Öhlins O-ring 80x2.5 NBR70The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 00438-40 |
| Category | O-Rings |
| Inner Diameter | 80 mm |
| Cross Section | 2.5 mm |
| Material | NBR 70 |
| Country of Origin | Sweden |
DescriptionThe whole story▼
O-ring 80x2.5 NBR70, Öhlins part number 00438-40. 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
- Original Öhlins service part
- Cross Section 2.5 mm
- Inner Diameter 80 mm
- Material NBR 70
- Öhlins part number 00438-40
Where It Sits
Öhlins publishes 80 mm, 2.5 mm, NBR 70 for 00438-40 — the dimensions are the identity of the part. A ring that has taken a set no longer springs back and starts to weep under pressure. Seal kits gather the pieces one rebuild needs, which avoids a second order mid-job. Seals harden with heat and age even when the machine has not been ridden much.
Why the Original
Öhlins publishes dimensions for its service parts so a workshop can verify before it fits. A damper that can be rebuilt is a damper that stays on the bike; that is the whole argument for original service parts. If the unit is already apart, compare the published dimensions with the part in your hand. Öhlins numbers do not follow a logic you can guess — always read them from the documentation.
Identifying the Right Part
00438-40 is the Öhlins number for this position — the same one printed in the service documentation. The published dimensions are inner diameter 80 mm, cross section 2.5 mm, material NBR 70 — measure the old part against them if you are unsure. Seals harden with heat and age even when the machine has not been ridden much. Replacing seals at service intervals is far cheaper than replacing what a failed seal damages.
Fitting and Setup Service
Ask us about a full service: as an authorised Öhlins centre we strip, inspect, replace what is worn and set the unit back to its specification.
Specifications
- Brand: Öhlins
- Part Number: 00438-40
- Category: O-Rings
- Inner Diameter: 80 mm
- Cross Section: 2.5 mm
- Material: NBR 70
- Country of Origin: Sweden
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