Öhlins Cylinder tube 25/279
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number21624-01
CategoryCylinder Tubes
Diameter25 mm
Length279 mm
Country of OriginSweden
DescriptionThe whole story▼

Cylinder tube 25/279, Öhlins part number 21624-01. Wall thickness and bore finish are what let a cylinder hold pressure without deforming under load.

Key Features

  • Original Öhlins service part
  • Diameter 25 mm
  • Öhlins part number 21624-01
  • Length 279 mm

What It Is

This one measures 25 mm, 279 mm, and those figures are what separate it from the neighbouring numbers. Öhlins matches tube and piston as a pair during assembly, which is why the part numbers are specific. Diameter and length together identify the tube — both are specific to the damper it came from. Öhlins turns and hones each tube to a defined roundness, because an out-of-round bore leaks past the piston.

Genuine Service Part

The part number is the contract: it defines material, dimension and finish together. Rebuilding to specification only works if the parts are to specification — that starts here. Tell us the damper's model designation and year and we will match the number for you. If you are unsure which number your unit takes, send us the model and serial number of the damper and we will look it up.

Getting the Number Right

Öhlins identifies this position by the number 21624-01 in the exploded view for the unit it belongs to. Öhlins states diameter 25 mm, length 279 mm for this number, and those figures are the deciding ones. The tube carries the end cap threads, so damaged threads mean a new tube rather than a repair. Öhlins matches tube and piston as a pair during assembly, which is why the part numbers are specific.

Fitting and Setup Service

Fitting service parts means opening a pressurised unit. As an authorised Öhlins service centre we do that here, with the right tools and a dyno check afterwards — just ask.

Specifications

  • Brand: Öhlins
  • Part Number: 21624-01
  • Category: Cylinder Tubes
  • Diameter: 25 mm
  • Length: 279 mm
  • Country of Origin: Sweden
07 · Support

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08 · Paddock

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