Mahle Engine Cylinder
Fits:
Porsche 993 3.6L C2 / C4 1994>>
Supplementary Article/Supplementary Info with piston rings
Cylinder Bore [mm] 100 mm
Length [mm] 63,2 mm
Compression Height [mm] 31,8 mm
Valve pocket depth 2 [mm] 47,3 mm
Top land height [mm] 6,2 mm
Bolt Ø [mm] 23 mm
Bolt length [mm] 54 mm
Surface Tin-plated
Production Number 100 P 47
Please note: These pistons will need to be purchased as 6 pcs. Singles are not available. Price displayed is for each piston.
This set should only be fitted by engine builders or tuners as other parts may be required.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
503WR45
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
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12 Month Warranty
Worldwide Delivery
Express Delivery
Free delivery
Fits:
Porsche 993 Turbo 3.6L 1994>>
Cylinder Bore: 100 mm
Length: 63,3 mm
Compression Height: 31,8 mm
Top land height: 6,1 mm
Bolt Ø : 23 mm
Bolt length: 54 mm
Surface: Coated
Production Number: 100 P 46
Please note: These pistons will need to be purchased as 6 pcs. Singles are not available. Price displayed is for each piston.
This set should only be fitted by engine builders or tuners as other parts may be required.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
503WR44
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
Shop Securely
12 Month Warranty
Worldwide Delivery
Free delivery
High-Precision Mahle Engine Cylinders for Reliable, Long-Lasting Porsche Engine Rebuilds
Mahle engine cylinders—often referred to as cylinder barrels—are renowned for their exceptional engineering quality, precise tolerances and long-term durability. These components form the outer wall of the combustion chamber and must withstand intense pressure, heat and vibration. Mahle’s advanced casting and plating technologies make their cylinders one of the most trusted choices for Porsche engine rebuilds, from classic air-cooled engines to higher-output modern variants.
Whether restoring an original engine or upgrading performance characteristics, Mahle cylinders provide optimal heat dissipation, improved sealing surfaces and reliable structural strength essential for consistent combustion and long-term engine health.
What Mahle Engine Cylinders Do
Mahle cylinders play several critical roles within an
internal combustion engine:
- Provide
a durable, perfectly round bore for piston movement
- Maintain
correct compression by offering a smooth, stable sealing surface
- Withstand
high combustion pressures in performance and turbo applications
- Assist
with thermal management, dissipating heat from the combustion chamber
- Support
piston rings to maintain proper sealing and minimise blow-by
- Ensure longevity by resisting wear, distortion and scoring
Mahle’s reputation for dimensional accuracy ensures consistent performance even in demanding driving conditions.
Why Engine Cylinders Commonly Fail
Even high-quality cylinders experience wear over time due to
harsh operating environments. Common causes of cylinder failure include:
- Cylinder
scoring from oil contamination or lubrication failure
- Overheating,
causing expansion or distortion of the cylinder wall
- Incorrect
air-fuel mixture leading to detonation and surface damage
- High
mileage wear, enlarging the bore or reducing roundness
- Corrosion,
especially in engines stored for long periods
- Piston
ring wear causing uneven cylinder wall polishing
- Thermal cycling fatigue, weakening structural integrity
Symptoms may include low compression, excessive oil consumption, reduced power, smoking exhaust or poor overall engine efficiency.
