Öhlins Seal Nut M28x1Öhlins Seal Nut M28x1
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number15561-01
CategorySeals
ThreadM28x1
Country of OriginSweden
DescriptionThe whole story▼

Seal Nut M28x1, Öhlins part number 15561-01. The dust seal does the hard work: it keeps the grit that would score the shaft away from the oil seal.

Key Features

  • Thread M28x1
  • Öhlins part number 15561-01
  • Original Öhlins service part

What It Is

At thread M28x1 it fits one position only; the next size up carries a different number. The dust seal does the hard work: it keeps the grit that would score the shaft away from the oil seal. Assembly grease matters — the wrong compound swells the seal and it fails early. Dust seals keep grit off the running surface; once they are torn, the oil seal behind them has a short life.

Genuine Service Part

This is an original Öhlins part, not an aftermarket equivalent — the tolerances are the ones the unit was assembled to. Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. We can supply the whole position from the drawing rather than the single piece if that is easier. If the unit is already apart, compare the published dimensions with the part in your hand.

Identifying the Right Part

Order under 15561-01. Where several sizes share a description, only the number separates them. The thread is M28x1. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible. Assembly grease matters — the wrong compound swells the seal and it fails early.

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: 15561-01
  • Category: Seals
  • Thread: M28x1
  • Country of Origin: Sweden
07 · Support

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08 · Paddock

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