{"product_id":"royal-enfield-uce-valve-guide-570953-b","title":"Royal Enfield UCE Valve Guide – Classic, Bullet, Electra, Thunderbird \u0026 Continental GT 535 – 570953\/B","description":"\u003ch1\u003eRoyal Enfield UCE Valve Guide – Classic, Bullet, Electra, Thunderbird \u0026amp; Continental GT 535 – 570953\/B\u003c\/h1\u003e\n\n\u003cp\u003e\u003cstrong\u003eGenuine Royal Enfield 570953\/B\u003c\/strong\u003e is a factory \u003cstrong\u003eVALVE GUIDE\u003c\/strong\u003e used in Royal Enfield UCE cylinder-head applications within the 570953 \/ earlier 570165 valve-guide family.\u003c\/p\u003e\n\n\u003ch2\u003ePart Identification\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e570953\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBase Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e570953\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOEM Description\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVALVE GUIDE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHistorical Description\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSintered Valve Guide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuyer Search Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylinder Head Valve Guide \/ Inlet \u0026amp; Exhaust Valve Guide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLocation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylinder Head \/ Valvetrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLegacy UCE EPC Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 per engine where common guide 570165\/C was specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch2\u003eShort Hook\u003c\/h2\u003e\n\u003cp\u003eRestore correct valve-stem guidance in a worn UCE cylinder head with genuine Royal Enfield \u003cstrong\u003e570953\/B\u003c\/strong\u003e, the later valve-guide family associated with the earlier UCE guide \u003cstrong\u003e570165\/C\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\n\u003cp\u003eRoyal Enfield \u003cstrong\u003e570953\/B\u003c\/strong\u003e is a genuine cylinder-head valve guide used in the UCE engine family where the 570953 valve-guide revision is specified.\u003c\/p\u003e\n\u003cp\u003eEarlier Royal Enfield UCE parts catalogues list \u003cstrong\u003e570165\/C – VALVE GUIDE\u003c\/strong\u003e as the common valve guide in 350cc and 500cc UCE cylinder heads, with quantity \u003cstrong\u003e2\u003c\/strong\u003e per engine. Current genuine-parts data explicitly shows \u003cstrong\u003e570165\/C replaced by 570953\/A\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eRoyal Enfield's current 2026 parts list now also carries \u003cstrong\u003e570953\/B – VALVE GUIDE\u003c\/strong\u003e. Because the available public data does not explicitly state a blanket 570953\/A → 570953\/B supersession for every VIN, this listing uses the current \/B SKU while retaining a suffix-level verification warning.\u003c\/p\u003e\n\u003cp\u003eThe valve guide supports and accurately locates the valve stem as the inlet and exhaust valves open and close. Excessive guide wear can cause poor valve sealing, oil consumption, smoke and unstable valve movement.\u003c\/p\u003e\n\n\u003ch2\u003eWhat This Product Is\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Royal Enfield OEM valve guide.\u003c\/li\u003e\n\u003cli\u003eCylinder-head internal component.\u003c\/li\u003e\n\u003cli\u003eUsed to guide the valve stem.\u003c\/li\u003e\n\u003cli\u003ePart of the UCE \/ GT 535 valve-guide family.\u003c\/li\u003e\n\u003cli\u003eCurrent exact SKU: 570953\/B.\u003c\/li\u003e\n\u003cli\u003eLegacy UCE cylinder-head catalogues use two common guides per engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat This Product Is Not\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNot an inlet valve.\u003c\/li\u003e\n\u003cli\u003eNot an exhaust valve.\u003c\/li\u003e\n\u003cli\u003eNot a valve stem oil seal.\u003c\/li\u003e\n\u003cli\u003eNot a valve seat insert.\u003c\/li\u003e\n\u003cli\u003eNot a complete cylinder head.\u003c\/li\u003e\n\u003cli\u003eNot for J-Series 350 engines.\u003c\/li\u003e\n\u003cli\u003eNot for Himalayan 411 \/ LS410.\u003c\/li\u003e\n\u003cli\u003eNot for 650 Twin or Sherpa 450 engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Royal Enfield OEM engine component.\u003c\/li\u003e\n\u003cli\u003eCorrect factory valve-stem support where 570953\/B is specified.