{"product_id":"sprag-clutch-147787c-royal-enfield-uce-classic-bullet-electra-thunderbird","title":"Royal Enfield Sprag Clutch \/ One-Way Starter Clutch – UCE Singles (Electric Start) — 147787\/C (replaces 147787\/B) | Genuine OE","description":"\u003cp data-start=\"264\" data-end=\"988\"\u003eSolve starter kick-back, grinding or free-spinning starts the \u003cstrong data-start=\"326\" data-end=\"333\"\u003eOEM\u003c\/strong\u003e way with the genuine \u003cstrong data-start=\"355\" data-end=\"415\"\u003eRoyal Enfield Sprag (one-way) Clutch — Part No. 147787\/C\u003c\/strong\u003e. The official RE parts assignment lists \u003cstrong data-start=\"456\" data-end=\"468\"\u003e147787\/C\u003c\/strong\u003e as \u003cstrong data-start=\"472\" data-end=\"488\"\u003eSPRAG CLUTCH\u003c\/strong\u003e, with \u003cstrong data-start=\"495\" data-end=\"507\"\u003e147787\/B\u003c\/strong\u003e shown as the prior code now superseded. This unit is the factory one-way clutch that engages the starter gear to the crank on \u003cstrong data-start=\"634\" data-end=\"673\"\u003eUCE single-cylinder, electric-start\u003c\/strong\u003e models. Being \u003cstrong data-start=\"688\" data-end=\"695\"\u003eOEM\u003c\/strong\u003e, the cage, ramps and rollers are hardened to the correct spec and sized for the UCE flywheel bore—no tolerance stack-ups that can shred hubs or backfire under load. Installation is bolt-on with the OE drive cover stack; use fresh rotor\/flywheel and cover gaskets where your fiche specifies.\u003c\/p\u003e\n\u003cp data-start=\"990\" data-end=\"1433\"\u003e\u003cstrong data-start=\"990\" data-end=\"1013\"\u003eFitment is verified\u003c\/strong\u003e across UCE ES platforms by trusted dealer catalogs (Classic\/Bullet\/Electra\/Thunderbird 350–500 UCE, plus Continental GT 535 EFI). Hitchcocks also note the \u003cstrong data-start=\"1169\" data-end=\"1187\"\u003eimproved sprag\u003c\/strong\u003e fitted from \u003cstrong data-start=\"1200\" data-end=\"1219\"\u003eAug-2010 onward\u003c\/strong\u003e and backwards-compatible as a complete assembly for early UCE\/EFI bikes—exactly the use-case this part serves. We list \u003cstrong data-start=\"1339\" data-end=\"1364\"\u003eonly confirmed models\u003c\/strong\u003e below to keep returns at zero. \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\u003ch1 data-start=\"1435\" data-end=\"1449\"\u003eKey Features\u003c\/h1\u003e\n\u003cul data-start=\"1450\" data-end=\"2094\"\u003e\n\u003cli data-start=\"1450\" data-end=\"1565\"\u003e\n\u003cp data-start=\"1452\" data-end=\"1565\"\u003e\u003cstrong data-start=\"1452\" data-end=\"1468\"\u003eOE identity:\u003c\/strong\u003e \u003cstrong data-start=\"1469\" data-end=\"1498\"\u003e147787\/C – “SPRAG CLUTCH”\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=\"1566\" data-end=\"1663\"\u003e\n\u003cp data-start=\"1568\" data-end=\"1663\"\u003eBuilt to RE spec for \u003cstrong data-start=\"1589\" data-end=\"1599\"\u003eUCE ES\u003c\/strong\u003e engines → correct ramp angles \u0026amp; hardness for reliable starts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1664\" data-end=\"1787\"\u003e\n\u003cp data-start=\"1666\" data-end=\"1787\"\u003eBackward-compatible \u003cstrong data-start=\"1686\" data-end=\"1705\"\u003eimproved design\u003c\/strong\u003e (Aug-2010 on) when replacing early units. \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=\"1788\" data-end=\"1872\"\u003e\n\u003cp data-start=\"1790\" data-end=\"1872\"\u003eDirect bolt-in with OE drive cover\/flywheel stack; no machining or shims needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1873\" data-end=\"1951\"\u003e\n\u003cp data-start=\"1875\" data-end=\"1951\"\u003eReduces backfire-induced sprag failures common on worn aftermarket copies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1952\" data-end=\"2094\"\u003e\n\u003cp data-start=\"1954\" data-end=\"2094\"\u003eUse on \u003cstrong data-start=\"1985\" data-end=\"2035\"\u003eClassic\/Bullet\/Electra\/Thunderbird 350–500 UCE\u003c\/strong\u003e and \u003cstrong data-start=\"2040\" data-end=\"2055\"\u003eCGT 535 EFI\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\u003c\/ul\u003e\n\u003ch1 data-start=\"2096\" data-end=\"2134\"\u003eCompatibility Table (confirmed only)\u003c\/h1\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2136\" data-end=\"3278\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2136\" data-end=\"2193\"\u003e\n\u003ctr data-start=\"2136\" data-end=\"2193\"\u003e\n\u003cth data-start=\"2136\" data-end=\"2144\" data-col-size=\"sm\"\u003eModel\u003c\/th\u003e\n\u003cth data-start=\"2144\" data-end=\"2164\" data-col-size=\"sm\"\u003eEngine \/ Platform\u003c\/th\u003e\n\u003cth data-start=\"2164\" data-end=\"2175\" data-col-size=\"sm\"\u003eBS Stage\u003c\/th\u003e\n\u003cth data-start=\"2175\" data-end=\"2183\" data-col-size=\"sm\"\u003eYears\u003c\/th\u003e\n\u003cth data-start=\"2183\" data-end=\"2193\" data-col-size=\"md\"\u003eStatus\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2217\" data-end=\"3278\"\u003e\n\u003ctr data-start=\"2217\" data-end=\"2366\"\u003e\n\u003ctd data-start=\"2217\" data-end=\"2244\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2219\" data-end=\"2243\"\u003eClassic 350 UCE (ES)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2244\" data-end=\"2264\" data-col-size=\"sm\"\u003e346 cc UCE single\u003c\/td\u003e\n\u003ctd data-start=\"2264\" data-end=\"2274\" data-col-size=\"sm\"\u003eBS3\/BS4\u003c\/td\u003e\n\u003ctd data-start=\"2274\" data-end=\"2287\" data-col-size=\"sm\"\u003e~2010–2020\u003c\/td\u003e\n\u003ctd data-start=\"2287\" data-end=\"2366\" data-col-size=\"md\"\u003e✔ Dealer-listed for 147787\/C; UCE \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2367\" data-end=\"2513\"\u003e\n\u003ctd data-start=\"2367\" data-end=\"2389\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2369\" data-end=\"2388\"\u003eClassic 500 EFI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2389\" data-end=\"2406\" data-col-size=\"sm\"\u003e499 cc UCE EFI\u003c\/td\u003e\n\u003ctd data-start=\"2406\" data-end=\"2416\" data-col-size=\"sm\"\u003eBS3\/BS4\u003c\/td\u003e\n\u003ctd data-start=\"2416\" data-end=\"2429\" data-col-size=\"sm\"\u003e~2010–2020\u003c\/td\u003e\n\u003ctd data-start=\"2429\" data-end=\"2513\" data-col-size=\"md\"\u003e✔ Dealer-listed \u0026amp; UCE EFI sprag use noted. \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=\"2514\" data-end=\"2634\"\u003e\n\u003ctd data-start=\"2514\" data-end=\"2540\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2516\" data-end=\"2539\"\u003eBullet 350 UCE (ES)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2540\" data-end=\"2553\" data-col-size=\"sm\"\u003e346 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"2553\" data-end=\"2563\" data-col-size=\"sm\"\u003eBS3\/BS4\u003c\/td\u003e\n\u003ctd data-start=\"2563\" data-end=\"2576\" data-col-size=\"sm\"\u003e~2010–2019\u003c\/td\u003e\n\u003ctd data-start=\"2576\" data-end=\"2634\" data-col-size=\"md\"\u003e✔ Dealer-listed. \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=\"2635\" data-end=\"2755\"\u003e\n\u003ctd