Öhlins O-ring 5.1x1.6 FKMThe facts.
| Brand | Öhlins |
|---|---|
| Part Number | 03577-01 |
| Category | O-Rings |
| Inner Diameter | 5.1 mm |
| Cross Section | 1.6 mm |
| Material | FKM |
| Country of Origin | Sweden |
DescriptionThe whole story▼
O-ring 5.1x1.6 FKM, Öhlins part number 03577-01. Öhlins specifies the compound by position: NBR where oil is the concern, FKM where heat is.
Key Features
- Original Öhlins service part
- Öhlins part number 03577-01
- Material FKM
- Inner Diameter 5.1 mm
- Cross Section 1.6 mm
Where It Sits
Öhlins publishes 5.1 mm, 1.6 mm, FKM for 03577-01 — the dimensions are the identity of the part. Dust seals keep grit off the running surface; once they are torn, the oil seal behind them has a short life. An O-ring seals by being squeezed into its groove; the cross-section is therefore as important as the diameter. Size is given as inner diameter and cross-section; a close size is not a match.
Genuine Service Part
The tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. Öhlins lists this part under its own number in the service catalogue so a workshop can order exactly what it needs. If you are between two sizes, send us the measurement and we will check it against the catalogue. Service parts are supplied per piece unless the description says otherwise.
How to Be Sure It Fits
The reliable route is the exploded drawing: find the position, read the number, order it — 03577-01 in this case. The published dimensions are inner diameter 5.1 mm, cross section 1.6 mm, material FKM — measure the old part against them if you are unsure. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible.
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: 03577-01
- Category: O-Rings
- Inner Diameter: 5.1 mm
- Cross Section: 1.6 mm
- Material: FKM
- Country of Origin: Sweden
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