Öhlins O-ring 4.1x1.6 FKM70
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number00338-85
CategoryO-Rings
Inner Diameter4.1 mm
Cross Section1.6 mm
MaterialFKM 70
Country of OriginSweden
DescriptionThe whole story▼

O-ring 4.1x1.6 FKM70, Öhlins part number 00338-85. Size is given as inner diameter and cross-section; a close size is not a match.

Key Features

  • Original Öhlins service part
  • Öhlins part number 00338-85
  • Material FKM 70
  • Inner Diameter 4.1 mm
  • Cross Section 1.6 mm

What It Is

This one measures 4.1 mm, 1.6 mm, FKM 70, and those figures are what separate it from the neighbouring numbers. A leaking damper is not a cosmetic problem: it is a damper that has stopped controlling the wheel. O-ring sizes are given as inner diameter and cross-section, and both have to match — a close size is not a match. Dust seals keep grit off the running surface; once they are torn, the oil seal behind them has a short life.

Original Öhlins Part

Öhlins publishes dimensions for its service parts so a workshop can verify before it fits. Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. Öhlins parts are unit-specific: a close dimension is not a substitute. Order by part number — descriptions repeat across sizes, numbers do not.

How to Be Sure It Fits

00338-85 is the Öhlins number for this position — the same one printed in the service documentation. Öhlins states inner diameter 4.1 mm, cross section 1.6 mm, material FKM 70 for this number, and those figures are the deciding ones. The dust seal does the hard work: it keeps the grit that would score the shaft away from the oil seal. Öhlins recommends replacing seals whenever the unit is opened, not only when it leaks.

Fitting and Setup Service

Ask us about a full service: as an authorised Öhlins centre we strip, inspect, replace what is worn and set the unit back to its specification.

Specifications

  • Brand: Öhlins
  • Part Number: 00338-85
  • Category: O-Rings
  • Inner Diameter: 4.1 mm
  • Cross Section: 1.6 mm
  • Material: FKM 70
  • Country of Origin: Sweden
07 · Support

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