2016 - 2019
* for cars Electronic damper control for PASM and PDCC (option code: 352)
* for cars "PASM" electronic damper control (option code: 475)
* for cars PASM w/o lowering (option code: 477)

Diagram ref no 7

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 together 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 restores correct suspension geometry, factory stance, and predictable driving dynamics

When to replace:
• Front ride height appears uneven or sagging
• Increased body roll or reduced handling precision
• Visible corrosion, cracks, or spring fatigue
• During front shock or strut replacement
• As part of a front suspension refresh

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134353130504

The product you are viewing cross references to these numbers

Standard replacement coil springs - suitable for models equipped with PASM / PDDC  (option codes: 352 / 475 / 477)

SET OF 2
We strongly recommend replacing coil springs in pairs. 

Fits:
Porsche 991.1 Carrera 4 / 4S 2012 - 2016
Porsche 991.1 Targa 4 / 4S 2012 - 2016
Porsche 991.2 Carrera 4 / 4S  2016 - 2019
Porsche 991.2 Targa 4 / 4S  2016 - 2019
* for cars Electronic damper control for PASM and PDCC (option code: 352)
* for cars "PASM" electronic damper control (option code: 475)
* for cars PASM w/o lowering (option code: 477)

Diagram ref no 7

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 together 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 restores correct suspension geometry, factory stance, and predictable driving dynamics

When to replace:
• Front ride height appears uneven or sagging
• Increased body roll or reduced handling precision
• Visible corrosion, cracks, or spring fatigue
• During front shock or strut replacement
• As part of a front suspension refresh

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134353131504

The product you are viewing cross references to these numbers

Standard replacement coil springs - suitable for models equipped with a Standard chassis (option code: 029).

SET OF 2
We strongly recommend replacing coil springs in pairs. 

Fits:
Porsche 991.1 Carrera 2 / Carrera 2S 2012 - 2016
* For cars with Standard chassis (option code: 029)

Diagram ref no 10

A front coil spring set, supplied as two matched springs, designed to replicate the fit, function, and performance of the original Porsche M029 suspension components. Ideal for maintaining factory-correct ride comfort and stability.

This spring set supports the full front axle load and manages 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 together as a matched pair, they absorb road impacts, stabilise the vehicle body, and help maintain consistent tyre contact, steering accuracy, and ride comfort for everyday driving.

Standard suspension springs gradually weaken and sag due to mileage, load, and road conditions. Replacing only one spring can lead to uneven ride height and compromised comfort. Installing a pair restores correct suspension geometry, factory stance, and the balanced ride.

When to replace:
• Front ride height appears uneven or sagging
• Noticeable reduction in ride comfort or stability
• Visible corrosion, cracks, or spring fatigue
• During front shock or strut replacement
• As part of a standard suspension refresh or alignment correction

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134353106504

The product you are viewing cross references to these numbers

Standard replacement coil spring - suitable for models equipped with PASM and PDCC (option codes: 352, 475, 477).

SET OF 2
We strongly recommend replacing coil springs in pairs. 

Fits:
Porsche 991.1 Carrera 2 / 2S  2012 - 2016
* for cars with Electronic damper control for PASM and PDCC (option code: 352)
* for cars with PASM electronic damper control (option code: 475)
* for cars with PASM w/o lowering (option code: 477)

Diagram ref no 10

This spring set supports the full front axle load and manages 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 together as a matched pair, they absorb road impacts, stabilise the vehicle body, and help maintain consistent tyre contact, steering precision, 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 new pair restores correct suspension geometry, factory stance, and predictable driving dynamics.

When to replace:
• Front ride height has sagged or become uneven
• Springs show signs of fatigue, corrosion, or damage
• During front shock or strut replacement
• Suspension refurbishment or alignment correction
• Reduced handling precision or ride quality

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134353110504

The product you are viewing cross references to these numbers

Standard replacement coil springs - suitable for models equipped with a Sport suspension (option code: 030), with a Sport chassis PASM and PDCC (option code: 031).

SET OF 2
We strongly recommend replacing coil springs in pairs. 

Fits:
Porsche 991.1 Carrera 2 / 2S / GTS 2012 - 2016 Coupe
* For cars with Sports suspension (option code: 030)
* For cars with Sports chassis with PASM and PDCC (option code: 031)

Diagram ref no 10

This spring set supports the full front axle load and manages 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 together as a matched pair, they absorb road impacts, stabilise the vehicle body, and help maintain consistent tyre contact, steering accuracy, 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 new pair restores correct suspension geometry, factory stance, and predictable driving dynamics

When to replace:
•  Front ride height appears uneven or sagging
•  Increased body roll or reduced handling precision
•  Visible corrosion, cracks, or spring fatigue
•  During front shock or strut replacement
•  As part of a front suspension refresh

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134353108504

The product you are viewing cross references to these numbers

Standard replacement coil spring - suitable for models with Standard chassis  (option code: 029)

SET OF 2
We strongly recommend replacing coil springs in pairs. 

