{"product_id":"royal-enfield-tappets-guide-kit-144297-bullet-350-500","title":"Royal Enfield Tappets \u0026 Guide Kit – Bullet 350 \/ Bullet 500 Cast Iron – Genuine OEM Part 144297","description":"\u003cp data-end=\"706\" data-start=\"401\"\u003eKeep your old-school Bullet’s heart running smooth with this \u003cstrong data-end=\"525\" data-start=\"462\"\u003egenuine Royal Enfield Tappets \u0026amp; Guide Kit (Part No. 144297)\u003c\/strong\u003e. This kit is designed for \u003cstrong data-end=\"607\" data-start=\"552\"\u003eclassic cast-iron Bullet 350 and Bullet 500 engines\u003c\/strong\u003e, restoring correct valve timing, reducing tappet noise, and improving reliability on long rides.\u003c\/p\u003e\n\u003cp data-end=\"1173\" data-start=\"708\"\u003eOver time, tappets and their guides wear out, leading to \u003cstrong data-end=\"842\" data-start=\"765\"\u003eexcessive valve noise, loss of compression, hard starting, and power drop\u003c\/strong\u003e. Replacing them with the \u003cstrong data-end=\"891\" data-start=\"868\"\u003eOEM-spec 144297 kit\u003c\/strong\u003e ensures correct clearances and proper oiling in the valvetrain, exactly as the factory intended. Unlike generic aftermarket parts, this kit is built to Royal Enfield tolerances and is a \u003cstrong data-end=\"1100\" data-start=\"1078\"\u003edirect replacement\u003c\/strong\u003e for the original tappet \u0026amp; guide assembly supplied on CI Bullet models.\u003c\/p\u003e\n\u003cp data-end=\"1486\" data-start=\"1175\"\u003eThis is an ideal part for \u003cstrong data-end=\"1262\" data-start=\"1201\"\u003erestoration projects, rebuilds, or preventive maintenance\u003c\/strong\u003e on older Bullets that are still doing duty as daily riders or long-distance tourers. If you are rebuilding a cast-iron Bullet 350\/500 engine, this kit should be changed along with cam, pushrods, and valve gear inspection.\u003c\/p\u003e\n\u003cblockquote data-end=\"1580\" data-start=\"1488\"\u003e\n\u003cp data-end=\"1580\" data-start=\"1490\"\u003e🔴 \u003cstrong data-end=\"1578\" data-start=\"1493\"\u003eNot for UCE, J-Series, Himalayan, Meteor, 650 Twins or modern BS3\/BS4\/BS6 models.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp data-end=\"1730\" data-start=\"1582\"\u003eFor some older export \/ special editions, please cross-check with your mechanic or share your VIN\/engine number with us on WhatsApp before ordering.\u003c\/p\u003e\n\u003chr data-end=\"1735\" data-start=\"1732\"\u003e\n\u003ch2 data-end=\"1767\" data-start=\"1737\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"2629\" data-start=\"1769\"\u003e\n\u003cli data-end=\"1852\" data-start=\"1769\"\u003e\n\u003cp data-end=\"1852\" data-start=\"1771\"\u003e\u003cstrong data-end=\"1807\" data-start=\"1771\"\u003eGenuine Royal Enfield spare part\u003c\/strong\u003e – Tappets \u0026amp; Guide Kit, Part No. \u003cstrong data-end=\"1850\" data-start=\"1840\"\u003e144297\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1939\" data-start=\"1853\"\u003e\n\u003cp data-end=\"1939\" data-start=\"1855\"\u003eDesigned specifically for \u003cstrong data-end=\"1926\" data-start=\"1881\"\u003ecast-iron Bullet 350 \u0026amp; Bullet 500 engines\u003c\/strong\u003e (pre-UCE).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2038\" data-start=\"1940\"\u003e\n\u003cp data-end=\"2038\" data-start=\"1942\"\u003eHelps restore \u003cstrong data-end=\"2012\" data-start=\"1956\"\u003ecorrect valve timing and smooth valvetrain operation\u003c\/strong\u003e, reducing tappet noise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2127\" data-start=\"2039\"\u003e\n\u003cp data-end=\"2127\" data-start=\"2041\"\u003eOEM machining and metallurgy for \u003cstrong data-end=\"2124\" data-start=\"2074\"\u003eproper oil flow, heat resistance and long life\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2224\" data-start=\"2128\"\u003e\n\u003cp data-end=\"2224\" data-start=\"2130\"\u003e\u003cstrong data-end=\"2156\" data-start=\"2130\"\u003eDirect-fit replacement\u003c\/strong\u003e for original tappet \u0026amp; guide assembly – no modifications required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2321\" data-start=\"2225\"\u003e\n\u003cp data-end=\"2321\" data-start=\"2227\"\u003eIdeal for \u003cstrong data-end=\"2299\" data-start=\"2237\"\u003eengine rebuilds, restorations and high-mileage maintenance\u003c\/strong\u003e on classic Bullets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2418\" data-start=\"2322\"\u003e\n\u003cp data-end=\"2418\" data-start=\"2324\"\u003eSupplied as a \u003cstrong data-end=\"2354\" data-start=\"2338\"\u003ecomplete kit\u003c\/strong\u003e – tappets + guides, ready to install with qualified mechanic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2515\" data-start=\"2419\"\u003e\n\u003cp data-end=\"2515\" data-start=\"2421\"\u003eBacked by Under The Hood’s \u003cstrong data-end=\"2475\" data-start=\"2448\"\u003egenuine-parts assurance\u003c\/strong\u003e and careful packing for safe transit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2629\" data-start=\"2516\"\u003e\n\u003cp data-end=\"2629\" data-start=\"2518\"\u003eHelps improve \u003cstrong data-end=\"2591\" data-start=\"2532\"\u003estarting, compression, performance and engine longevity\u003c\/strong\u003e when paired with a healthy top-end.