{"product_id":"piaggio-b015668-paraolio-lato-frizione-vespa-px-typhoon-50","title":"Piaggio B015668 Clutch Side Oil Seal 31x62.1 – Vespa PX 125\/150\/200 and Typhoon 50","description":"\u003cdiv style=\"font-family:'Segoe UI',Arial,sans-serif;max-width:900px;margin:0 auto;color:#222;line-height:1.7;\"\u003e\n\n\n\u003cp style=\"font-size:16px;\"\u003eThe \u003cstrong\u003ePiaggio B015668 oil seal\u003c\/strong\u003e is the original seal for the \u003cstrong\u003ecrankshaft clutch side\u003c\/strong\u003e of the \u003cstrong\u003eVespa PX\u003c\/strong\u003e. It measures \u003cstrong\u003e31 × 62.1 × 4.3 \/ 5.8 mm\u003c\/strong\u003e — the seal that Vespa spare parts call \"clutch side\" or \"KULU\" — and is the same reference also used on the first series of \u003cstrong\u003ePiaggio Typhoon 50\u003c\/strong\u003e. Product code B015668.\u003c\/p\u003e\n\n\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003e✓ Strengths\u003c\/h3\u003e\n\n\u003cul style=\"font-size:15px;\"\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eOriginal Piaggio spare part\u003c\/strong\u003e – this is the seal specified by the manufacturer, not an aftermarket equivalent.\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eExact size 31 × 62.1 × 4.3 \/ 5.8 mm\u003c\/strong\u003e – the double thickness (4.3 mm on the body, 5.8 mm on the shoulder) is what distinguishes this seal from a single-thickness 31×62×4.3.\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eDouble-stepped metal body\u003c\/strong\u003e – rigid external armor with an elastomer sealing lip: this construction withstands the heat and pressure of the clutch-side crankcase.\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eCovers multiple generations\u003c\/strong\u003e – from the PX E in historical catalogs to the PX 125 and 150 from 2011-2017 and the PX 125 30 Anni.\u003c\/li\u003e\n\n  \u003cli\u003e\n\n\u003cstrong\u003eIt is the part that determines the success of an overhaul\u003c\/strong\u003e – a leaking clutch-side oil seal allows false air in, leans out the carburetion, and sends the engine back to the workshop.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003e✓ Technical characteristics\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePiaggio\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCode\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eB015668\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eReplaced codes\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e431122, 242549, 242550, 226723\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOfficial designation\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eSealing ring\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMeasurements\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e31 × 62.1 × 4.3 \/ 5.8 mm (inner × outer × body thickness \/ shoulder thickness)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePosition on vehicle\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCrankshaft, clutch side\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eDouble-stepped metal outer armor, elastomer sealing lip\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePackage contents\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1 sealing ring\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eSpare part type\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eOriginal OEM – direct fit\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003cdiv style=\"background:#fff3cd;border-left:4px solid #ffc107;padding:14px;margin:20px 0;border-radius:4px;\"\u003e\n\n\u003cstrong\u003e⚠️ Important notes:\u003c\/strong\u003e\u003cbr\u003e\n• This is the \u003cstrong\u003eclutch-side\u003c\/strong\u003e oil seal. The \u003cstrong\u003eflywheel-side\u003c\/strong\u003e is a different reference with different measurements: if you are rebuilding the engine, you need both.\u003cbr\u003e\n• Check the measurement before ordering: \u003cstrong\u003e31 × 62.1 × 4.3 \/ 5.8 mm\u003c\/strong\u003e. A single-thickness 31×62×4.3 does not have the enlarged shoulder and will not seat the same way.\u003cbr\u003e\n• Installation requires \u003cstrong\u003edisassembly of the crankcase\u003c\/strong\u003e and must be done with an installation tool, with even pressure: an oil seal installed crooked or with a rolled lip will leak immediately.\u003cbr\u003e\n• It is a single-use part: once removed, it cannot be reinstalled.\u003cbr\u003e\n• The price refers to \u003cstrong\u003ea single piece\u003c\/strong\u003e.\u003c\/div\u003e\n\n\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003e✓ Vehicle compatibility\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\n  \u003ctr style=\"background:#e63946;color:#fff;\"\u003e\n\n\u003cth style=\"padding:8px;border:1px solid #ddd;text-align:left;\"\u003eModel\u003c\/th\u003e\n\n\u003cth style=\"padding:8px;border:1px solid #ddd;text-align:left;\"\u003eYears\u003c\/th\u003e\n\n\u003cth style=\"padding:8px;border:1px solid #ddd;text-align:left;\"\u003eVersions\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eVespa PX 125 (Classic)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1977-2016\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePX 125 E\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eVespa PX 150 (Classic)\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1977-2017\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePX 150 E, PX 150 E (US)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eVespa PX 200\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1977-2005\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePX 200 E\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eVespa PX 125\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2011-2017\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2T NOABS E3 (EMEA, APAC)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eVespa PX 