\u003c\/li\u003e\n\u003cli\u003eAssociated with the earlier UCE 570165\/C guide family.\u003c\/li\u003e\n\u003cli\u003eSuitable for cylinder-head overhaul and worn-guide replacement.\u003c\/li\u003e\n\u003cli\u003eExact part-number targeting reduces confusion with valve seats and valves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuyer Search Names \/ Internal Search Keywords\u003c\/h2\u003e\n\u003cp\u003e570953\/B, 570953B, 570953, 570953\/A, 570165\/C, Royal Enfield valve guide, UCE valve guide, Classic 350 valve guide, Bullet 350 valve guide, Electra 350 valve guide, Thunderbird 350 valve guide, Classic 500 valve guide, Bullet 500 valve guide, Thunderbird 500 valve guide, Continental GT 535 valve guide, cylinder head guide, inlet valve guide, exhaust valve guide.\u003c\/p\u003e\n\n\u003ch2\u003eConfirmed \/ Strongly Supported Compatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMotorcycle \/ Engine\u003c\/th\u003e\n\u003cth\u003eStatus\u003c\/th\u003e\n\u003cth\u003eFitment Basis\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Thunderbird 350 UCE\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed by UCE guide family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFactory Thunderbird 350\/500 catalogue lists 570165\/C Valve Guide UCE, Qty 2; current genuine data replaces 570165\/C with 570953\/A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Thunderbird 500 UCE\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed by UCE guide family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSame factory Thunderbird catalogue uses common 570165\/C guide for the 350\/500 UCE cylinder-head family.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Continental GT 535\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed by official replacement mapping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent genuine-parts assignment lists 570165\/C in the GT 535 cylinder head and explicitly replaces it with 570953\/A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Classic 350 UCE\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStrong current support – verify \/B suffix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent genuine sellers list 570953\/B for Classic 350 UCE; 350 UCE guide family uses earlier 570165\/C.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Bullet \/ Standard 350 UCE\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStrong current support – verify \/B suffix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent genuine sellers list 570953\/B for Standard\/Bullet 350 UCE applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Electra 350 UCE\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStrong current support – verify \/B suffix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent genuine sellers list 570953\/B for Electra 350 UCE.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Classic 500 UCE \/ EFI\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStrong engine-family support – verify \/B suffix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e570953 sits in the UCE 500 cylinder-head part family; current market references also list 570953\/B for Classic 500.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Bullet 500 UCE \/ EFI\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStrong engine-family support – verify \/B suffix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent parts references list 570953\/B for Bullet 500 EFI \/ UCE applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFitment Not Confirmed \/ Check Before Ordering\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel \/ Situation\u003c\/th\u003e\n\u003cth\u003eRequired Check\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBullet Trials 350 \/ 500 UCE\u003c\/td\u003e\n\u003ctd\u003eLikely related UCE architecture, but verify exact cylinder-head EPC and suffix before dispatch.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarket-specific late UCE revisions\u003c\/td\u003e\n\u003ctd\u003eMatch VIN, dealer EPC or the genuine packet.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebuilt \/ swapped cylinder head\u003c\/td\u003e\n\u003ctd\u003eConfirm the installed head and old guide dimensions \/ part family before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNot Compatible \/ Do Not Order For\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel \/ Engine\u003c\/th\u003e\n\u003cth\u003eReason\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eClassic 350 Reborn \/ J-Series\u003c\/td\u003e\n\u003ctd\u003eDifferent modern J-Series cylinder head.