{"product_id":"royal-enfield-gearbox-layshaft-bush-111051-11-bullet-350-machismo-a350","title":"Royal Enfield Gearbox Layshaft Case-End Bush | 111051\/11 | Bullet 350 \/ Machismo A350 (4-Speed)","description":"\u003cp data-start=\"251\" data-end=\"734\"\u003eRoyal Enfield \u003cstrong data-start=\"265\" data-end=\"278\"\u003e111051\/11\u003c\/strong\u003e is a genuine OEM \u003cstrong data-start=\"296\" data-end=\"304\"\u003eBUSH\u003c\/strong\u003e used in the \u003cstrong data-start=\"317\" data-end=\"358\"\u003egearbox\/4-speed transmission assembly\u003c\/strong\u003e—commonly referred to by sellers as the \u003cstrong data-start=\"398\" data-end=\"426\"\u003e“layshaft case-end bush”\u003c\/strong\u003e (case end support bush). This small part plays a big role: it supports alignment of internal gearbox components, helps reduce play, and prevents premature wear\/noise that can develop in older 4-speed setups. The official listing identifies it as \u003cstrong data-start=\"673\" data-end=\"693\"\u003eBUSH (111051\/11)\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"736\" data-end=\"1033\"\u003eIf your bike has a classic 4-speed gearbox and you’re rebuilding the transmission, addressing shaft play, or doing a restoration, replacing worn bushes is a smart preventative job. Aftermarket bushes often vary in tolerance and finish; a genuine-spec replacement helps maintain factory-like fit.\u003c\/p\u003e\n\u003cp data-start=\"1035\" data-end=\"1400\"\u003e\u003cstrong data-start=\"1035\" data-end=\"1082\"\u003eConfirmed fitment (public dealer listings):\u003c\/strong\u003e \u003cstrong data-start=\"1083\" data-end=\"1110\"\u003eBullet 350 (legacy\/old)\u003c\/strong\u003e and \u003cstrong data-start=\"1115\" data-end=\"1132\"\u003eMachismo A350\u003c\/strong\u003e. \u003cbr data-start=\"1171\" data-end=\"1174\"\u003e\u003cstrong data-start=\"1174\" data-end=\"1188\"\u003eImportant:\u003c\/strong\u003e This part is frequently grouped under “4-speed models,” but not every Royal Enfield variant shares the same gearbox—please match \u003cstrong data-start=\"1318\" data-end=\"1343\"\u003epart number 111051\/11\u003c\/strong\u003e before ordering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"1402\" data-end=\"1426\"\u003eKey Features \u003c\/h2\u003e\n\u003cul data-start=\"1427\" data-end=\"2246\"\u003e\n\u003cli data-start=\"1427\" data-end=\"1523\"\u003e\n\u003cp data-start=\"1429\" data-end=\"1523\"\u003eGenuine Royal Enfield part number \u003cstrong data-start=\"1463\" data-end=\"1483\"\u003e111051\/11 – BUSH\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1524\" data-end=\"1633\"\u003e\n\u003cp data-start=\"1526\" data-end=\"1633\"\u003eCommon market naming: \u003cstrong data-start=\"1548\" data-end=\"1593\"\u003egearbox end case \/ layshaft case-end bush\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1634\" data-end=\"1737\"\u003e\n\u003cp data-start=\"1636\" data-end=\"1737\"\u003eHelps control internal play and supports gearbox component alignment (critical for smooth shifting)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1738\" data-end=\"1829\"\u003e\n\u003cp data-start=\"1740\" data-end=\"1829\"\u003eIdeal for gearbox rebuilds, restorations, and preventive maintenance on older platforms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1830\" data-end=\"1954\"\u003e\n\u003cp data-start=\"1832\" data-end=\"1954\"\u003eSingle piece replacement (buy quantity as per your mechanic’s rebuild requirement) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1955\" data-end=\"2093\"\u003e\n\u003cp data-start=\"1957\" data-end=\"2093\"\u003e“Fits 4-speed models except Thunderbird” is commonly stated by specialist sellers (verify model) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2094\" data-end=\"2164\"\u003e\n\u003cp data-start=\"2096\" data-end=\"2164\"\u003eOEM-spec fitment reduces return risk vs generic aftermarket bushes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2165\" data-end=\"2246\"\u003e\n\u003cp data-start=\"2167\" data-end=\"2246\"\u003eDurable metal bush construction as per OEM design intent (no cosmetic variants)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"2248\" data-end=\"2311\"\u003eCompatibility Table \u003c\/h2\u003e\n\u003ch3 data-start=\"2313\" data-end=\"2359\"\u003e✅ Confirmed\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2360\" data-end=\"2878\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2360\" data-end=\"2424\"\u003e\n\u003ctr