Öhlins Cylinder head Porsche 993 front
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number05594-01
CategoryCylinder Heads
Country of OriginSweden
DescriptionThe whole story▼

Cylinder head Porsche 993 front, Öhlins part number 05594-01. A head that has been over-tightened distorts and stops sealing.

Key Features

  • Original Öhlins service part
  • Öhlins part number 05594-01

Where It Sits

This position is identified by its number rather than by a dimension. Öhlins matches tube and piston as a pair during assembly, which is why the part numbers are specific. The tube carries the end cap threads, so damaged threads mean a new tube rather than a repair. The cylinder is one of the few damper parts that is genuinely wear-limited.

Original Öhlins Part

The tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. Öhlins publishes dimensions for its service parts so a workshop can verify before it fits. Service parts are ordered per piece unless stated otherwise. If you are between two sizes, send us the measurement and we will check it against the catalogue.

Getting the Number Right

The reliable route is the exploded drawing: find the position, read the number, order it — 05594-01 in this case. Where no measurement is given, the drawing position is what identifies the part. Öhlins machines the head so the bushing bore is concentric with the seal — otherwise the shaft wears one side. Öhlins turns and hones each tube to a defined roundness, because an out-of-round bore leaks past the piston.

Fitting and Setup Service

We are an authorised Öhlins service centre, so you do not have to source the tools and the nitrogen: send us the damper and we rebuild it with the correct parts and the correct setting.

Specifications

  • Brand: Öhlins
  • Part Number: 05594-01
  • Category: Cylinder Heads
  • Country of Origin: Sweden
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08 · Paddock

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