data-start=\"2635\" data-end=\"2661\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2637\" data-end=\"2660\"\u003eBullet 500 UCE (ES)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2661\" data-end=\"2674\" data-col-size=\"sm\"\u003e499 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"2674\" data-end=\"2684\" data-col-size=\"sm\"\u003eBS3\/BS4\u003c\/td\u003e\n\u003ctd data-start=\"2684\" data-end=\"2697\" data-col-size=\"sm\"\u003e~2010–2019\u003c\/td\u003e\n\u003ctd data-start=\"2697\" data-end=\"2755\" data-col-size=\"md\"\u003e✔ Dealer-listed. \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=\"2756\" data-end=\"2877\"\u003e\n\u003ctd data-start=\"2756\" data-end=\"2783\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2758\" data-end=\"2782\"\u003eElectra 350 UCE (ES)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2783\" data-end=\"2796\" data-col-size=\"sm\"\u003e346 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"2796\" data-end=\"2806\" data-col-size=\"sm\"\u003eBS3\/BS4\u003c\/td\u003e\n\u003ctd data-start=\"2806\" data-end=\"2819\" data-col-size=\"sm\"\u003e~2010–2017\u003c\/td\u003e\n\u003ctd data-start=\"2819\" data-end=\"2877\" data-col-size=\"md\"\u003e✔ Dealer-listed.\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=\"2878\" data-end=\"3003\"\u003e\n\u003ctd data-start=\"2878\" data-end=\"2909\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2880\" data-end=\"2908\"\u003eThunderbird 350 UCE (ES)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2909\" data-end=\"2922\" data-col-size=\"sm\"\u003e346 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"2922\" data-end=\"2932\" data-col-size=\"sm\"\u003eBS3\/BS4\u003c\/td\u003e\n\u003ctd data-start=\"2932\" data-end=\"2945\" data-col-size=\"sm\"\u003e~2012–2020\u003c\/td\u003e\n\u003ctd data-start=\"2945\" data-end=\"3003\" data-col-size=\"md\"\u003e✔ Dealer-listed.\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=\"3004\" data-end=\"3131\"\u003e\n\u003ctd data-start=\"3004\" data-end=\"3035\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"3006\" data-end=\"3034\"\u003eThunderbird 500 UCE (ES)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"3035\" data-end=\"3048\" data-col-size=\"sm\"\u003e499 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"3048\" data-end=\"3058\" data-col-size=\"sm\"\u003eBS3\/BS4\u003c\/td\u003e\n\u003ctd data-start=\"3058\" data-end=\"3071\" data-col-size=\"sm\"\u003e~2012–2020\u003c\/td\u003e\n\u003ctd data-start=\"3071\" data-end=\"3131\" data-col-size=\"md\"\u003e✔ Dealer-listed. \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=\"3132\" data-end=\"3278\"\u003e\n\u003ctd data-start=\"3132\" data-end=\"3161\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"3134\" data-end=\"3160\"\u003eContinental GT 535 EFI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"3161\" data-end=\"3178\" data-col-size=\"sm\"\u003e535 cc UCE EFI\u003c\/td\u003e\n\u003ctd data-start=\"3178\" data-end=\"3186\" data-col-size=\"sm\"\u003eE3\/E4\u003c\/td\u003e\n\u003ctd data-start=\"3186\" data-end=\"3199\" data-col-size=\"sm\"\u003e~2013–2018\u003c\/td\u003e\n\u003ctd data-start=\"3199\" data-end=\"3278\" data-col-size=\"md\"\u003e✔ Dealer-listed \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\u003cblockquote data-start=\"3280\" data-end=\"3493\"\u003e\n\u003cp data-start=\"3282\" data-end=\"3493\"\u003eNotes: \u003cstrong\u003eIm\u003c\/strong\u003e\u003cstrong data-start=\"3313\" data-end=\"3331\"\u003eproved sprag\u003c\/strong\u003e from \u003cstrong data-start=\"3337\" data-end=\"3349\"\u003eAug-2010\u003c\/strong\u003e; for earlier UCE\/EFI