Öhlins Seal head assy 50/18 lip seal
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number05129-18
CategorySeal Heads
Inner Diameter50 mm
Outer Diameter18 mm
Country of OriginSweden
DescriptionThe whole story▼

Seal head assy 50/18 lip seal, Öhlins part number 05129-18. A seal that has taken a set no longer springs back and starts to weep.

Key Features

  • Inner Diameter 50 mm
  • Outer Diameter 18 mm
  • Original Öhlins service part
  • Öhlins part number 05129-18

Where It Sits

Dimensionally this is 50 mm, 18 mm, which is how it is told apart from the rest of the range. Öhlins uses seals with a spring-loaded lip so they follow the shaft as it wears. Dust seals keep grit off the running surface; once they are torn, the oil seal behind them has a short life. Replacing seals at service intervals is far cheaper than replacing what a failed seal damages.

Why the Original

Öhlins is one of the few suspension makers that still supplies every position in the exploded view as a single part. Öhlins keeps service parts available for units long after they leave the current price list. For a full rebuild, the seal kit plus the wear parts is usually the sensible order. Where a number has been superseded, Öhlins states the replacement — we pass that on.

Getting the Number Right

The reliable route is the exploded drawing: find the position, read the number, order it — 05129-18 in this case. The published dimensions are inner diameter 50 mm, outer diameter 18 mm — measure the old part against them if you are unsure. 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. A seal that has taken a set no longer springs back and starts to weep.

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: 05129-18
  • Category: Seal Heads
  • Inner Diameter: 50 mm
  • Outer Diameter: 18 mm
  • Country of Origin: Sweden
07 · Support

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