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeteor 350 \/ Hunter 350 \/ Bullet 350 J-Series\u003c\/td\u003e\n\u003ctd\u003eDifferent J-Series valvetrain architecture.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHimalayan 411 \/ Scram 411\u003c\/td\u003e\n\u003ctd\u003eDifferent LS410 engine and valve-guide family.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHimalayan 450 \/ Guerrilla 450\u003c\/td\u003e\n\u003ctd\u003eDifferent Sherpa 450 engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterceptor 650 \/ Continental GT 650 \/ other 650 Twins\u003c\/td\u003e\n\u003ctd\u003eDifferent 4-valve parallel-twin cylinder-head architecture.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500304\/B\u003c\/td\u003e\n\u003ctd\u003eDifferent AVL \/ lean-burn valve-guide family.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePart Number \/ Supersession Notes\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eDocumented Status\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e570165\/C\u003c\/td\u003e\n\u003ctd\u003eEarlier UCE Valve Guide; current genuine data explicitly shows replacement by 570953\/A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e570953\/A\u003c\/td\u003e\n\u003ctd\u003eLater genuine Valve Guide; documented replacement for 570165\/C.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e570953\/B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent 2026 Royal Enfield parts-list revision used for this listing.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e public data confirms 570165\/C → 570953\/A, but does not explicitly publish a blanket A → B supersession for every VIN. Use \u003cstrong\u003e570953\/B\u003c\/strong\u003e where your genuine packet, current dealer system or exact parts catalogue confirms the \/B revision.\u003c\/p\u003e\n\n\u003ch2\u003eSimilar Parts Comparison\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eDifference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e570953\/B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eValve Guide\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis product – current 570953 revision\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e570953\/A\u003c\/td\u003e\n\u003ctd\u003eValve Guide\u003c\/td\u003e\n\u003ctd\u003eEarlier 570953 revision; official replacement for 570165\/C.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e570165\/C\u003c\/td\u003e\n\u003ctd\u003eValve Guide\u003c\/td\u003e\n\u003ctd\u003eEarlier UCE guide superseded to 570953\/A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e570163\/F\u003c\/td\u003e\n\u003ctd\u003eValve-Inlet\u003c\/td\u003e\n\u003ctd\u003e350 UCE inlet valve, not guide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e570164\/F\u003c\/td\u003e\n\u003ctd\u003eValve-Exhaust\u003c\/td\u003e\n\u003ctd\u003e350 UCE exhaust valve, not guide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e571034\/D\u003c\/td\u003e\n\u003ctd\u003eValve, Inlet 500cc\u003c\/td\u003e\n\u003ctd\u003e500 UCE inlet valve.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e571035\/D\u003c\/td\u003e\n\u003ctd\u003eValve, Exhaust 500cc\u003c\/td\u003e\n\u003ctd\u003e500 UCE exhaust valve.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e571036\/B\u003c\/td\u003e\n\u003ctd\u003eValve Seat Insert Inlet\u003c\/td\u003e\n\u003ctd\u003e500 UCE inlet valve seat, not guide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e571037\/C\u003c\/td\u003e\n\u003ctd\u003eValve Seat Insert Exhaust\u003c\/td\u003e\n\u003ctd\u003e500 UCE exhaust valve seat, not guide.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500304\/B\u003c\/td\u003e\n\u003ctd\u003eValve Guide\u003c\/td\u003e\n\u003ctd\u003eOlder AVL \/ lean-burn engine family.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFactory Quantity vs Shopify Quantity\u003c\/h2\u003e\n\u003cp\u003eThe Royal Enfield Thunderbird 350\/500 UCE catalogue lists the common earlier valve guide \u003cstrong\u003e570165\/C at quantity 2\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis corresponds to one guide for the inlet valve and one guide for the exhaust valve in the single-cylinder UCE head.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShopify quantity 1 = one individual 570953\/B valve guide.