The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21922-01 |
| Category | Seal Heads |
| Inner Diameter | 10 mm |
| Outer Diameter | 31 mm |
| Thickness | 40 mm |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Cap seal head 10/31/40, Öhlins part number 21922-01. Öhlins uses seals with a spring-loaded lip so they follow the shaft as it wears.
Key Features
- Öhlins part number 21922-01
- Original Öhlins service part
- Outer Diameter 31 mm
- Inner Diameter 10 mm
- Thickness 40 mm
Where It Sits
Öhlins publishes 10 mm, 31 mm, 40 mm for 21922-01 — the dimensions are the identity of the part. Seal kits gather the pieces one rebuild needs, which avoids a second order mid-job. Head diameter and thread are specific to the tube it closes. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost.
Why the Original
Öhlins supports units that are decades old, which is why the spare parts list runs to thousands of numbers. Rebuilding to specification only works if the parts are to specification — that starts here. The Öhlins exploded view names the number for each position; we can look it up if you do not have it. Service parts are supplied per piece unless the description says otherwise.
Identifying the Right Part
21922-01 is the Öhlins number for this position — the same one printed in the service documentation. Öhlins states inner diameter 10 mm, outer diameter 31 mm, thickness 40 mm for this number, and those figures are the deciding ones. Öhlins builds the head so the dust seal takes the grit before it reaches the oil seal. Seal heads combine the oil seal, the dust seal and the bushing in one assembly.
Fitting and Setup Service
If you would rather not open the damper yourself, we can do it — we are an authorised Öhlins service centre and rebuild these units as a matter of routine.
Specifications
- Brand: Öhlins
- Part Number: 21922-01
- Category: Seal Heads
- Inner Diameter: 10 mm
- Outer Diameter: 31 mm
- Thickness: 40 mm
- Country of Origin: Sweden
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