{"product_id":"ohlins-shaft-jet-bleed-4-m7-37-7-05621-03","title":"Öhlins Shaft jet bleed 4\/M7\/37.7 – 05621-03","description":"\u003cp\u003eShaft jet bleed 4\/M7\/37.7, Öhlins part number 05621-03. The piston carries the shim stacks and meters the oil; its port layout is what makes an Öhlins damper behave the way it does.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eÖhlins part number 05621-03\u003c\/li\u003e\n\u003cli\u003eDiameter 7 mm\u003c\/li\u003e\n\u003cli\u003eOriginal Öhlins service part\u003c\/li\u003e\n\u003cli\u003eThread M7\u003c\/li\u003e\n\u003cli\u003eLength 37.7 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere It Sits\u003c\/h2\u003e\u003cp\u003eÖhlins gives it as 7 mm, 37.7 mm; nothing about that is approximate. Piston bands are consumables — they wear against the bore and lose their seal gradually. Port area sets how much oil can pass before the shims begin to lift. Replacing a piston is a workshop job because the shim stack has to be rebuilt in the correct order.\u003c\/p\u003e\u003ch2\u003eWhy the Original\u003c\/h2\u003e\u003cp\u003eParts remain available years after a unit leaves the current price list, which is unusual in this trade. Rebuilding to specification only works if the parts are to specification — that starts here. Ask us before ordering if you are unsure: a wrong part in a pressurised unit is an expensive lesson. If you are unsure which number your unit takes, send us the model and serial number of the damper and we will look it up.\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 — 05621-03 in this case. Öhlins states diameter 7 mm, length 37.7 mm for this number, and those figures are the deciding ones. Replacing a piston is a workshop job because the shim stack has to be rebuilt in the correct order. Needle geometry sets the shape of the adjustable range, not just its size.\u003c\/p\u003e\u003ch2\u003eFitting and Setup Service\u003c\/h2\u003e\u003cp\u003eÖhlins recommends that its units are serviced by an authorised centre. We are one: rebuild, revalve and setup all happen in our own workshop.\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 05621-03\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eCategory:\u003c\/em\u003e Jets\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eDiameter:\u003c\/em\u003e 7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eLength:\u003c\/em\u003e 37.7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eThread:\u003c\/em\u003e M7\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":53649967841546,"sku":"05621-03","price":9.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/05621-03_a614a1b1-2785-4328-a5b6-27ad15bdfe4b.png?v=1788876904","url":"https:\/\/inter-pace.com\/products\/ohlins-shaft-jet-bleed-4-m7-37-7-05621-03","provider":"Inter-Pace","version":"1.0","type":"link"}