{"product_id":"royal-enfield-571091-a-flange-inlet-manifold-bullet-classic-500-himalayan","title":"Royal Enfield Flange \/ Inlet Manifold for Bullet 500 EFI, Classic 500 EFI \u0026 Himalayan 410 EFI – 571091\/A","description":"\u003ch2\u003eRoyal Enfield Flange \/ Inlet Manifold for Bullet 500 EFI, Classic 500 EFI \u0026amp; Himalayan 410 EFI – 571091\/A\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e571091\/A\u003c\/strong\u003e is a genuine Royal Enfield \u003cstrong\u003eflange \/ inlet manifold\u003c\/strong\u003e used in the EFI intake side of select Royal Enfield motorcycles. Your product photos clearly show the factory pack label as \u003cstrong\u003eFLANGE\u003c\/strong\u003e, which is important because this part should not be confused with \u003cstrong\u003e572304\/A\u003c\/strong\u003e, the adaptor with PAV connection. Trusted fiche-style and dealer references also identify \u003cstrong\u003e571091\u003c\/strong\u003e as \u003cstrong\u003eFLANGE\u003c\/strong\u003e or \u003cstrong\u003eINLET MANIFOLD, 500cc\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis part is commonly searched as \u003cstrong\u003eRoyal Enfield inlet manifold\u003c\/strong\u003e, \u003cstrong\u003eEFI flange\u003c\/strong\u003e, \u003cstrong\u003eintake flange\u003c\/strong\u003e, \u003cstrong\u003ethrottle body flange\u003c\/strong\u003e, and \u003cstrong\u003emanifold rubber \/ flange\u003c\/strong\u003e. Current fiche-style source coverage supports use on \u003cstrong\u003eBullet 500 EFI\u003c\/strong\u003e, \u003cstrong\u003eClassic 500 EFI\u003c\/strong\u003e, and also \u003cstrong\u003eHimalayan 410 Euro 4 EFI\u003c\/strong\u003e. That makes this a hard-to-find but important intake-side flange part for EFI bikes where the original piece is cracked, hardened, leaking, or damaged.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore you buy:\u003c\/strong\u003e match the old part’s shape, inner bore, mounting pattern, and confirm whether your bike uses the \u003cstrong\u003eplain flange type\u003c\/strong\u003e or the separate \u003cstrong\u003ePAV adaptor type\u003c\/strong\u003e. If your old part has the PAV adaptor arrangement, check \u003cstrong\u003e572304\/A\u003c\/strong\u003e separately.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Royal Enfield OEM intake flange \/ inlet manifold\u003c\/li\u003e\n\u003cli\u003ePart number: 571091\/A\u003c\/li\u003e\n\u003cli\u003eFactory pack label in your photos reads FLANGE\u003c\/li\u003e\n\u003cli\u003eDealer reference wording also includes Inlet Manifold, 500cc\u003c\/li\u003e\n\u003cli\u003eUsed in EFI intake\/manifold connection area\u003c\/li\u003e\n\u003cli\u003eConfirmed source support for Bullet 500 EFI, Classic 500 EFI, and Himalayan 410 EFI\u003c\/li\u003e\n\u003cli\u003eDistinct from 572304\/A, which is the adaptor with PAV connection\u003c\/li\u003e\n\u003cli\u003eUseful for cracked, leaking, hardened, or damaged intake flange replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility Table\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003ePlatform\/Engine\u003c\/th\u003e\n\u003cth\u003eBS\/Emission\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eStatus\u003c\/th\u003e\n\u003cth\u003eNotes\/Constraints\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBullet 500 EFI\u003c\/td\u003e\n\u003ctd\u003eUCE 499cc EFI\u003c\/td\u003e\n\u003ctd\u003eEuro 4 \/ EFI\u003c\/td\u003e\n\u003ctd\u003eVaries by market\u003c\/td\u003e\n\u003ctd\u003eConfirmed\u003c\/td\u003e\n\u003ctd\u003eShown in Bullet 500 EFI fuel-injection context.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClassic 500 EFI\u003c\/td\u003e\n\u003ctd\u003eUCE 499cc EFI\u003c\/td\u003e\n\u003ctd\u003eEuro 3 \/ Euro 4 EFI trail\u003c\/td\u003e\n\u003ctd\u003eVaries by market\u003c\/td\u003e\n\u003ctd\u003eConfirmed\u003c\/td\u003e\n\u003ctd\u003eShown in Classic 500 EFI fuel-injection context.