{"product_id":"hero-maestro-head-cover-gasket-12391kwp900s","title":"Hero Genuine Maestro Head Cover Gasket | Top Cover O Ring \/ Tappet Cover Packing | 12391KWP900S","description":"\u003ch2\u003eHero Genuine Maestro Head Cover Gasket\u003c\/h2\u003e\n\u003cp\u003eReplace a hardened, leaking, cut, flattened, or damaged head cover gasket with the \u003cstrong\u003eHero Genuine Maestro Head Cover Gasket\u003c\/strong\u003e. This genuine Hero gasket seals the cylinder head cover \/ tappet cover area on compatible Hero Maestro scooter engines and helps prevent engine oil seepage from the top cover when fitted correctly.\u003c\/p\u003e\n\u003cp\u003eThe part is commonly searched by scooter owners and mechanics as a \u003cstrong\u003ehead cover gasket, cylinder head cover gasket, tappet cover O-ring, top cover O-ring, valve cover gasket, head packing, or tappet cover packing\u003c\/strong\u003e. Choosing the correct genuine Hero gasket helps maintain proper sealing, correct shape, heat resistance, and engine-oil leak prevention compared to local or wrongly sized packing.\u003c\/p\u003e\n\u003cp\u003eThis SKU should be matched carefully with the old gasket and scooter variant before ordering. Head cover gaskets can differ by engine generation, cover profile, groove shape, sealing thickness, and part number, so exact part-number confirmation is important before fitment.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Product Is\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHero Genuine head cover gasket \/ tappet cover packing \/ top cover O-ring\u003c\/li\u003e\n\u003cli\u003eProduct identity: \u003cstrong\u003eGASKET, HEAD COVER\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart number: \u003cstrong\u003e12391KWP900S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFormatted part number: \u003cstrong\u003e12391-KWP-900S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCommon buyer\/mechanic terms: \u003cstrong\u003ehead cover gasket, cylinder head cover gasket, tappet cover O-ring, top cover O-ring, valve cover packing\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eApplication: Cylinder head cover sealing gasket for confirmed Hero Maestro variants\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Hero head cover gasket for compatible Maestro scooters\u003c\/li\u003e\n\u003cli\u003eCorrect replacement for part number \u003cstrong\u003e12391KWP900S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHelps seal the cylinder head cover \/ tappet cover area\u003c\/li\u003e\n\u003cli\u003eUseful for oil seepage, top cover leakage, hardened gasket, cut gasket, or repeated tappet-cover oil marks\u003c\/li\u003e\n\u003cli\u003eSupports proper groove fit when installed on the correct engine cover\u003c\/li\u003e\n\u003cli\u003eBetter sealing confidence than local or incorrectly shaped packing\u003c\/li\u003e\n\u003cli\u003eSingle gasket supplied\u003c\/li\u003e\n\u003cli\u003eQuantity per box: \u003cstrong\u003e1 unit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStrong search identity: head cover gasket, tappet cover O-ring, top cover O-ring, head packing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConfirmed Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHero Maestro (Feb., 2012)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHero Maestro (Oct., 2014)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo wider compatibility is being added for Maestro Edge, Maestro Edge 125, Duet, Destini, Pleasure, Pleasure Plus, Xoom, Activa, Jupiter, Access, or any other scooter unless the same part number is confirmed for that vehicle.\u003c\/p\u003e\n\n\u003ch3\u003eFitment Note \/ Return Prevention Note\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, match the existing gasket with part number \u003cstrong\u003e12391KWP900S\u003c\/strong\u003e \/ \u003cstrong\u003e12391-KWP-900S\u003c\/strong\u003e, the scooter model, engine generation, head cover groove shape, gasket profile, and old gasket size.\u003c\/p\u003e\n\u003cp\u003eDo not order this only by visual similarity. Head cover gaskets can look similar but differ in shape, thickness, and sealing profile. Match the old part number or confirm by VIN\/chassis-based parts lookup before purchase.