{"product_id":"ohlins-seal-head-8-3-25-2-22-21817-02","title":"Öhlins Seal head 8.3\/25.2\/22 – 21817-02","description":"\u003cp\u003eSeal head 8.3\/25.2\/22, Öhlins part number 21817-02. The dust seal does the hard work: it keeps the grit that would score the shaft away from the oil seal.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThickness 22 mm\u003c\/li\u003e\n\u003cli\u003eOuter Diameter 25.2 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21817-02\u003c\/li\u003e\n\u003cli\u003eInner Diameter 8.3 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003e8.3 mm, 25.2 mm, 22 mm: that is the whole specification, and it has to match what came out. Seal kits gather the pieces one rebuild needs, which avoids a second order mid-job. A seal that has taken a set no longer springs back and starts to weep. A leaking damper is not a cosmetic problem: it is a damper that has stopped controlling the wheel.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eThe tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. An original part keeps the unit within its published specification; a near-equivalent quietly moves it. Service parts are ordered per piece unless stated otherwise. Öhlins parts are unit-specific: a close dimension is not a substitute.\u003c\/p\u003e\u003ch2\u003eGetting the Number Right\u003c\/h2\u003e\u003cp\u003e21817-02 is the Öhlins number for this position — the same one printed in the service documentation. Check inner diameter 8.3 mm, outer diameter 25.2 mm, thickness 22 mm against what you have removed; a close size is not the same part. Seal heads combine the oil seal, the dust seal and the bushing in one assembly. Öhlins recommends replacing seals whenever the unit is opened, not only when it leaks.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eAsk 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.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eBrand:\u003c\/em\u003e Öhlins\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePart Number:\u003c\/em\u003e 21817-02\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Seal Heads\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 8.3 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eOuter Diameter:\u003c\/em\u003e 25.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eThickness:\u003c\/em\u003e 22 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCountry of Origin:\u003c\/em\u003e Sweden\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Öhlins","offers":[{"title":"Default Title","offer_id":53651758907658,"sku":"21817-02","price":76.0,"currency_code":"PGK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21817-02_a6583131-2a3e-4331-a444-4f16abe2e6dc.png?v=1788877865","url":"https:\/\/inter-pace.com\/en-pg\/products\/ohlins-seal-head-8-3-25-2-22-21817-02","provider":"Inter-Pace","version":"1.0","type":"link"}