The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21663-04 |
| Category | Guides |
| Inner Diameter | 12 mm |
| Outer Diameter | 260 mm |
| Length | 25 mm |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Guide sleeve 12/260/25, Öhlins part number 21663-04. Sleeves position parts axially and often set the preload on a stack.
Key Features
- Outer Diameter 260 mm
- Inner Diameter 12 mm
- Original Öhlins service part
- Length 25 mm
- Öhlins part number 21663-04
Where It Sits
This one measures 12 mm, 260 mm, 25 mm, and those figures are what separate it from the neighbouring numbers. A worn bushing lets the shaft move off centre, and the seal is the next thing to fail. Öhlins uses PTFE-coated bushings for a low breakaway force. Worn bushings show up as a knock over sharp edges before they show up as a leak.
Genuine Service Part
Öhlins numbers every position so a workshop can order precisely what it needs, not a whole assembly. The part is identical to what Öhlins fits in production — same supplier, same specification. If the unit is already apart, compare the published dimensions with the part in your hand. If you are between two sizes, send us the measurement and we will check it against the catalogue.
How to Be Sure It Fits
21663-04 is the Öhlins number for this position — the same one printed in the service documentation. inner diameter 12 mm, outer diameter 260 mm, length 25 mm is what distinguishes this number from its neighbours in the range. Sleeves position parts axially and often set the preload on a stack. A bushing is a consumable and is replaced at rebuild rather than reused.
Fitting and Setup Service
A damper rebuild is workshop work: it needs the unit dismantled, the shim stack rebuilt in the correct order and the gas charge reset. We are an authorised Öhlins service centre and do exactly that in house — send us the unit or ask us to fit the part with your order.
Specifications
- Brand: Öhlins
- Part Number: 21663-04
- Category: Guides
- Inner Diameter: 12 mm
- Outer Diameter: 260 mm
- Length: 25 mm
- Country of Origin: Sweden
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