bikes, fit the complete later assembly. Always confirm on your VIN-specific fiche. \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\/blockquote\u003e\n\u003ch1 data-start=\"3495\" data-end=\"3505\"\u003eVariants\u003c\/h1\u003e\n\u003cul data-start=\"3506\" data-end=\"3676\"\u003e\n\u003cli data-start=\"3506\" data-end=\"3571\"\u003e\n\u003cp data-start=\"3508\" data-end=\"3571\"\u003e\u003cstrong data-start=\"3508\" data-end=\"3552\"\u003e147787\/C — Sprag Clutch (current supply)\u003c\/strong\u003e \u003cem data-start=\"3553\" data-end=\"3569\"\u003e(this listing)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3572\" data-end=\"3676\"\u003e\n\u003cp data-start=\"3574\" data-end=\"3676\"\u003e\u003cstrong data-start=\"3574\" data-end=\"3601\"\u003e147787\/B — Sprag Clutch\u003c\/strong\u003e \u003cem data-start=\"3602\" data-end=\"3635\"\u003e(superseded → use \u003cstrong data-start=\"3621\" data-end=\"3633\"\u003e147787\/C\u003c\/strong\u003e)\u003c\/em\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\u003c\/ul\u003e\n\u003ch1 data-start=\"3678\" data-end=\"3684\"\u003eFAQs\u003c\/h1\u003e\n\u003cp data-start=\"3685\" data-end=\"3909\"\u003e\u003cstrong data-start=\"3685\" data-end=\"3754\"\u003eQ1. Will 147787\/C fit my UCE Classic 350 BS4 with electric start?\u003c\/strong\u003e\u003cbr data-start=\"3754\" data-end=\"3757\"\u003eYes—this sprag is listed for \u003cstrong data-start=\"3786\" data-end=\"3810\"\u003eClassic 350 UCE (ES)\u003c\/strong\u003e and other UCE ES models. Always match to your VIN fiche. \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=\"3911\" data-end=\"4112\"\u003e\u003cstrong data-start=\"3911\" data-end=\"3947\"\u003eQ2. What changed after Aug-2010?\u003c\/strong\u003e\u003cbr data-start=\"3947\" data-end=\"3950\"\u003eRE adopted an \u003cstrong data-start=\"3964\" data-end=\"3991\"\u003eimproved sprag assembly\u003c\/strong\u003e that can be fitted to earlier UCE\/EFI bikes to curb backfire-related failures. \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=\"4114\" data-end=\"4255\"\u003e\u003cstrong data-start=\"4114\" data-end=\"4150\"\u003eQ3. Symptoms of a failing sprag?\u003c\/strong\u003e\u003cbr data-start=\"4150\" data-end=\"4153\"\u003eStarter spins without cranking, harsh back-kick, grinding on start, metal shards in the drive cover.\u003c\/p\u003e\n\u003cp data-start=\"4257\" data-end=\"4408\"\u003e\u003cstrong data-start=\"4257\" data-end=\"4287\"\u003eQ4. Do I need other parts?\u003c\/strong\u003e\u003cbr data-start=\"4287\" data-end=\"4290\"\u003eInspect starter idler gears, hub, flywheel bore and \u003cstrong data-start=\"4342\" data-end=\"4368\"\u003ecover\/flywheel gaskets\u003c\/strong\u003e; replace any damaged items per fiche.\u003c\/p\u003e\n\u003cp data-start=\"4410\" data-end=\"4584\"\u003e\u003cstrong data-start=\"4410\" data-end=\"4472\"\u003eQ5. Does this fit J-Series (new Classic 350\/J1A) or Twins?\u003c\/strong\u003e\u003cbr data-start=\"4472\" data-end=\"4475\"\u003eNo—this PN is for \u003cstrong data-start=\"4493\" data-end=\"4508\"\u003eUCE singles\u003c\/strong\u003e. J-Series and 650 Twins use different designs; order by their specific PNs.\u003c\/p\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50544134258983,"sku":null,"price":2100.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/OE_one-way_starter_clutch_147787C_for_Classic_350_500_UCE.jpg?v=1760371835","url":"https:\/\/underthehood.co.in\/products\/sprag-clutch-147787c-royal-enfield-uce-classic-bullet-electra-thunderbird","provider":"UNDER THE HOOD","version":"1.0","type":"link"}