Öhlins Seal head 14/39The facts.
| Brand | Öhlins |
|---|---|
| Part Number | 21859-01 |
| Category | Seal Heads |
| Inner Diameter | 14 mm |
| Outer Diameter | 39 mm |
| Country of Origin | Sweden |
DescriptionThe whole story▼
Seal head 14/39, Öhlins part number 21859-01. A seal head combines the oil seal, the dust seal and the shaft bushing in one serviceable assembly.
Key Features
- Inner Diameter 14 mm
- Outer Diameter 39 mm
- Original Öhlins service part
- Öhlins part number 21859-01
What It Is
The published figures are 14 mm, 39 mm. Measure the old part against them before ordering. Seals are the part of a damper that decides whether it holds its gas charge and its oil, and they are the usual reason a unit ends up on the bench. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible. Head diameter and thread are specific to the tube it closes.
Original Öhlins Part
Every part in this catalogue is one Öhlins fits itself during assembly and service. Öhlins is one of the few suspension makers that still supplies every position in the exploded view as a single part. We can check the number against the Öhlins exploded view before you order — just ask. Öhlins parts are unit-specific: a close dimension is not a substitute.
Getting the Number Right
Order under 21859-01. Where several sizes share a description, only the number separates them. inner diameter 14 mm, outer diameter 39 mm is what distinguishes this number from its neighbours in the range. A leaking damper is not a cosmetic problem: it is a damper that has stopped controlling the wheel. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost.
Fitting and Setup Service
Öhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.
Specifications
- Brand: Öhlins
- Part Number: 21859-01
- Category: Seal Heads
- Inner Diameter: 14 mm
- Outer Diameter: 39 mm
- Country of Origin: Sweden
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