OE MATCH
Semi Finished bore 92.50mm
(Less 1.00mm for final finishing in bore)

Fits:
Porsche Cayenne V8
These liners are becoming very popular, with increasing numbers of cars suffering from scoring in the bores.
The liners will need to be fitted by a professional machine shop. You will not need to get special pistons or rings, as the original spec ones can be used with these cast iron liners.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
948100901XX
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne S 4.5L V8 2003-06
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.