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DISPLAYING 1 to 3 (of 3 products)
K9568DA
Product Information
Product Information
Wössner forged high compression piston kit. 

wossner

Fits:
Porsche 986 Boxster 2.5ltr - 1997 to 1999

Please note, pistons not suitable for Alusil coated bores
Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wossner's latest catalogue:

Part Number: K9568DA

Oversize: 0.0mm (Standard)
Engine Type: M96.20 
Piston Size: 85.42mm
OE Bore Size: 85.5mm
Stroke: 72mm
Wössner Comp Ratio: 11.0:1
Compression Height: 35.3mm
Ring Part Number: 855XPY
Number of Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.


Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

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Related, superseded, cross reference or alternative numbers for comparison.

K9568DA
99610303111
99610303112

The product you are viewing cross references to these numbers
K9569DA
Product Information
Product Information
Wössner K9569DA forged high compression piston kit. 

wossner

Fits:
Porsche 986 Boxster 2.7ltr - 2003 to 2004
Porsche 987 Boxster 2.7ltr - 2005 to 2008
Porsche 987 Cayman 2.7ltr - 2006 to 2008

Please note, pistons not suitable for Alusil coated bores
Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wossner's latest catalogue:

Part Number: K9569DA

Oversize: 0.0mm (Standard)
Engine Type: M96.20 / M96.25 / M97.20
Piston Size: 85.42mm
OE Bore Size: 85.5mm
Stroke: 78mm
Wössner Comp Ratio: 11.0:1
Compression Height: 32.3mm
Ring Part Number: 855XPY
Number of Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.


Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.

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

K9569DA
98710307103
99610307114
99610303111
99610303113
99610307115

The product you are viewing cross references to these numbers
K1808DA
Product Information
Product Information
Wössner forged piston kit.

wossner

Fits:
Porsche 987 Boxster S 3.2L 24v

Please note, pistons not suitable for Alusil or Lokasil coated bores
Suitable to use with Nikasil liners.

Specification
Technical information is sourced from Wössner's latest catalogue:

Part Number: K1808
Engine Type: M96.26
OE Bore Size: 93.00mm

Bore Sizes Available:
- 93.00mm - 3179cc, Compression Ratio: 11.1:1

Bore Size 93.00mm
Piston Size: 92.93mm
Over Size: 0mm
Displacement CC: 3179cc
Dome / Bowl Volume: -12.65cc
Wossner Comp Ratio: 11.1:1
Ring Part Number: 930XPY
Please note, pistons not suitable for Alusil or Lokasil coated bores

Standard
Stroke: 78mm
Dome/Bowl Volume:
OE Comp. Ratio : 11.1:1
Comp. Height : 32.3mm
Valves Per Cylinder: 4
Cylinders: 6

Please CLICK HERE for Technical release – Piston / Con rod
orientation.


Wössner are regarded by Europe's leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress's of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent "hot spots" on piston crowns. Price includes all piston rings and gudgeon pins.

Price shown is for complete engine set.
DISPLAYING 1 to 3 (of 3 products)
Also found on these pages
About Wössner Forged Piston Kit

Wössner Forged Piston Kits - High-Performance Porsche Engine Upgrades

Wössner Forged Piston Kits are engineered for high-performance and motorsport-grade Porsche engines where strength, precision, and reliability are critical. Manufactured from premium forged aluminium alloys, Wössner pistons offer superior durability and thermal stability compared to standard cast pistons, making them ideal for tuned, rebuilt, or track-driven Porsche engines.

Available from Design911, these piston kits are designed to withstand higher compression ratios, increased cylinder pressures, and extreme operating temperatures, delivering improved engine longevity and performance under demanding conditions.

What Do Wössner Forged Piston Kits Do?

Wössner forged pistons replace factory cast pistons to strengthen the engine’s rotating assembly and improve performance resilience.

Core Functions:

  • Increase piston strength under high load and temperature.
  • Improve resistance to detonation and thermal fatigue.
  • Support higher RPM, boost, and compression levels.
  • Enhance reliability in tuned or rebuilt Porsche engines.
  • Provide precise tolerances for performance engine builds.

These kits form a critical foundation for safe and reliable engine tuning.

Why Do Standard Pistons Fail?

Factory cast pistons are designed for standard power output and daily driving conditions. Under performance use, they can fail due to:

  • Excessive heat causing cracking or melting.
  • Detonation leading to piston crown or ring land damage.
  • Increased cylinder pressures from tuning or forced induction.
  • Fatigue from high RPM or track use.
  • Oil control issues and piston skirt wear over time.

Once these limits are exceeded, catastrophic engine damage can occur.

Why Upgrade to Wössner Forged Pistons?

Wössner forged pistons are purpose-built to handle extreme engine conditions.

Upgrade Benefits:

  • Forged aluminium construction for superior strength.
  • Enhanced heat dissipation and thermal stability.
  • Stronger ring lands and skirt design.
  • Suitable for turbocharged, supercharged, and high-compression builds.
  • Trusted by professional engine builders and motorsport teams.

Upgrading to forged pistons significantly reduces the risk of piston failure while unlocking safe performance gains.

Highlights

  • Motorsport-grade Wössner forged piston kits
  • Designed for tuned and performance Porsche engines
  • Improved resistance to heat, detonation, and fatigue
  • Ideal for rebuilds, track use, and power upgrades
  • Proven reliability in high-output applications       

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