\u003c\/p\u003e\n\n\u003ch3\u003eWhat You Will Receive\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Hero Genuine Head Cover Gasket\u003c\/li\u003e\n\u003cli\u003ePart number: \u003cstrong\u003e12391KWP900S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHead cover gasket \/ top cover O-ring only\u003c\/li\u003e\n\u003cli\u003eDoes \u003cstrong\u003enot\u003c\/strong\u003e include head cover, cylinder head, tappet cover bolts, washers, sealant, valve parts, engine oil, or any other engine components unless separately mentioned\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHero Genuine \/ Hero MotoCorp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e12391KWP900S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormatted Part Number\u003c\/td\u003e\n\u003ctd\u003e12391-KWP-900S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Description\u003c\/td\u003e\n\u003ctd\u003eGASKET, HEAD COVER\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Terms\u003c\/td\u003e\n\u003ctd\u003eHead cover gasket, cylinder head cover gasket, tappet cover O-ring, top cover O-ring, head packing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly Area\u003c\/td\u003e\n\u003ctd\u003eEngine cylinder head cover \/ tappet cover sealing area\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003eMaestro (Feb., 2012), Maestro (Oct., 2014)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e1 unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eScooter engine gasket \/ head cover seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment Sensitivity\u003c\/td\u003e\n\u003ctd\u003ePart number, engine generation, head cover groove, gasket shape, and sealing profile must match\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Note\u003c\/h3\u003e\n\u003cp\u003eProfessional installation is recommended. Before fitting, clean the head cover groove and mating surface properly, remove old gasket residue, check the cover for cracks or warping, and install the gasket without twisting or pinching. After installation, check for oil leakage after the engine reaches operating temperature.\u003c\/p\u003e\n\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1. What is Hero part number 12391KWP900S?\u003c\/strong\u003e\u003cbr\u003eIt is a Hero Genuine head cover gasket, also called a cylinder head cover gasket, top cover O-ring, tappet cover O-ring, or head packing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2. Which scooters is this gasket confirmed for?\u003c\/strong\u003e\u003cbr\u003eIt is confirmed for Hero Maestro (Feb., 2012) and Hero Maestro (Oct., 2014).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3. Is this the cylinder head gasket?\u003c\/strong\u003e\u003cbr\u003eNo. This is the head cover \/ tappet cover gasket. It should not be confused with the main cylinder head gasket.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4. Can this fit Maestro Edge, Duet, Destini, Pleasure, Xoom, Activa, Jupiter, or Access?\u003c\/strong\u003e\u003cbr\u003eNo wider compatibility is being claimed. Order only if your scooter requires part number \u003cstrong\u003e12391KWP900S\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5. When should the head cover gasket be replaced?\u003c\/strong\u003e\u003cbr\u003eReplace it if there is oil seepage from the tappet cover\/head cover area, the old gasket is hard or flattened, or the cover was opened during engine repair.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ6. Will this solve all engine oil leaks?\u003c\/strong\u003e\u003cbr\u003eIt can solve leakage from the head cover gasket area. If the head cover, bolts, breather, cylinder head, crankcase pressure, or another gasket is faulty, those parts should also be checked.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ7. Is this a genuine Hero spare part?\u003c\/strong\u003e\u003cbr\u003eYes, this listing is for a Hero Genuine head cover gasket with part number \u003cstrong\u003e12391KWP900S\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ8. How can I confirm fitment before ordering?\u003c\/strong\u003e\u003cbr\u003eMatch the part number, scooter model, engine generation, old gasket shape, and head cover groove. VIN\/chassis-based confirmation is recommended for best accuracy.\u003c\/p\u003e","brand":"Hero MotoCorp","offers":[{"title":"Default Title","offer_id":51457456668967,"sku":"12391KWP900S","price":83.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/82E40A73-0961-4CFB-A802-31A5721BD436.jpg?v=1780483224","url":"https:\/\/underthehood.co.in\/products\/hero-maestro-head-cover-gasket-12391kwp900s","provider":"UNDER THE HOOD","version":"1.0","type":"link"}