{"product_id":"royal-enfield-570012-c-retainer-plate-mainshaft-bearing","title":"Royal Enfield 570012\/C – OEM Retainer Plate for Mainshaft Bearing (Crankcase LH) — Sold Individually","description":"\u003cp data-end=\"871\" data-start=\"537\"\u003eMaintain engine precision and prevent unwanted shaft play with the genuine \u003cstrong data-end=\"675\" data-start=\"612\"\u003eRoyal Enfield 570012\/C Retainer Plate for Mainshaft Bearing\u003c\/strong\u003e. This factory-engineered component situates the mainshaft bearing flush inside the left crankcase housing, securing the bearing’s axial position and protecting the crankcase from thrust damage.\u003c\/p\u003e\n\u003cp data-end=\"1220\" data-start=\"873\"\u003eOver time, retainer plates may warp, crack, or lose tolerance due to bearing heat, vibration, or improper assembly. Replacing this critical part ensures smooth operation, correct bearing preload, and long-term engine reliability. It’s a standard component in RE’s crankcase assemblies and is required during engine rebuilds or crankcase repairs.\u003c\/p\u003e\n\u003cp data-end=\"1408\" data-start=\"1222\"\u003e🔧 This listing offers either \u003cstrong data-end=\"1277\" data-start=\"1252\"\u003ea single piece (1 pc)\u003c\/strong\u003e or a \u003cstrong data-end=\"1348\" data-start=\"1283\"\u003esealed 30-piece pack (ideal for workshops or batch servicing)\u003c\/strong\u003e. Use the quantity selector to choose single or full-pack.\u003c\/p\u003e\n\u003cp data-end=\"1546\" data-start=\"1410\"\u003e⚠️ Always match your existing retainer’s part code before purchasing — minor variants in thickness or flange fit can cause misalignment.\u003c\/p\u003e\n\u003chr data-end=\"1551\" data-start=\"1548\"\u003e\n\u003ch2 data-end=\"1570\" data-start=\"1553\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"2079\" data-start=\"1571\"\u003e\n\u003cli data-end=\"1635\" data-start=\"1571\"\u003e\n\u003cp data-end=\"1635\" data-start=\"1573\"\u003eGenuine \u003cstrong data-end=\"1607\" data-start=\"1581\"\u003eRoyal Enfield OEM Part\u003c\/strong\u003e — 570012\/C Retainer Plate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1704\" data-start=\"1636\"\u003e\n\u003cp data-end=\"1704\" data-start=\"1638\"\u003ePrecisely machined to OEM tolerances for bearing axial alignment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1771\" data-start=\"1705\"\u003e\n\u003cp data-end=\"1771\" data-start=\"1707\"\u003eHelps prevent bearing movement and protects crankcase surfaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1819\" data-start=\"1772\"\u003e\n\u003cp data-end=\"1819\" data-start=\"1774\"\u003eDrop-in replacement — no machining required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1880\" data-start=\"1820\"\u003e\n\u003cp data-end=\"1880\" data-start=\"1822\"\u003eSupplied \u003cstrong data-end=\"1848\" data-start=\"1831\"\u003esingle (1 pc)\u003c\/strong\u003e or in \u003cstrong data-end=\"1878\" data-start=\"1855\"\u003efull pack of 30 pcs\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1944\" data-start=\"1881\"\u003e\n\u003cp data-end=\"1944\" data-start=\"1883\"\u003eDurable RE-grade steel construction with OEM surface finish\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2025\" data-start=\"1945\"\u003e\n\u003cp data-end=\"2025\" data-start=\"1947\"\u003eCritical for crankcase rebuilds, bearing replacement, and high-RPM stability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2079\" data-start=\"2026\"\u003e\n\u003cp data-end=\"2079\" data-start=\"2028\"\u003eIdeal for both repair shops and individual owners\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2084\" data-start=\"2081\"\u003e\n\u003ch2 data-end=\"2110\" data-start=\"2086\"\u003eCompatibility Table\u003c\/h2\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 class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2335\" data-start=\"2112\"\u003e\n\u003cthead