Fits:
Porsche 991.1 Carrera 4 / 4S / 4 GTS 2012 - 2016
Porsche 991.1 Targa 4 GTS 2012 - 2016
* For cars with Standard chassis (option code: 029)

Diagram ref no 10

This spring set supports the full front axle load and manages 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 together as a matched pair, they absorb road impacts, stabilise the vehicle body, and help maintain consistent tyre contact, steering accuracy, 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 restores correct suspension geometry, 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.

99134353123504

The product you are viewing cross references to these numbers

Standard replacement coil springs - suitable for models equipped with a Sport suspension (option code: 030), with a Sport chassis PASM and PDCC (option code: 031).

SET OF 2
We strongly recommend replacing coil springs in pairs. 

Fits:
Porsche 991.1 Carrera 4 / 4S 2012 - 2016
* For cars with Sports suspension (option code: 030)
* For cars with Sports chassis with PASM and PDCC (option code: 031)

Diagram ref no 7

This spring set supports the full front axle load and controls suspension movement during braking, acceleration, and cornering. Replacing both springs together ensures even load distribution, symmetrical ride height, and predictable handling - especially important for sport-tuned suspension systems.

Installed between the lower control arms and front strut assemblies, the coil springs compress and rebound with suspension travel. Working together as a matched pair, they absorb road impacts, stabilise the vehicle body, and help maintain precise steering response and tyre contact under dynamic driving conditions.

Sport suspension springs operate under higher loads and more aggressive driving conditions. Over time, they can weaken or sag, leading to uneven ride height and reduced handling precision. Installing a pair restores correct suspension geometry, factory sport stance, and the sharp driving dynamics Porsche intended.

When to replace:
• Front ride height appears uneven or lower than specification
• Reduced handling sharpness or increased body roll
• Visible corrosion, cracks, or spring fatigue
• During shock or strut replacement on M030/M031 vehicles
• As part of a sports suspension refresh or alignment correction

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134353113504

The product you are viewing cross references to these numbers

FRONT Coil Spring Kit With Sport Suspension (M030 / M031).
Restore the intended front ride height, suspension control and precise chassis behaviour of your Porsche with this OE Match FRONT Coil Spring Kit for Sport Suspension (M030 / M031). 

Kit Contents:
x2 Front Coil Springs (99134353108504/1)
x2 Spring Support Seat (9P1411189/1)
x2 Bellow Cover (9P1412137A/1)
x2 Bump Stop Washer (99134356101)
x2 Bump Stop (99134330105/1)
x2 Top Mount Underlay Pad (9P1412149/1)
x2 Compensation Ring (9P1412269/1)
x2 Mount Plate (99134312500/1)
x2 Upper Mount Bearing (99134350103/1)
x2 Top Nut (PAF00855000)

Fits:

• Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16 (COUPE)
• Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16 (COUPE)

Designed for compatible Porsche applications equipped with the specified M030 / M031 Sport Suspension, this kit provides replacement components for the front spring and suspension assembly. It is ideal for repairing a worn or damaged front suspension or carrying out a more comprehensive chassis refurbishment.

The front coil springs support the weight of the vehicle while allowing the wheels to move vertically over bumps and changing road surfaces. Working together with the shock absorbers and associated mounting components, the springs help determine ride height, suspension travel and the way the chassis responds during braking, cornering and acceleration.

Sport suspension systems depend on the correct spring specification to maintain their intended balance. A sagging, fractured or incorrect spring can change ride height and suspension geometry, potentially affecting steering response, handling, tyre wear and stability.

Replacing deteriorated components with this OE Match Front Coil Spring Kit helps restore the suspension closer to its intended operating condition.