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf both guides are being renewed, the customer may require quantity 2.\u003c\/p\u003e\n\n\u003ch2\u003eWhen Should This Be Replaced?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eValve-stem-to-guide clearance exceeds service limits.\u003c\/li\u003e\n\u003cli\u003eGuide is worn, cracked or damaged.\u003c\/li\u003e\n\u003cli\u003eValve stem has excessive side movement.\u003c\/li\u003e\n\u003cli\u003eCylinder head is being professionally rebuilt.\u003c\/li\u003e\n\u003cli\u003eOil consumption \/ smoke is traced to worn guide clearance after proper diagnosis.\u003c\/li\u003e\n\u003cli\u003eValve has seized or damaged the guide.\u003c\/li\u003e\n\u003cli\u003eNew valves are being installed and the existing guide is outside specification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Related Parts to Check\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApplicable inlet valve.\u003c\/li\u003e\n\u003cli\u003eApplicable exhaust valve.\u003c\/li\u003e\n\u003cli\u003eValve stem oil seals.\u003c\/li\u003e\n\u003cli\u003eInlet valve seat insert.\u003c\/li\u003e\n\u003cli\u003eExhaust valve seat insert.\u003c\/li\u003e\n\u003cli\u003eValve springs, retainers and collets.\u003c\/li\u003e\n\u003cli\u003eCylinder-head gasket.\u003c\/li\u003e\n\u003cli\u003eRocker arms and pushrods during major head overhaul.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1 × Genuine Royal Enfield 570953\/B Valve Guide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eValves, valve-stem seals, valve seats, springs, retainers, collets and cylinder-head gaskets are not included unless explicitly stated.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eConfirm the exact cylinder-head EPC \/ genuine packet specifies the 570953 valve-guide family.\u003c\/li\u003e\n\u003cli\u003eMeasure the old guide and valve stem before removal.\u003c\/li\u003e\n\u003cli\u003eValve guides require proper cylinder-head workshop tools for removal and installation.\u003c\/li\u003e\n\u003cli\u003eHeat \/ cooling procedures, press fit and installed height must follow the Royal Enfield workshop specification.\u003c\/li\u003e\n\u003cli\u003eAfter guide replacement, check \/ ream the guide bore to the specified clearance if required.\u003c\/li\u003e\n\u003cli\u003eValve-seat concentricity must be checked after guide replacement.\u003c\/li\u003e\n\u003cli\u003eProfessional cylinder-head machine-shop installation is strongly recommended.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eReturn-Prevention Note \/ Before You Buy\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eMatch exact SKU \u003cstrong\u003e570953\/B\u003c\/strong\u003e where \/B is specified.\u003c\/li\u003e\n\u003cli\u003eDo not confuse the valve guide with the valve itself.\u003c\/li\u003e\n\u003cli\u003eDo not order for J-Series 350, LS410, Sherpa 450 or 650 Twin engines.\u003c\/li\u003e\n\u003cli\u003eIf replacing older 570165\/C, note that public genuine data explicitly maps it to 570953\/A; confirm whether your current packet \/ VIN now requires 570953\/B.\u003c\/li\u003e\n\u003cli\u003eCheck required quantity; legacy UCE heads use two common guides.\u003c\/li\u003e\n\u003cli\u003eDo not install without measuring the valve stem and cylinder-head guide fit.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCorrectly supplied internal engine parts are not returnable or exchangeable because of incorrect selection, engine-generation mismatch, suffix mismatch, incorrect diagnosis, machining \/ installation attempt, opened\/installed part or change of mind. Orders cannot be cancelled once placed. Eligible wrong-item or damaged-item claims require applicable proof and a complete unboxing video under store policy.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Royal Enfield 570953\/B?\u003c\/strong\u003e\u003cbr\u003eIt is a genuine cylinder-head valve guide used in the later 570953 UCE valve-guide family.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat did 570953 replace?\u003c\/strong\u003e\u003cbr\u003eCurrent genuine-parts data explicitly shows older 570165\/C replaced by 570953\/A. The current 2026 Royal Enfield list also carries 570953\/B.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes it fit Classic 350 UCE?\u003c\/strong\u003e\u003cbr\u003eCurrent genuine sellers list 570953\/B for Classic 350 UCE. Because the published official replacement mapping is specifically to 570953\/A, verify \/B against the current packet or VIN before dispatch.