125 30 Anni\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2007-2008\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e4T 2V NOABS E2 (EMEA)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eVespa PX 150\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2011-2017\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2T NOABS E3 (EMEA, APAC, LATAM)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePiaggio Typhoon 50 X\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1998-2000\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e50 2T\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePiaggio Typhoon 50 XR\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2001-2003\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e50 2T E1\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePiaggio Typhoon 50 M.Y. 2004\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2004\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e50 2T\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp style=\"font-size:14px;color:#555;\"\u003eThe list is taken from the official Piaggio spare parts catalog (B2B area). If you have any doubts, send us your scooter's frame number and we will verify the correct code.\u003c\/p\u003e\n\n\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003e✓ Perfect for whom\u003c\/h3\u003e\n\n\u003cp style=\"font-size:15px;\"\u003eIt's the part nobody looks at until the engine starts acting up. On the Vespa PX, the clutch-side oil seal maintains the seal between the crankcase and the clutch side of the crankshaft: when the lip hardens and leaks, \u003cstrong\u003efalse air\u003c\/strong\u003e enters, carburetion leans out, the idle becomes erratic, and the piston starts to suffer. It's the first thing an experienced Vespa owner replaces when opening the engine, along with the flywheel side. It is essential for anyone doing a complete overhaul, anyone chasing an oil leak on the clutch side, and for workshops restoring a vintage PX.\u003c\/p\u003e\n\n\n\u003cdiv style=\"background:#f0f7f0;border-left:4px solid #28a745;padding:14px;margin:20px 0;border-radius:4px;\"\u003e\n\n\u003cstrong\u003e🛡️ Warranty and Quality – Moon Bike S.r.l.\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eOriginal Piaggio\u003c\/strong\u003e spare part, new and never mounted. Moon Bike S.r.l. is based in Cercola (NA)\nand ships from Italy with invoice and manufacturer's warranty.\u003c\/div\u003e\n\n\n\u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eOn which vehicles can the B015668 oil seal be mounted?\u003c\/strong\u003e\u003cbr\u003e\nIt fits \u003cstrong\u003eVespa PX 125, 150, and 200\u003c\/strong\u003e, both the E versions from historical catalogs and the PX 125 and 150 from 2011-2017, and the PX 125 30 Anni from 2007-2008. The same reference is also used on the first series of \u003cstrong\u003ePiaggio Typhoon 50\u003c\/strong\u003e, in the X, XR, and M.Y. 2004 versions. The complete list with years is in the table above.\u003c\/p\u003e\n\n\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eWhere exactly is it located on the engine?\u003c\/strong\u003e\u003cbr\u003e\nIt is located on the \u003cstrong\u003ecrankshaft, clutch side\u003c\/strong\u003e: it is the sealing ring that separates the crankcase from the clutch side and prevents oil from passing and air from entering. To reach it, the clutch crankcase must be disassembled, so this is an operation performed with the engine open, typically during an overhaul.\u003c\/p\u003e\n\n\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eWhich codes does it replace?\u003c\/strong\u003e\u003cbr\u003e\nThe B015668 code is the current one and replaces the previous Piaggio references \u003cstrong\u003e431122, 242549, 242550, and 226723\u003c\/strong\u003e. If your workshop manual, your mechanic, or an older catalog gave you one of those numbers, this is the correct part: only the code changes, not the spare part.\u003c\/p\u003e\n\n\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eIs the flywheel-side oil seal also needed?\u003c\/strong\u003e\u003cbr\u003e\nIf you are opening the engine, it is advisable to change them in pairs: they are both as old as the engine, and repeating the job six months later for the other seal makes no sense. However, the flywheel side is a \u003cstrong\u003edifferent reference with different measurements\u003c\/strong\u003e: write to us and we will indicate the correct code for your model.\u003c\/p\u003e\n\n\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eIs it original or an equivalent?\u003c\/strong\u003e\u003cbr\u003e\nIt is an \u003cstrong\u003eoriginal Piaggio\u003c\/strong\u003e spare part, new and never mounted, with the B015668 code specified by the manufacturer. It is not an aftermarket equivalent or a reproduction. Moon Bike S.r.l. is an authorized dealer of the Piaggio Group and ships from Italy with invoice and manufacturer's warranty.\u003c\/p\u003e\n\n\n\u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eHow can I be sure it's the right one?\u003c\/strong\u003e\u003cbr\u003e\nCompare the model and year with the compatibility table and verify the measurement on the disassembled part: it must be \u003cstrong\u003e31 × 62.1 mm\u003c\/strong\u003e with a double thickness of 4.3 \/ 5.8. If you still have doubts, write us your scooter's frame number and we will check the official catalog for the correct code for that frame.\u003c\/p\u003e\n\n\n\n\u003c\/div\u003e","brand":"Piaggio","offers":[{"title":"Default Title","offer_id":58736913416540,"sku":"B015668","price":9.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3660\/0668\/files\/piaggio-b015668-paraolio-albero-motore-lato-frizione-vespa-px-31x62.png?v=1787244013","url":"https:\/\/www.moonbikesrl.it\/en-us\/products\/piaggio-b015668-paraolio-lato-frizione-vespa-px-typhoon-50","provider":"Moon Bike S.r.l.","version":"1.0","type":"link"}