data-end=\"2154\" data-start=\"2112\"\u003e\n\u003ctr data-end=\"2154\" data-start=\"2112\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2124\" data-start=\"2112\"\u003eComponent\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2138\" data-start=\"2124\"\u003eApplication\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2145\" data-start=\"2138\"\u003eSide\u003c\/th\u003e\n\u003cth data-col-size=\"md\" data-end=\"2154\" data-start=\"2145\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2335\" data-start=\"2218\"\u003e\n\u003ctr data-end=\"2335\" data-start=\"2218\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2230\" data-start=\"2218\"\u003eCrankcase\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2247\" data-start=\"2230\"\u003eLH (Left) side\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2258\" data-start=\"2247\"\u003e570012\/C\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2335\" data-start=\"2258\"\u003eRetains the mainshaft bearing in left crankcase of UCE \/ older RE engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-end=\"2340\" data-start=\"2337\"\u003e\n\u003ch2 data-end=\"2364\" data-start=\"2342\"\u003eVariants \/ Supply\u003c\/h2\u003e\n\u003cul data-end=\"2528\" data-start=\"2365\"\u003e\n\u003cli data-end=\"2394\" data-start=\"2365\"\u003e\n\u003cp data-end=\"2394\" data-start=\"2367\"\u003ePart Number: \u003cstrong data-end=\"2392\" data-start=\"2380\"\u003e570012\/C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2439\" data-start=\"2395\"\u003e\n\u003cp data-end=\"2439\" data-start=\"2397\"\u003eType: Retainer Plate (Mainshaft Bearing)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2474\" data-start=\"2440\"\u003e\n\u003cp data-end=\"2474\" data-start=\"2442\"\u003eSide: LH (Crankcase Left side)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2528\" data-start=\"2475\"\u003e\n\u003cp data-end=\"2528\" data-start=\"2477\"\u003eSupplied: Single piece or sealed pack of 30 Pcs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2533\" data-start=\"2530\"\u003e\n\u003ch2 data-end=\"2558\" data-start=\"2535\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul data-end=\"2839\" data-start=\"2559\"\u003e\n\u003cli data-end=\"2604\" data-start=\"2559\"\u003e\n\u003cp data-end=\"2604\" data-start=\"2561\"\u003eClean mating surfaces before installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2684\" data-start=\"2605\"\u003e\n\u003cp data-end=\"2684\" data-start=\"2607\"\u003eUse correct torque specification for retainer bolts (as per service manual)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2763\" data-start=\"2685\"\u003e\n\u003cp data-end=\"2763\" data-start=\"2687\"\u003eApply a thin coat of engine oil on the mating surface for friction control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2839\" data-start=\"2764\"\u003e\n\u003cp data-end=\"2839\" data-start=\"2766\"\u003eEnsure correct spacing if a shim or variant plate is used in your model\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2844\" data-start=\"2841\"\u003e\n\u003cp data-end=\"3031\" data-start=\"2969\"\u003e \u003c\/p\u003e\n\u003chr data-end=\"3036\" data-start=\"3033\"\u003e\n\u003ch2 data-end=\"3075\" data-start=\"3038\"\u003eFAQs \u003c\/h2\u003e\n\u003col data-end=\"4666\" data-start=\"3077\"\u003e\n\u003cli data-end=\"3246\" data-start=\"3077\"\u003e\n\u003cp data-end=\"3246\" data-start=\"3080\"\u003e\u003cstrong data-end=\"3135\" data-start=\"3080\"\u003eWhat is the purpose of the 570012\/C retainer plate?\u003c\/strong\u003e\u003cbr data-end=\"3138\" data-start=\"3135\"\u003e→ It locks the mainshaft bearing in place axially, preventing thrust motion and protecting the crankcase.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3401\" data-start=\"3248\"\u003e\n\u003cp data-end=\"3401\" data-start=\"3251\"\u003e\u003cstrong data-end=\"3297\" data-start=\"3251\"\u003eIs this part sold as a pack or individual?