{"product_id":"ohlins-o-ring-42x2-5-nbr70-00338-93","title":"Öhlins O-ring 42x2.5 NBR70 – 00338-93","description":"\u003cp\u003eO-ring 42x2.5 NBR70, Öhlins part number 00338-93. Assembly grease matters — the wrong compound swells the seal and it fails early.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 00338-93\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eMaterial NBR 70\u003c\/li\u003e\n\u003cli\u003eCross Section 2.5 mm\u003c\/li\u003e\n\u003cli\u003eInner Diameter 42 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFunction\u003c\/h2\u003e\u003cp\u003eDimensionally this is 42 mm, 2.5 mm, NBR 70, which is how it is told apart from the rest of the range. Nitrile, Viton and PTFE behave differently with temperature, and Öhlins picks per position. Öhlins specifies seal compounds for temperature stability rather than for the lowest unit cost. Dust seals keep grit off the running surface; once they are torn, the oil seal behind them has a short life.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eEvery part in this catalogue is one Öhlins fits itself during assembly and service. Parts remain available years after a unit leaves the current price list, which is unusual in this trade. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson. Order by part number. The dimensions below are the ones Öhlins publishes for it.\u003c\/p\u003e\u003ch2\u003eHow to Be Sure It Fits\u003c\/h2\u003e\u003cp\u003eIf the unit is already open, compare the dimensions below with the part in your hand before ordering 00338-93. Check inner diameter 42 mm, cross section 2.5 mm, material NBR 70 against what you have removed; a close size is not the same part. An oil seal that has hardened lets the shaft pass oil past it, and the damping fades long before the leak becomes visible. Cross-section is as important as diameter: an O-ring that is too thin will not seal at pressure.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eA damper rebuild is workshop work: it needs the unit dismantled, the shim stack rebuilt in the correct order and the gas charge reset. We are an authorised Öhlins service centre and do exactly that in house — send us the unit or ask us to fit the part with your order.\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 00338-93\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 42 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCross Section:\u003c\/em\u003e 2.5 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":53646888534282,"sku":"00338-93","price":23.25,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/00338-93_6a1369cf-9a77-482e-9483-98add09fa687.png?v=1788869231","url":"https:\/\/inter-pace.com\/en-fo\/products\/ohlins-o-ring-42x2-5-nbr70-00338-93","provider":"Inter-Pace","version":"1.0","type":"link"}