do not press the back button…
-
Engine Parts
-
- Engine Rebuild Parts Intermediate shaft (IMS) Oil System Parts Fuel System Parts Gaskets & Sets Radial Seal / RMS / Camshaft / Balance shaft Belts / Tensioners / Rollers Chains & Tensioners Timing covers and gaskets Engine Bearings / Shells Engine Valves / Guides / Springs Rocker Arms & Tappets Engine Bolts / Studs Engine Mounts Piston Rings Engine Cylinders / Liners / Pistons Connecting Rod Cylinder Head / Camshaft Carrier Camshaft covers / Gaskets Camshafts Camshaft gears / sprockets and fixings Crankcase Parts Crankshaft & Parts All Categories
-
Brakes
-
- Brakes Brake Pads & Disc Package Brake Disc Standard Brake Pads Standard SPORTS Brake Disc Brembo Standard brakes Brembo Racing brakes TEXTAR Brakes PAGID Racing Brakes Zimmermann Brakes Performance Friction Brakes SHW Performance Brakes EBC Brakes Black Diamond Performance Brakes Brake Pad Wear Sensors Brake Pad Anti-vibration shims Caliper Bolts / Disc Screws Pin Kit and Guide Plates Performance Brake Hoses Standard Brake Hoses Caliper and Brake Lines Brake Calipers Brake Caliper Upgrades All Categories
-
-
Suspension & Steering
-
Transmission
-
- Gearbox / Transmission Clutch Kits Clutch Kits - High Performance Clutch Friction Plate Clutch Pressure Plate Clutch Release Bearings Clutch Guide Tube Clutch Forks & Levers Clutch Bolts Gearbox Parts Driveshafts & Parts Gasket Sets / Gaskets / Seals / Lock Nuts Gearbox Mounts Gearshift Control Parts Flywheel / Torque CV Joints Kits CV Boots and Kits Cardan Shaft / Prop Shaft Gearbox / Differential Oil Gearbox Sump / Oil Pan Used Transmissions / Gearboxes Front Differential Rear Differential All Categories
-
-
Cooling & Heating
-
- Heating / Air Conditioning Air con condensers & desiccators Air con evaporators & expansion valves Air con pipes Air con belts Fans & cowlings Relays / Sensors / Resistors Compressors Heater flaps Blower Motors & Fans Heater blowers Heater hoses & pipes Vents / Grilles Climate Control Temperature Sensors / Switches Heating / Air conditioning Housings
-
-
Electrical & Lighting
-
- Electrical & Relays Fuel Pumps Brake Light Switch Hazard Warning Switch Handbrake Switch Reverse Light Switch Headlamp Switch Window Switch Window Motors Window Mechanism Wiper Motor Wiper Mechanism Electric Horn SmartTop Control Units Ignition Switch Seat Switch Indicator / Wiper Stalk Switch Roof / Sun Roof Switch Relays / Fuses Washer pumps / bottles / jets Alarms / Security / Central Locking Electronic Control Units Wiper Switches All Categories
-
-
Body & Exhaust
-
- Chassis / Bodywork Restoration Chassis / Repair Panels Front Lid Damper Rear Lid Damper Bonnets / Locks & Latches Boots / Rear Lid / Locks and Latches Rear lid / Tailgate Bumpers Front Bumpers Rear Door Handles | Locks | Keys Door Panels | Hinges | Striker Plates Window Lifters | Motors Wings Front & Parts Wings Rear & Parts Side Sill Panels Exterior Chassis Mouldings Mirrors & Parts Stone Chip Foils / Stickers Undertrays Chassis & Engine Front Wiper Arms & Blades Rear Wiper Arms & Blades Wheel Arch Liners & Covers Roof - Cabrio / Targa / Coupe / Speedster All Categories
-
-
Lubricants & Fluids
-
- Service Parts Service Kits Service Kits OE Parts Oil Filters Air Filters Pollen/Particle Filters Fuel Filters Belts All Types Spark Plugs Ignition Coils Front Wiper Arms & Blades Rear Wiper Arms & Blades Gearbox Service Parts Porsche Classic Motor oil Engine Oil & Lubricants - Mobil Engine Oil & Lubricants - Total Engine Oil & Lubricants - Castrol Engine Oil & Lubricants - Motul Engine Oil & Lubricants - Millers Oils NanoDrive Engine Oil & Lubricants - Millers Oils Fuel Additives Garage PPE
-
-
All Parts
-
- Parts Accessories Chassis / Bodywork Brakes Clothing & Gifts Electrical & Relays Engine Cooling Engine Electrical Engine Rebuild Parts Engine Tuning Exhausts Exterior Styling / Spoilers Gearbox / Transmission Heating / Air Conditioning Hydraulics Interior & Accessories Incar / Multimedia Lighting Mats & Carpets Motorsport and Off-Road Pedal Cluster Rubber Seals Seats & Seat Belts All Categories
-
- Back to main website
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97

Fits:
Porsche 993 3.6Ltr - 1994-1998
Not suitable for Alusil or Lokasil Treated bores
Suitable to use with Nikasil liners.
Specification
Technical information is sourced from Wössner's latest catalogue:
Part Number: K9016
Engine Type: -
OE Bore Size: 100.00mm
Bore Sizes Available:
- 100.00mm - 3600.26cc, Compression Ratio: 11.8:1
- 102.00mm - 3745.71cc, Compression Ratio: 11.8:1
Bore Size 100.00mm
Piston Size: 99.94mm – K9106DA
Over Size: 0mm
Displacement CC: 3600cc
Dome / Bowl Volume: +40.16cc
Wössner Comp Ratio: 11.8:1
Ring Part Number: 1000XSY
Not suitable for Alusil or Lokasil Treated bores
Bore Size 102.00mm
Piston Size: 101.94mm – K9106D200
Over Size: 2mm
Displacement CC: 3745cc
Dome / Bowl Volume: +40.16cc
Wössner Comp Ratio: 11.8:1
Ring Part Number: 1002XSY
Not suitable for Alusil or Lokasil Treated bores
Strandard
Stroke: 76.4mm
Dome/Bowl Volume: +40.16cc
OE Comp. Ratio: 11.3:1
Comp. Height: 31.7mm
Valves Per Cylinder: 2
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.
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
-
Pulleys
-
Engine / Gearbox Mounts
-
Oil Flow / Sump
-
Engine Rods and Bolts
-
Air Filters
-
Air Induction Kits
-
Camshaft Covers
-
Performance Plenum
-
Electronic Fuel Injection Throttle Kits
-
Electronic Throttle Booster
-
IRIDIUM POWER Spark Plugs
-
IRIDIUM RACING Spark Plugs
-
Fuel rails / regulators
-
Clutches / Flywheels
-
Hoses / Kits
-
ECU Reader / Fault Finder
-
Exhaust Packages
-
Fuel Additives
-
CP Carrillo Pistons
-
CP Carrillo Connecting Rods
-
Capricorn Engine parts
-
Valve springs
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed