{"product_id":"ohlins-o-ring-53-7x1-78-nbr70-00438-70","title":"Öhlins O-ring 53,7x1,78 NBR70 – 00438-70","description":"\u003cp\u003eO-ring 53,7x1,78 NBR70, Öhlins part number 00438-70. Seals harden with heat and age even when the machine has not been ridden much.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCross Section 1.78 mm\u003c\/li\u003e\n\u003cli\u003eInner Diameter 53.7 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eMaterial NBR 70\u003c\/li\u003e\n\u003cli\u003eÖhlins part number 00438-70\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eThe published figures are 53.7 mm, 1.78 mm, NBR 70. Measure the old part against them before ordering. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible. An O-ring seals by being squeezed into its groove; the cross-section is therefore as important as the diameter. Öhlins specifies the compound by position: NBR where oil is the concern, FKM where heat is.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eSuspension is one of the few areas where the original part is genuinely the cheaper decision. The tolerances here are the ones the unit was assembled to, not a pattern equivalent's interpretation of them. Send us the model and serial number of your unit and we will confirm the position before you order. Where a number has been superseded, Öhlins states the replacement — we pass that on.\u003c\/p\u003e\u003ch2\u003eIdentifying the Right Part\u003c\/h2\u003e\u003cp\u003eIf the unit is already open, compare the dimensions below with the part in your hand before ordering 00438-70. Check inner diameter 53.7 mm, cross section 1.78 mm, material NBR 70 against what you have removed; a close size is not the same part. A leaking damper is not a cosmetic problem: it is a damper that has stopped controlling the wheel. Seals harden with heat and age even when the machine has not been ridden much.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eFitting service parts means opening a pressurised unit. As an authorised Öhlins service centre we do that here, with the right tools and a dyno check afterwards — just ask.\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 00438-70\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 53.7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCross Section:\u003c\/em\u003e 1.78 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eMaterial:\u003c\/em\u003e NBR 70\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":53646902526218,"sku":"00438-70","price":0.82,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/00438-70_669e896c-f8d8-4a36-93e3-39266bd92387.png?v=1788869430","url":"https:\/\/inter-pace.com\/products\/ohlins-o-ring-53-7x1-78-nbr70-00438-70","provider":"Inter-Pace","version":"1.0","type":"link"}