{"product_id":"ohlins-o-ring-39x3-00638-11","title":"Öhlins O-ring 39x3 – 00638-11","description":"\u003cp\u003eO-ring 39x3, Öhlins part number 00638-11. Static seals and dynamic seals are not interchangeable even in the same size.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCross Section 3 mm\u003c\/li\u003e\n\u003cli\u003eInner Diameter 39 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 00638-11\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eÖhlins gives it as 39 mm, 3 mm; nothing about that is approximate. Cross-section is as important as diameter: an O-ring that is too thin will not seal at pressure. The dust seal does the hard work: it keeps the grit that would score the shaft away from the oil seal. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost.\u003c\/p\u003e\u003ch2\u003eGenuine Service Part\u003c\/h2\u003e\u003cp\u003eBuying the individual part rather than a complete assembly is what makes servicing an Öhlins unit worthwhile. Öhlins is one of the few suspension makers that still supplies every position in the exploded view as a single part. If you are between two sizes, send us the measurement and we will check it against the catalogue. We can check the number against the Öhlins exploded view before you order — just ask.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003e00638-11 is the Öhlins number for this position — the same one printed in the service documentation. The published dimensions are inner diameter 39 mm, cross section 3 mm — measure the old part against them if you are unsure. O-rings are single-use in a pressurised damper — they are replaced whenever the unit is opened. Öhlins specifies the compound by position: NBR where oil is the concern, FKM where heat is.\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 00638-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e O-Rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eInner Diameter:\u003c\/em\u003e 39 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCross Section:\u003c\/em\u003e 3 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":53648916087050,"sku":"00638-11","price":5000.0,"currency_code":"PYG","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/00638-11_b1ff50be-bfed-4eae-952e-eada9da2cd2c.png?v=1788872599","url":"https:\/\/inter-pace.com\/en-py\/products\/ohlins-o-ring-39x3-00638-11","provider":"Inter-Pace","version":"1.0","type":"link"}