Öhlins O-ring 49.5x3 NBR70The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 00579-01 |
| Category | O-Rings |
| Inner Diameter | 49.5 mm |
| Cross Section | 3 mm |
| Material | NBR 70 |
| Country of Origin | Sweden |
DescriptionThe whole story▼
O-ring 49.5x3 NBR70, Öhlins part number 00579-01. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible.
Key Features
- Inner Diameter 49.5 mm
- Cross Section 3 mm
- Material NBR 70
- Original Öhlins service part
- Öhlins part number 00579-01
Where It Sits
Dimensionally this is 49.5 mm, 3 mm, NBR 70, which is how it is told apart from the rest of the range. Size is given as inner diameter and cross-section; a close size is not a match. Seal kits gather the pieces one rebuild needs, which avoids a second order mid-job. A leaking damper is not a cosmetic problem: it is a damper that has stopped controlling the wheel.
Genuine Service Part
The part is identical to what Öhlins fits in production — same supplier, same specification. An original part keeps the unit within its published specification; a near-equivalent quietly moves it. Service parts are supplied per piece unless the description says otherwise. Öhlins parts are unit-specific: a close dimension is not a substitute.
How to Be Sure It Fits
Öhlins identifies this position by the number 00579-01 in the exploded view for the unit it belongs to. Check inner diameter 49.5 mm, cross section 3 mm, material NBR 70 against what you have removed; a close size is not the same part. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost. A seal that has taken a set no longer springs back and starts to weep.
Fitting and Setup Service
We are an authorised Öhlins service centre, so you do not have to source the tools and the nitrogen: send us the damper and we rebuild it with the correct parts and the correct setting.
Specifications
- Brand: Öhlins
- Part Number: 00579-01
- Category: O-Rings
- Inner Diameter: 49.5 mm
- Cross Section: 3 mm
- Material: NBR 70
- Country of Origin: Sweden
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