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes it fit Bullet 350 \/ Standard 350 UCE?\u003c\/strong\u003e\u003cbr\u003eCurrent genuine sellers support 570953\/B for those UCE applications; suffix verification is recommended.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes it fit Electra 350 UCE?\u003c\/strong\u003e\u003cbr\u003eCurrent genuine seller references support the application.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes it fit Thunderbird 350 and 500?\u003c\/strong\u003e\u003cbr\u003eThe factory Thunderbird 350\/500 catalogue lists the earlier common guide 570165\/C, quantity 2; that guide is officially replaced by 570953\/A. Verify \/B revision at dispatch.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes it fit Continental GT 535?\u003c\/strong\u003e\u003cbr\u003eYes within the valve-guide family: current official-style assignment shows GT 535 using 570165\/C and explicitly maps that older guide to 570953\/A. Match \/B revision to the current packet\/EPC.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes it fit Classic 500 \/ Bullet 500?\u003c\/strong\u003e\u003cbr\u003eThe part sits within the 500 UCE cylinder-head family and current seller references support these applications. Verify \/B against VIN or packet before installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow many valve guides are used?\u003c\/strong\u003e\u003cbr\u003eLegacy UCE parts books show quantity 2 for the common guide—one for the inlet valve and one for the exhaust valve.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes quantity 1 mean a pair?\u003c\/strong\u003e\u003cbr\u003eNo. Quantity 1 means one individual valve guide.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this suitable for Classic 350 Reborn?\u003c\/strong\u003e\u003cbr\u003eNo. Classic 350 Reborn uses the modern J-Series engine.\u003c\/p\u003e\n\n\u003ch2\u003eSEO Tags\u003c\/h2\u003e\n\u003cp\u003eRoyal Enfield, Genuine Royal Enfield Parts, 570953\/B, 570953B, 570953, 570953\/A, 570165\/C, VALVE GUIDE, Sintered Valve Guide, Cylinder Head Valve Guide, Inlet Valve Guide, Exhaust Valve Guide, Classic 350 UCE, Bullet 350 UCE, Standard 350 UCE, Electra 350 UCE, Thunderbird 350 UCE, Classic 500 UCE, Bullet 500 EFI, Thunderbird 500 UCE, Continental GT 535, UCE 350, UCE 500, Royal Enfield Cylinder Head Parts, Royal Enfield Engine Parts, OEM Spares\u003c\/p\u003e\n\n\u003ch2\u003eImage Filename Suggestions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eroyal-enfield-570953-b-uce-valve-guide.jpg\u003c\/li\u003e\n\u003cli\u003eclassic-bullet-electra-thunderbird-uce-valve-guide-570953-b.jpg\u003c\/li\u003e\n\u003cli\u003eroyal-enfield-gt535-cylinder-head-valve-guide-570953-b.jpg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImage Alt Text\u003c\/h2\u003e\n\u003cp\u003eGenuine Royal Enfield 570953\/B cylinder head valve guide for UCE 350\/500 and Continental GT 535 applications\u003c\/p\u003e\n\n\u003ch2\u003eGoogle Shopping Notes\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e570953\/B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCustom Product\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFalse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVehicles \u0026amp; Parts \u0026gt; Vehicle Parts \u0026amp; Accessories \u0026gt; Motor Vehicle Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlank until current Under The Hood selling price is verified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlank until a valid direct HTTPS image is supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch2\u003eCompetitor Gap Analysis\u003c\/h2\u003e\n\u003cp\u003eSeveral sellers simply state that 570953\/B fits “all UCE models.” That is useful supporting evidence but too broad on its own. This listing is stronger because it documents the older 570165\/C UCE guide, the official 570165\/C → 570953\/A replacement mapping, the current 570953\/B revision, the legacy quantity of two guides per UCE cylinder head, and the need for suffix verification before dispatch.\u003c\/p\u003e","brand":"Royal Enfield","offers":[{"title":"Default Title","offer_id":52054289482023,"sku":"570953\/B","price":0.0,"currency_code":"INR","in_stock":false}],"url":"https:\/\/underthehood.co.in\/products\/royal-enfield-uce-valve-guide-570953-b","provider":"UNDER THE HOOD","version":"1.0","type":"link"}