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHimalayan 410 EFI\u003c\/td\u003e\n\u003ctd\u003eLS410 EFI\u003c\/td\u003e\n\u003ctd\u003eEuro 4\u003c\/td\u003e\n\u003ctd\u003eVaries by market\u003c\/td\u003e\n\u003ctd\u003eConfirmed\u003c\/td\u003e\n\u003ctd\u003ePublic fiche result shows 571091A on Himalayan 410 Euro 4 fuel-injection page.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThunderbird 500 EFI\u003c\/td\u003e\n\u003ctd\u003eUCE 499cc EFI\u003c\/td\u003e\n\u003ctd\u003eEFI\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eUnverified\u003c\/td\u003e\n\u003ctd\u003eNo equally strong direct fiche confirmation found in this pass.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBullet \/ Classic 350 UCE\u003c\/td\u003e\n\u003ctd\u003eUCE 346cc\u003c\/td\u003e\n\u003ctd\u003eMixed\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eNot compatible\u003c\/td\u003e\n\u003ctd\u003eNo strong support found in current research set.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ-Series \/ 650 Twins \/ Meteor \/ Hunter\u003c\/td\u003e\n\u003ctd\u003eMixed\u003c\/td\u003e\n\u003ctd\u003eMixed\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eNot compatible\u003c\/td\u003e\n\u003ctd\u003eNo support found.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eVariants\u003c\/h3\u003e\n\u003cp\u003eNo variants.\u003c\/p\u003e\n\n\u003ch3\u003eBefore You Buy Checklist\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the bike is Bullet 500 EFI, Classic 500 EFI, or Himalayan 410 EFI\u003c\/li\u003e\n\u003cli\u003eMatch the old part shape, bore, and mounting holes\u003c\/li\u003e\n\u003cli\u003eCheck whether the old part is plain flange or PAV adaptor type\u003c\/li\u003e\n\u003cli\u003eDo not order based on generic “EFI adaptor” wording alone\u003c\/li\u003e\n\u003cli\u003eIf unsure, compare with your old part photo before dispatch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1) What is 571091\/A?\u003c\/strong\u003e\u003cbr\u003eIt is the genuine Royal Enfield flange \/ inlet manifold piece used in the EFI intake path.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Is 571091\/A the same as 572304\/A?\u003c\/strong\u003e\u003cbr\u003eNo. 571091\/A is the flange \/ inlet manifold part, while 572304\/A is the adaptor with PAV connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3) Which bikes are safely confirmed?\u003c\/strong\u003e\u003cbr\u003eThe strongest current source support is for Bullet 500 EFI, Classic 500 EFI, and Himalayan 410 EFI.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4) Why is this part hard to identify online?\u003c\/strong\u003e\u003cbr\u003eBecause some sources loosely mix flange, adaptor, and manifold wording. Your pack photo makes the factory identity clear: this one is FLANGE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5) OEM or aftermarket?\u003c\/strong\u003e\u003cbr\u003eThis is a genuine Royal Enfield OEM part.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6) What problem does this solve?\u003c\/strong\u003e\u003cbr\u003eIt replaces a cracked, leaking, or hardened intake flange\/manifold connection in the EFI intake path.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7) What should I check before ordering?\u003c\/strong\u003e\u003cbr\u003eCheck the model, confirm EFI setup, compare shape and mounting pattern, and verify whether your old part is the flange type or the PAV adaptor type.\u003c\/p\u003e\n\n\u003ch3\u003eAlso Searched As\u003c\/h3\u003e\n\u003cp\u003eRoyal Enfield inlet manifold, EFI flange, intake flange, throttle body flange, Bullet 500 EFI manifold, Classic 500 EFI flange, Himalayan 410 intake flange.\u003c\/p\u003e","brand":"Royal Enfield","offers":[{"title":"Default Title","offer_id":51304950235431,"sku":"571091","price":220.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/Royal_Enfield_Flange_Inlet_Manifold_for_Bullet_500_EFI_Classic_500_EFI_Himalayan_410_EFI_571091_A.png?v=1776511387","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-571091-a-flange-inlet-manifold-bullet-classic-500-himalayan","provider":"UNDER THE HOOD","version":"1.0","type":"link"}