data-start=\"2360\" data-end=\"2424\"\u003e\n\u003cth data-start=\"2360\" data-end=\"2368\" data-col-size=\"md\"\u003eModel\u003c\/th\u003e\n\u003cth data-start=\"2368\" data-end=\"2388\" data-col-size=\"sm\"\u003eEngine \/ Platform\u003c\/th\u003e\n\u003cth data-start=\"2388\" data-end=\"2399\" data-col-size=\"sm\"\u003eBS Stage\u003c\/th\u003e\n\u003cth data-start=\"2399\" data-end=\"2407\" data-col-size=\"sm\"\u003eYears\u003c\/th\u003e\n\u003cth data-start=\"2407\" data-end=\"2424\" data-col-size=\"md\"\u003eFitment Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2447\" data-end=\"2878\"\u003e\n\u003ctr data-start=\"2447\" data-end=\"2674\"\u003e\n\u003ctd data-start=\"2447\" data-end=\"2501\" data-col-size=\"md\"\u003e\u003cstrong data-start=\"2449\" data-end=\"2500\"\u003eRoyal Enfield Bullet 350 (Legacy \/ Old 4-Speed)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2501\" data-end=\"2525\" data-col-size=\"sm\"\u003eOlder Bullet platform\u003c\/td\u003e\n\u003ctd data-start=\"2525\" data-end=\"2540\" data-col-size=\"sm\"\u003ePre-BS \/ N\/A\u003c\/td\u003e\n\u003ctd data-start=\"2540\" data-end=\"2563\" data-col-size=\"sm\"\u003e❓ (varies by market)\u003c\/td\u003e\n\u003ctd data-start=\"2563\" data-end=\"2674\" data-col-size=\"md\"\u003eListed in Bullet 350 spares + “Old year 1980–2009” category reference \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2675\" data-end=\"2878\"\u003e\n\u003ctd data-start=\"2675\" data-end=\"2709\" data-col-size=\"md\"\u003e\u003cstrong data-start=\"2677\" data-end=\"2708\"\u003eRoyal Enfield Machismo A350\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2709\" data-end=\"2734\" data-col-size=\"sm\"\u003eOlder 4-speed platform\u003c\/td\u003e\n\u003ctd data-start=\"2734\" data-end=\"2749\" data-col-size=\"sm\"\u003ePre-BS \/ N\/A\u003c\/td\u003e\n\u003ctd data-start=\"2749\" data-end=\"2753\" data-col-size=\"sm\"\u003e❓\u003c\/td\u003e\n\u003ctd data-start=\"2753\" data-end=\"2878\" data-col-size=\"md\"\u003eExplicitly listed by seller; also grouped under 4-speed gearbox bush product family \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-start=\"2880\" data-end=\"2961\"\u003e❓ Mentioned by one source + “4-speed models” claim (verify before purchase)\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2962\" data-end=\"3620\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2962\" data-end=\"3018\"\u003e\n\u003ctr data-start=\"2962\" data-end=\"3018\"\u003e\n\u003cth data-start=\"2962\" data-end=\"2970\" data-col-size=\"sm\"\u003eModel\u003c\/th\u003e\n\u003cth data-start=\"2970\" data-end=\"2990\" data-col-size=\"sm\"\u003eEngine \/ Platform\u003c\/th\u003e\n\u003cth data-start=\"2990\" data-end=\"3001\" data-col-size=\"sm\"\u003eBS Stage\u003c\/th\u003e\n\u003cth data-start=\"3001\" data-end=\"3009\" data-col-size=\"sm\"\u003eYears\u003c\/th\u003e\n\u003cth data-start=\"3009\" data-end=\"3018\" data-col-size=\"lg\"\u003eWhy ❓\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3041\" data-end=\"3620\"\u003e\n\u003ctr data-start=\"3041\" data-end=\"3211\"\u003e\n\u003ctd data-start=\"3041\" data-end=\"3058\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"3043\" data-end=\"3057\"\u003eElectra 4S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"3058\" data-end=\"3075\" data-col-size=\"sm\"\u003eOlder platform\u003c\/td\u003e\n\u003ctd data-start=\"3075\" data-end=\"3090\" data-col-size=\"sm\"\u003ePre-BS \/ N\/A\u003c\/td\u003e\n\u003ctd data-start=\"3090\" data-end=\"3102\" data-col-size=\"sm\"\u003e2005–2010\u003c\/td\u003e\n\u003ctd data-start=\"3102\" data-end=\"3211\" data-col-size=\"lg\"\u003eListed on one supplier page; confirm part number on your microfiche \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3212\" data-end=\"3430\"\u003e\n\u003ctd data-start=\"3212\" data-end=\"3246\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"3214\" data-end=\"3245\"\u003eStandard 350 \/ Standard 500\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"3246\" data-end=\"3263\" data-col-size=\"sm\"\u003eOlder platform\u003c\/td\u003e\n\u003ctd data-start=\"3263\" data-end=\"3278\" data-col-size=\"sm\"\u003ePre-BS \/ N\/A\u003c\/td\u003e\n\u003ctd data-start=\"3278\" data-end=\"3294\" data-col-size=\"sm\"\u003e1995– \/ 1990–\u003c\/td\u003e\n\u003ctd data-start=\"3294\" data-end=\"3430\" data-col-size=\"lg\"\u003eListed