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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram

OE MATCH

DISPLAYING 1 to 3 (of 3 products)
L3419
Product Information
Product Information
Cast Iron cylinder repair liners Porsche 996 3.4 / 3.6, 96.00mm Bore, flanged liner (No cutouts). 


westwood

Fits:
Porsche 996 3.4L Price is Each
Porsche 996 3.6L Price is Each
Porsche 997 3.6L Price is Each
Porsche Cayman 3.4L Price is Each
Porsche Boxster 3.4L Price is Each

Inside Diameter 96.00mm / 3.779inch
Outside Diameter 101.20mm / 3.984inch
Length 128.00mm / 5.039inch
Flange Diameter 106.65mm / 4.199inch
Flange Depth 5.00mm / 0.197inch

NEW Cast Iron cylinder liners suitable for repairing damaged Alusil bores in 996 engines.

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.

L3539/43
Product Information
Product Information
Ductile Iron cylinder liners Porsche 996 3.6L / 997 3.6L
Engine 3.6L, 96.00mm Bore, Ductile Iron flanged liners (With Hole and cutouts machined)

westwood

Fits:
Porsche 996 3.6L Price SET OF 6
Porsche 997 3.6L Price SET OF 6

Inside Diameter 96.00MM / 3.779inch

NEW Ductile Iron cylinder liners suitable for repairing damaged Alusil bores in 996 engines.

These New Ductile liners now have the cutouts and gudgeon pin hole already pre machined into the liners. The liners will only need to be bored and honed after fitment.

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 Ductile liners.
L3763
Product Information
Product Information
3.4 / 3.6, 96.00mm Bore, Wet Type liner for repairing top of the block (No cutouts).

  • Finish Bore Size:  96.00mm Less 0.50
  • Outside Diameter:  101.20mm
  • Overall Length:  127.75mm
  • Flange Diameter:  110.50mm
  • Flange Depth:  45.21mm

westwood

Fits:
Porsche 996 3.4L Price is Each
Porsche 996 3.6L Price is Each
Porsche 997 3.6L Price is Each
Porsche Cayman 3.4L Price is Each
Porsche Boxster 3.4L Price is Each

NEW Cast Iron cylinder liner suitable for repairing damaged Alusil bores in 996 / Cayman 3.4 / 3.6 engines, especially with "D" Chunk Damage

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.
DISPLAYING 1 to 3 (of 3 products)
About OE MATCH

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.

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