\u003c\/strong\u003e\u003cbr data-end=\"3300\" data-start=\"3297\"\u003e→ You can purchase \u003cstrong data-end=\"3342\" data-start=\"3322\"\u003eone piece (1 pc)\u003c\/strong\u003e or a \u003cstrong data-end=\"3378\" data-start=\"3348\"\u003efull sealed pack of 30 pcs\u003c\/strong\u003e (ideal for workshops).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3562\" data-start=\"3403\"\u003e\n\u003cp data-end=\"3562\" data-start=\"3406\"\u003e\u003cstrong data-end=\"3435\" data-start=\"3406\"\u003eWill it fit my RE engine?\u003c\/strong\u003e\u003cbr data-end=\"3438\" data-start=\"3435\"\u003e→ Fits most UCE \/ older RE crankcases using 570012-series retainers. Confirm part number and case design before ordering.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3687\" data-start=\"3564\"\u003e\n\u003cp data-end=\"3687\" data-start=\"3567\"\u003e\u003cstrong data-end=\"3597\" data-start=\"3567\"\u003eCan I reuse the old plate?\u003c\/strong\u003e\u003cbr data-end=\"3600\" data-start=\"3597\"\u003e→ Only if it is perfectly flat and undamaged. Otherwise use new 570012\/C for safety.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3818\" data-start=\"3689\"\u003e\n\u003cp data-end=\"3818\" data-start=\"3692\"\u003e\u003cstrong data-end=\"3721\" data-start=\"3692\"\u003eIs this secured by bolts?\u003c\/strong\u003e\u003cbr data-end=\"3724\" data-start=\"3721\"\u003e→ Yes — use correct flange bolts to torque as per RE specification (avoid over-tightening).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3951\" data-start=\"3820\"\u003e\n\u003cp data-end=\"3951\" data-start=\"3823\"\u003e\u003cstrong data-end=\"3860\" data-start=\"3823\"\u003eDo I need new gaskets or O-rings?\u003c\/strong\u003e\u003cbr data-end=\"3863\" data-start=\"3860\"\u003e→ N. Just ensure mating surfaces are clean. Use thread locker if specified.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4121\" data-start=\"3953\"\u003e\n\u003cp data-end=\"4121\" data-start=\"3956\"\u003e\u003cstrong data-end=\"4007\" data-start=\"3956\"\u003eWill the wrong retainer plate damage my engine?\u003c\/strong\u003e\u003cbr data-end=\"4010\" data-start=\"4007\"\u003e→ Yes. Even small misalignment or the wrong variant can lead to bearing wear, crankcase scoring, or failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4328\" data-start=\"4123\"\u003e\n\u003cp data-end=\"4328\" data-start=\"4126\"\u003e\u003cstrong data-end=\"4170\" data-start=\"4126\"\u003eCan I use 570012\/C for J-Series engines?\u003c\/strong\u003e\u003cbr data-end=\"4173\" data-start=\"4170\"\u003e→ This part is documented in UCE \/ pre-EFI crankcase lists; J-Series engines often use different designs. Verify your model’s crankcase before assuming.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4499\" data-start=\"4330\"\u003e\n\u003cp data-end=\"4499\" data-start=\"4333\"\u003e\u003cstrong data-end=\"4377\" data-start=\"4333\"\u003eHow to confirm I have the right variant?\u003c\/strong\u003e\u003cbr data-end=\"4380\" data-start=\"4377\"\u003e→ Check your current retainer’s marking (e.g. C suffix) and dimensions (thickness, flange diameter) before ordering.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4666\" data-start=\"4501\"\u003e\n\u003cp data-end=\"4666\" data-start=\"4505\"\u003e\u003cstrong data-end=\"4550\" data-start=\"4505\"\u003eWhat torque should I use when installing?\u003c\/strong\u003e\u003cbr data-end=\"4553\" data-start=\"4550\"\u003e→ Use the official RE service manual specs for retainer plate bolt torque — overtorque can distort the plate.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50492079341863,"sku":null,"price":16.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/Retainer_plate_570012C_OEM_RE_crankcase_LH_side.png?v=1759642679","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-570012-c-retainer-plate-mainshaft-bearing","provider":"UNDER THE HOOD","version":"1.0","type":"link"}