on one supplier page; “4-speed models” statement is generic—confirm exact application \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3431\" data-end=\"3620\"\u003e\n\u003ctd data-start=\"3431\" data-end=\"3467\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"3433\" data-end=\"3466\"\u003eLightning 500 \/ Lightning 535\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"3467\" data-end=\"3484\" data-col-size=\"sm\"\u003eOlder platform\u003c\/td\u003e\n\u003ctd data-start=\"3484\" data-end=\"3499\" data-col-size=\"sm\"\u003ePre-BS \/ N\/A\u003c\/td\u003e\n\u003ctd data-start=\"3499\" data-end=\"3511\" data-col-size=\"sm\"\u003e2001–2002\u003c\/td\u003e\n\u003ctd data-start=\"3511\" data-end=\"3620\" data-col-size=\"lg\"\u003eListed on one supplier page; verify gearbox variant \u0026amp; part number \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-start=\"3622\" data-end=\"3635\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003ePLEASE CHECK PART NUMBER BEFORE PURCHASE \u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2 data-start=\"3622\" data-end=\"3635\"\u003eVariants\u003c\/h2\u003e\n\u003cul data-start=\"3636\" data-end=\"3846\"\u003e\n\u003cli data-start=\"3636\" data-end=\"3688\"\u003e\n\u003cp data-start=\"3638\" data-end=\"3688\"\u003e\u003cstrong data-start=\"3638\" data-end=\"3667\"\u003eNo LH\/RH \/ color variants\u003c\/strong\u003e (functional bush).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3689\" data-end=\"3846\"\u003e\n\u003cp data-start=\"3691\" data-end=\"3846\"\u003eSold as \u003cstrong data-start=\"3699\" data-end=\"3715\"\u003esingle piece\u003c\/strong\u003e; some rebuild kits may bundle it with related bushes (e.g., 111074) depending on seller. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"3848\" data-end=\"3863\"\u003eFAQs \u003c\/h2\u003e\n\u003cp data-start=\"3864\" data-end=\"4064\"\u003e\u003cstrong data-start=\"3864\" data-end=\"3897\"\u003e1) What exactly is 111051\/11?\u003c\/strong\u003e\u003cbr data-start=\"3897\" data-end=\"3900\"\u003eIt is a \u003cstrong data-start=\"3908\" data-end=\"3934\"\u003eRoyal Enfield OEM BUSH\u003c\/strong\u003e used in the gearbox assembly; commonly sold\/understood as a \u003cstrong data-start=\"3995\" data-end=\"4021\"\u003elayshaft case-end bush\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4066\" data-end=\"4302\"\u003e\u003cstrong data-start=\"4066\" data-end=\"4112\"\u003e2) Will this fit all Royal Enfield models?\u003c\/strong\u003e\u003cbr data-start=\"4112\" data-end=\"4115\"\u003eNo. It’s typically associated with \u003cstrong data-start=\"4150\" data-end=\"4177\"\u003eolder 4-speed gearboxes\u003c\/strong\u003e; confirm via \u003cstrong data-start=\"4191\" data-end=\"4206\"\u003epart number\u003c\/strong\u003e on your bike’s microfiche\/parts list before ordering. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4304\" data-end=\"4566\"\u003e\u003cstrong data-start=\"4304\" data-end=\"4381\"\u003e3) My mechanic says “4-speed models except Thunderbird.” Is that correct?\u003c\/strong\u003e\u003cbr data-start=\"4381\" data-end=\"4384\"\u003eThat statement is commonly published by specialist sellers, but it’s still best practice to match \u003cstrong data-start=\"4482\" data-end=\"4495\"\u003e111051\/11\u003c\/strong\u003e on your exact model\/gearbox. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4568\" data-end=\"4729\"\u003e\u003cstrong data-start=\"4568\" data-end=\"4607\"\u003e4) When should I replace this bush?\u003c\/strong\u003e\u003cbr data-start=\"4607\" data-end=\"4610\"\u003eDuring gearbox overhaul, when correcting shaft play, noisy gearbox operation, or inconsistent shifting on older setups.\u003c\/p\u003e\n\u003cp data-start=\"4731\" data-end=\"4840\"\u003e\u003cstrong data-start=\"4731\" data-end=\"4777\"\u003e5) Is this a cosmetic (black\/chrome) part?\u003c\/strong\u003e\u003cbr data-start=\"4777\" data-end=\"4780\"\u003eNo—this is an internal functional bush (no finish variants).\u003c\/p\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50863603384615,"sku":null,"price":76.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/ChatGPTImageDec2_2025_10_22_57PM_a449fa02-96ca-4831-b2b5-a3ad448d7d9d.png?v=1776338959","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-gearbox-layshaft-bush-111051-11-bullet-350-machismo-a350","provider":"UNDER THE HOOD","version":"1.0","type":"link"}