The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 15409-02 |
| Category | Piston Bands |
| Dimension A | 22 mm |
| Dimension B | 20 mm |
| Dimension C | 5 mm |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Piston ring 22/20/5 uncut, Öhlins part number 15409-02. 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
- Dimension C 5 mm
- Öhlins part number 15409-02
- Dimension A 22 mm
- Original Öhlins service part
- Dimension B 20 mm
What It Is
At 22 mm, 20 mm, 5 mm it fits one position only; the next size up carries a different number. A scored piston face means oil bypasses the shims entirely. Öhlins machines its pistons rather than sintering them, which is why the port edges stay sharp. Öhlins machines the ports rather than casting them, so the edges stay sharp and the flow predictable.
Why the Original
Öhlins supports units that are decades old, which is why the spare parts list runs to thousands of numbers. An original part keeps the unit within its published specification; a near-equivalent quietly moves it. Order by part number — descriptions repeat across sizes, numbers do not. We can supply the whole position from the drawing rather than the single piece if that is easier.
Identifying the Right Part
Öhlins identifies this position by the number 15409-02 in the exploded view for the unit it belongs to. Öhlins states dimension a 22 mm, dimension b 20 mm, dimension c 5 mm for this number, and those figures are the deciding ones. Bands are consumables and are replaced at every rebuild. Jets meter fixed bleed flow and are sized in tenths of a millimetre.
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: 15409-02
- Category: Piston Bands
- Dimension A: 22 mm
- Dimension B: 20 mm
- Dimension C: 5 mm
- Country of Origin: Sweden
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