{"product_id":"ohlins-seal-head-assy-14-36-21025-05","title":"Öhlins Seal head assy 14\/36 – 21025-05","description":"\u003cp\u003eSeal head assy 14\/36, Öhlins part number 21025-05. O-ring sizes are given as inner diameter and cross-section, and both have to match — a close size is not a match.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eOuter Diameter 36 mm\u003c\/li\u003e\n\u003cli\u003eInner Diameter 14 mm\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 21025-05\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003e21025-05 is the 14 mm, 36 mm version — Öhlins lists each size separately. The bushing inside carries the side load so the seal only has to seal. Assembly grease matters — the wrong compound swells the seal and it fails early. Nitrile, Viton and PTFE behave differently with temperature, and Öhlins picks per position.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eÖhlins manufactures service parts on the same lines as production parts — there is no second quality. Öhlins numbers every position so a workshop can order precisely what it needs, not a whole assembly. We can check the number against the Öhlins exploded view before you order — just ask. If you are between two sizes, send us the measurement and we will check it against the catalogue.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003eThe reliable route is the exploded drawing: find the position, read the number, order it — 21025-05 in this case. Check inner diameter 14 mm, outer diameter 36 mm against what you have removed; a close size is not the same part. Öhlins builds the head so the dust seal takes the grit before it reaches the oil seal. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eWe 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.\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 21025-05\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 14 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eOuter Diameter:\u003c\/em\u003e 36 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":53652479049994,"sku":"21025-05","price":1770.36,"currency_code":"MXN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/21025-05_8fe8f658-12da-44cc-9f70-cd0e408a3200.png?v=1788879341","url":"https:\/\/inter-pace.com\/en-mx\/products\/ohlins-seal-head-assy-14-36-21025-05","provider":"Inter-Pace","version":"1.0","type":"link"}