OE MATCH
Kit requires no crankcase machine work and will slip into any 1.7 /1.8 or 2.0ltr cases.
1.7ltr cylinder heads will need to be opened up to 96mm

Fits:
Porsche 914
Cylinders: Cast Iron.
Kit included: 4 Cylinders
Piston Set
1.7ltr / 1.8ltr - VW9600T4S66P
2.0ltr - VW9600T4S71P
- Porsche 914 (1970-1976)
Kit requires no crankcase machine work and will slip into any 1.7 /1.8 or 2.0ltr cases.
1.7ltr cylinder heads will need to be opened up to 96mm

Fits:
Porsche 914
Cylinders: Aluminium Biral
Kit included: 4 Cylinders
Piston Set
1.7ltr / 1.8ltr - VW9600T4S66P
2.0ltr - VW9600T4S71P
- Porsche 914 (1970-1976)

Fits:
Porsche 914
Porsche 912 E
Cylinder is 14.6mm longer, Designed to be "cut to fit" for long stroke or long rod engines.
Cylinders: Cast Iron.
Machine Work Required
Kit included: 4 Cylinders
- Porsche 914 (1970-1976)
- Porsche 912E 4CYL 1976

Fits:
Porsche 914
Cylinders: Cast Iron.
Kit included: 4 Cylinders
- Porsche 914 (1970-1976)

Fits:
Porsche 914
Cylinders: Cast Iron.
Kit included: 4 Cylinders
- Porsche 914 (1970-1976)

Fits:
Porsche 914
Cylinders: Cast Iron.
Kit included: 4 Cylinders
- Porsche 914 (1970-1976)

Fits:
Porsche 914
Cylinders: Cast Iron.
Kit included: 4 Cylinders
- Porsche 914 (1970-1976)

Fits: Porsche 914, Type 4
Engine size: 1700cc
Stroke: For 66mm stroke crankshafts
Pistons: Hypereutectic aluminium alloy
Compression Height: 42mm
Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings.
- Porsche 914 (1970-1976)
Engine Type : Porsche 914, VW Type 4, Bus or Sandrail.
Stroke: 71 to 78mm
Pistons: Hypereutectic aluminium alloy
Compression Height: 35.50mm
Pin: 24mm
Set includes: 4 pistons, 4 pins and a set of rings.
- Porsche 914 (1970-1976)

JE Forgings are made from 2618 Aluminium, They have a 0 offset with extra material under the top for the valve pockets. This set comes with a 34.6mm Compression Height and the 24mm Pin. The slightly smaller compression height allows you to easily build small stroked engines 71 to 78mm with the Standard length rods that have the 24mm pins. Biral Liners are a cast iron sleeve with aluminium fins, making them lighter and dissipate heat better.It is a Slip in kit no machine work is needed.
Engine Type : Porsche 914, VW Type 4, Bus or Sandrail.
Engine size: 2000cc
Stroke: 71 to 78mm
Cylinders: Biral
Pistons: Forged JE
Compression Height: 34.60mm
Pin: 24mm
Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings
- Porsche 914 (1970-1976)

JE Forgings are made from 2618 Aluminium, They have a 0 offset with extra material under the top for the valve pockets. The Big Bore Cylinders are honed in house to exact tolerances. This set comes with a 30.08mm Compression Height with a 22mm Pin. The smaller compression height allows you to build large stroked engines 78 to 86mm using longer rods that have the 22mm pins giving you the option to Build 2.3L and bigger Engines. This is a Machine in kit you will need to open both the Heads and Case to install them.
Engine Type : Porsche 914, VW Type 4, Bus or Sandrail.
Engine size: 2865cc with 86mm Crank
Stroke: 78 to 86mm
Cylinders: cast iron
Pistons: Forged JE
Compression Height: 30.08mm
Pin: 22mm
Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings
- Porsche 914 (1970-1976)

JE Forgings are made from 2618 Aluminium, They have a 0 offset with extra material under the top for the valve pockets. The Big Bore Cylinders are honed in house to exact tolerances. This set comes with a 34.6mm Compression Height and the 24mm Pin. The slightly smaller compression height allows you to easily build small stroked engines 71 to 78mm with the Standard length rods that have the 24mm pins giving you the option to Build 2.3L and bigger Engines. This is a Machine in kit you will need to open both the Heads and Case to install them.
Engine Type : Porsche 914, VW Type 4, Bus or Sandrail.
Engine size: 2365cc with 71mm crank
Stroke: 71 to 78mm
Cylinders: Cast Iron
Pistons: Forged JE
Compression Height: 34.60mm
Pin: 24mm
Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings
- Porsche 914 (1970-1976)

JE Forgings are made from 2618 Aluminum, They have a 0 offset with extra material under the top for the valve pockets. The Big Bore Cylinders are honed in house to exact tolerances. This set comes with a 30.08mm Compression Height with a 22mm Pin. The smaller compression height allows you to build large stroked engines 78 to 86mm using longer rods that have the 22mm pins giving you the option to Build 2.4L and bigger Engines. This is a Machine in kit you will need to open both the Heads and Case to install them.
Engine Type : Porsche 914, VW Type 4, Bus or Sandrail.
Engine size: 2921cc with 86mm Crank
Stroke: 78 to 86mm
Cylinders: cast iron
Pistons: Forged JE
Compression Height: 30.08mm
Pin: 22mm
Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings
- Porsche 914 (1970-1976)