What This Product Does:

• Support the weight of the front of the vehicle.
• Maintain the specified front ride height.
• Provide controlled suspension movement over uneven roads.
• Work together with the front shock absorbers.
• Maintain the intended M030 / M031 Sport Suspension characteristics.
• Support precise steering response.
• Maintain front-end stability.
• Help control body movement during cornering.
• Support stable behaviour under braking.
• Maintain appropriate suspension geometry.
• Keep the tyres in consistent contact with the road.
• Restore suspension performance where original components have deteriorated.
• Provide an OE Match replacement solution for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Broken or fractured spring coils.
• Front of the vehicle sitting lower than normal.
• One front corner sitting lower than the other.
• Uneven ride height.
• Excessive suspension sag.
• Reduced ground clearance.
• Knocking or clunking from the front suspension.
• Metallic noises over bumps.
• Noise when steering.
• Spring incorrectly positioned within its seat.
• Increased body movement.
• Reduced steering precision.
• Unsettled handling.
• Suspension bottoming out.
• Vehicle pulling or behaving unpredictably.
• Uneven or accelerated tyre wear.
• Visible spring corrosion.
• Damaged spring coating.
• Cracks or significant deterioration around associated mounting components.  

Why Replacement Matters:

• Coil springs are fundamental load-bearing suspension components.
• They help maintain the designed relationship between the wheels, suspension and vehicle body. A damaged or weakened spring can alter this relationship and affect the way the chassis behaves.
• A completely fractured spring can also move from its intended seating position and potentially interfere with surrounding components.
• Replacing damaged or significantly deteriorated springs helps restore safe and predictable suspension operation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

SUSPENSIONKIT991.1.C2.M030-FR

The product you are viewing cross references to these numbers

Front Coil Spring Kit With Standard Suspension (M029).

Restore the correct front ride height, suspension control and original road-going characteristics of your Porsche with this OE Match Front Coil Spring Kit for Standard Suspension (M029).

Kit Contents:
x2 Front Coil Springs (99134353106504/1)
x2 Spring Support Seat (9P1411189/1)
x2 Bellow (99134350901)
x2 Bump Stop Washer (99134356101)
x2 Bump Stop (99134330104)
x2 Top Mount Underlay Pad (9P1412149/1)
x2 Compensation Ring (9P1412269/1)
x2 Mount Plate (99134312500/1)
x2 Mount Bearing (99134350103/1)
x2 Top Nut (PAF00855000)

Fits:

• Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
• Porsche 991.1 Carrera C2S 3.8L (400/430 Bhp) 2012-16  

Designed for compatible Porsche applications equipped with the specified M029 Standard Suspension, this kit provides replacement components for the front spring assembly and is ideal for repairing worn, damaged or ageing suspension components.

The front coil springs support the weight of the vehicle and allow the suspension to absorb bumps and changes in the road surface. Working together with the shock absorbers and associated mounting components, they help establish the correct ride height while maintaining controlled wheel movement, steering stability and predictable chassis behaviour.

Over time, coil springs can weaken, corrode, sag or fracture. Associated mounting components can also deteriorate through age, mileage and repeated suspension movement. These problems can result in uneven ride height, suspension noise, reduced handling precision and abnormal tyre wear.

Replacing deteriorated components with this OE Match M029 Front Coil Spring Kit helps return the front suspension to its intended operating condition.

What This Product Does:

• Support the weight of the front of the vehicle.
• Maintain the specified front ride height.
• Provide controlled suspension travel.
• Absorb changes in the road surface.
• Work together with the front shock absorbers.
• Maintain the intended M029 Standard Suspension characteristics.
• Support predictable steering response.
• Help maintain front-end stability.
• Control body movement in conjunction with the dampers.
• Support stable braking and cornering behaviour.
• Maintain appropriate suspension geometry.
• Keep the tyres in consistent contact with the road.
• Restore worn or damaged front suspension components.
• Provide an OE Match replacement solution for compatible Porsche applications.  

Symptoms Of Wear Or Failure:

• Broken or fractured spring coils.
• Front of the vehicle sitting lower than normal.
• One front corner sitting lower than the other.
• Uneven ride height.
• Excessive suspension sag.
• Reduced ground clearance.
• Knocking or clunking from the front suspension.
• Metallic noises when travelling over bumps.
• Noise during steering.
• Suspension bottoming out.
• Increased body movement.
• Reduced steering precision.
• Unsettled or inconsistent handling.
• Vehicle pulling to one side.
• Uneven or accelerated tyre wear.
• Visible corrosion on the springs.
• Damaged spring coating.
• Spring incorrectly seated.
• Cracked or deteriorated associated mounting components.  

Why Replacement Matters:

• Coil springs are load-bearing suspension components that play an important role in maintaining the vehicle's ride height and suspension geometry.
• A weakened, sagging or broken spring can alter the relationship between the wheel, suspension and vehicle body.
• A severely fractured spring can also move out of its intended seating position and potentially interfere with surrounding components.
• Replacing defective springs helps restore safe and predictable suspension behaviour.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

SUSPENSIONKIT991.1.C2.M029-FR

The product you are viewing cross references to these numbers