Öhlins O-ring 10x2.5 FKM 70
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number03338-88
CategoryO-Rings
Inner Diameter10 mm
Cross Section2.5 mm
MaterialFKM 70
Country of OriginSweden
DescriptionThe whole story▼

O-ring 10x2.5 FKM 70, Öhlins part number 03338-88. Seals are the part of a damper that decides whether it holds its gas charge and its oil, and they are the usual reason a unit ends up on the bench.

Key Features

  • Cross Section 2.5 mm
  • Original Öhlins service part
  • Inner Diameter 10 mm
  • Öhlins part number 03338-88
  • Material FKM 70

Function

03338-88 is the 10 mm, 2.5 mm, FKM 70 version — Öhlins lists each size separately. The groove does half the work: the ring only seals if the groove is clean and undamaged. Seal kits gather the pieces one rebuild needs, which avoids a second order mid-job. O-ring sizes are given as inner diameter and cross-section, and both have to match — a close size is not a match.

Genuine Service Part

Parts remain available years after a unit leaves the current price list, which is unusual in this trade. The part is identical to what Öhlins fits in production — same supplier, same specification. If you are between two sizes, send us the measurement and we will check it against the catalogue. Order by part number — descriptions repeat across sizes, numbers do not.

How to Be Sure It Fits

The reliable route is the exploded drawing: find the position, read the number, order it — 03338-88 in this case. Öhlins states inner diameter 10 mm, cross section 2.5 mm, material FKM 70 for this number, and those figures are the deciding ones. Nitrile, Viton and PTFE behave differently with temperature, and Öhlins picks per position. A ring that has taken a set no longer springs back and starts to weep under pressure.

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: 03338-88
  • Category: O-Rings
  • Inner Diameter: 10 mm
  • Cross Section: 2.5 mm
  • Material: FKM 70
  • Country of Origin: Sweden
07 · Support

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08 · Paddock

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