Öhlins Shaft jet bleed 4.0Öhlins Shaft jet bleed 4.0
02 · Data & docs

The facts.

Technical data
BrandÖhlins
Part Number01021-03
CategoryJets
Country of OriginSweden
DescriptionThe whole story▼

Shaft jet bleed 4.0, Öhlins part number 01021-03. The piston carries the shim stacks and meters the oil; its port layout is what makes an Öhlins damper behave the way it does.

Key Features

  • Öhlins part number 01021-03
  • Original Öhlins service part

What It Is

There is no measurement to check here — the number and the exploded view identify it. The seat face has to be flat enough for the first shim to seal against it. A scored piston face means oil bypasses the shims entirely. A worn piston band lets oil past the outside of the piston, which shows up as damping that has gone soft.

Why the Original

The part number is the contract: it defines material, dimension and finish together. Suspension is one of the few areas where the original part is genuinely the cheaper decision. Service parts are supplied per piece unless the description says otherwise. Order by part number — descriptions repeat across sizes, numbers do not.

Identifying the Right Part

Order under 01021-03. Where several sizes share a description, only the number separates them. Where no measurement is given, the drawing position is what identifies the part. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable. A check valve holds pressure in one direction and opens in the other; a worn one lets damping bleed away.

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: 01021-03
  • Category: Jets
  • Country of Origin: Sweden
07 · Support

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08 · Paddock

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