JE Forgings are made from 2618 Aluminum, They have a 0 offset with extra material under the top for the valve pockets. The Big Bore Cylinders are honed in house to exact tolerances. This set comes with a 34.6mm Compression Height and the 24mm Pin. The slightly smaller compression height allows you to easily build small stroked engines 71 to 78mm with the Standard length rods that have the 24mm pins giving you the option to Build 2.4L and bigger Engines. This is a Machine in kit you will need to open both the Heads and Case to install them.
Engine Type : Porsche 914, VW Type 4, Bus or Sandrail.
Engine size: 2412cc with 71mm crank
Stroke: 71 to 78mm
Cylinders: Cast Iron
Pistons: Forged JE
Compression Height: 34.60mm
Pin: 24mm
Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings
- Porsche 914 (1970-1976)

JE Forgings are made from 2618 Aluminum, They have a 0 offset with extra material under the top for the valve pockets. The Big Bore Cylinders are honed in house to exact tolerances. This set comes with a 30.08mm Compression Height with a 22mm Pin. The smaller compression height allows you to build large stroked engines 78 to 86mm using longer rods that have the 22mm pins giving you the option to Build 2.4L and bigger Engines. This is a Machine in kit you will need to open both the Heads and Case to install them.
Engine Type : Porsche 914, VW Type 4, Bus or Sandrail.
Engine size: 2978cc with 86mm Crank
Stroke: 78 to 86mm
Cylinders: cast iron
Pistons: Forged JE
Compression Height: 30.08mm
Pin: 22mm
Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings
- Porsche 914 (1970-1976)

JE Forgings are made from 2618 Aluminum, They have a 0 offset with extra material under the top for the valve pockets. The Big Bore Cylinders are honed in house to exact tolerances. This set comes with a 34.6mm Compression Height and the 24mm Pin. The slightly smaller compression height allows you to easily build small stroked engines 71 to 78mm with the Standard length rods that have the 24mm pins giving you the option to Build 2.4L and bigger Engines. This is a Machine in kit you will need to open both the Heads and Case to install them.
Engine Type : Porsche 914, VW Type 4, Bus or Sandrail.
Engine size: 2458cc with 71mm crank
Stroke: 71 to 78mm
Cylinders: Cast Iron
Pistons: Forged JE
Compression Height: 34.60mm
Pin: 24mm
Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings
- Porsche 914 (1970-1976)
OE Match Replacement Engine Pistons – Precision Fit and Reliability for Porsche Engines
The pistons are the driving force behind every Porsche engine, converting combustion pressure into the rotational energy that powers your car. Over time, heat, friction, and high RPM operation can cause wear and damage, leading to reduced efficiency and performance. Replacing worn pistons with OE Match precision-engineered components restores your engine’s original responsiveness, balance, and compression integrity.
At Design911, we offer a comprehensive range of OE Match replacement pistons crafted to the same dimensions, materials, and performance standards as original components. Each piston is precision-machined from high-strength aluminium alloy, providing excellent heat dissipation, reduced friction, and reliable operation in both naturally aspirated and turbocharged engines.
These high-quality pistons deliver the perfect balance of performance, longevity, and affordability — making them ideal for rebuilds, restorations, or preventative maintenance.
What Do OE Match Engine Pistons Do?
Pistons are the heart of your engine’s combustion cycle, compressing the air-fuel mixture and transferring the resulting explosion’s energy through the connecting rods to the crankshaft.
Core Functions:
- Convert
combustion energy into motion, powering the crankshaft.
- Maintain
consistent compression for efficient combustion.
- Seal
the combustion chamber, preventing oil contamination or pressure loss.
- Contribute to power delivery, fuel economy, and engine smoothness.
A set of well-balanced pistons ensures smooth performance, optimal efficiency, and reduced wear across your Porsche’s engine.
Why Do Pistons Fail?
Even the most robust pistons degrade over time due to the extreme stresses inside a high-performance engine. Heat, contamination, and poor lubrication are the primary culprits behind piston wear and failure.
Common Causes of Piston Failure Include:
- Scuffing
and scoring from oil starvation or contaminated lubrication.
- Cracking
or pitting caused by detonation or overheating.
- Worn
piston rings leading to oil consumption and compression loss.
- Carbon
build-up, reducing sealing efficiency and combustion quality.
- Incorrect clearances during rebuilds or installation.
Replacing worn pistons ensures your Porsche’s engine maintains proper compression, smooth power delivery, and long-term reliability.
Why Replace with OE Match Pistons?
Choosing OE Match replacement pistons guarantees consistent fit, performance, and longevity while maintaining the authentic driving feel of your Porsche. These components are designed for direct installation without modification and are ideal for daily-driven, performance, or restoration projects.
Key Benefits:
- Restores original engine compression and performance.
- Ensures
perfect fitment with no modifications required.
- Reduces oil consumption and improves fuel efficiency.
- Crafted
from heat-treated aluminium alloy for strength and lightness.
- Ideal for rebuilds and long-term engine maintenance.
- Delivers smooth, quiet operation and precise tolerances for reliability.
Whether rebuilding a classic 911 or refreshing a modern Cayman, these pistons deliver precision-engineered performance with manufacturer-level accuracy.
Highlights:
- High-quality
OE Match replacement pistons for Porsche engines.
- Precision-machined for perfect tolerances and fitment.
- Manufactured from high-strength aluminium alloy.
- Restores engine compression, efficiency, and smooth performance.
- Compatible with both classic air-cooled and modern water-cooled models.
- Ideal for professional rebuilds, tuning, and restorations.