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2634\" data-start=\"2631\"\u003e\n\u003ch2 data-end=\"2660\" data-start=\"2636\"\u003eCompatibility Table\u003c\/h2\u003e\n\u003ch3 data-end=\"2706\" data-start=\"2662\"\u003e✅ Confirmed Fitment \u003c\/h3\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=\"3246\" data-start=\"2708\"\u003e\n\u003cthead data-end=\"2842\" data-start=\"2708\"\u003e\n\u003ctr data-end=\"2842\" data-start=\"2708\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2743\" data-start=\"2708\"\u003eModel Name\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2765\" data-start=\"2743\"\u003eEngine Type\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2780\" data-start=\"2765\"\u003eDisplacement\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2804\" data-start=\"2780\"\u003eApprox. Years*\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2842\" data-start=\"2804\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"3246\" data-start=\"2978\"\u003e\n\u003ctr data-end=\"3112\" data-start=\"2978\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3013\" data-start=\"2978\"\u003eBullet 350 (Standard \/ CI)\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3035\" data-start=\"3013\"\u003eCast Iron\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3050\" data-start=\"3035\"\u003e346cc\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3074\" data-start=\"3050\"\u003e~1955–early 2000s\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3112\" data-start=\"3074\"\u003eClassic CI Bullet, points\/CB type.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3246\" data-start=\"3113\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3148\" data-start=\"3113\"\u003eBullet 500 (Cast Iron)\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3170\" data-start=\"3148\"\u003eCast Iron\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3185\" data-start=\"3170\"\u003e499cc\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3209\" data-start=\"3185\"\u003e~1990s–early 2000s\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3246\" data-start=\"3209\"\u003eIron-barrel Bullet 500 (pre-AVL).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-end=\"3962\" data-start=\"3922\"\u003e\u003cspan style=\"color: rgb(255, 6, 6);\"\u003e\u003cstrong\u003ePLEASE CHECK PART NUMBER BEFORE PURCHASE \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"4038\" data-start=\"3964\"\u003eUnder The Hood will happily assist on WhatsApp before you place the order.\u003c\/p\u003e\n\u003chr data-end=\"4043\" data-start=\"4040\"\u003e\n\u003ch2 data-end=\"4058\" data-start=\"4045\"\u003eVariants\u003c\/h2\u003e\n\u003cp data-end=\"4114\" data-start=\"4060\"\u003eThis product is supplied as a \u003cstrong data-end=\"4113\" data-start=\"4090\"\u003esingle standard kit\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-end=\"4236\" data-start=\"4116\"\u003e\n\u003cli data-end=\"4160\" data-start=\"4116\"\u003e\n\u003cp data-end=\"4160\" data-start=\"4118\"\u003e\u003cstrong data-end=\"4130\" data-start=\"4118\"\u003eVariant:\u003c\/strong\u003e Tappets \u0026amp; Guide Kit – 1 set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"4236\" data-start=\"4161\"\u003e\n\u003cp data-end=\"4236\" data-start=\"4163\"\u003e\u003cstrong data-end=\"4176\" data-start=\"4163\"\u003eContents:\u003c\/strong\u003e 2× tappets + matching guide block(s) (as per OEM packing)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"4266\" data-start=\"4238\"\u003eNo LH\/RH or colour variants.\u003c\/p\u003e\n\u003chr data-end=\"4271\" data-start=\"4268\"\u003e\n\u003ch2 data-end=\"4294\" data-start=\"4273\"\u003eFAQs \u003c\/h2\u003e\n\u003cp data-end=\"4584\" data-start=\"4296\"\u003e\u003cstrong data-end=\"4395\" data-start=\"4296\"\u003eQ1. Will this Tappets \u0026amp; Guide Kit (144297) fit my Royal Enfield Classic 350 or Classic 500 UCE?\u003c\/strong\u003e\u003cbr data-end=\"4398\" data-start=\"4395\"\u003eNo. This kit is for \u003cstrong data-end=\"4457\" data-start=\"4418\"\u003eolder cast-iron Bullet engines only\u003c\/strong\u003e, not for UCE, J-Series or EFI\/BS3\/BS4\/BS6 models like Classic 350, Classic 500, Thunderbird, Himalayan, Meteor or 650 Twins.\u003c\/p\u003e\n\u003chr data-end=\"4589\" data-start=\"4586\"\u003e\n\u003cp data-end=\"4968\" data-start=\"4591\"\u003e\u003cstrong data-end=\"4655\" data-start=\"4591\"\u003eQ2. How do I know if my tappets and guides need replacement?\u003c\/strong\u003e\u003cbr data-end=\"4658\" data-start=\"4655\"\u003eCommon signs include \u003cstrong data-end=\"4700\" data-start=\"4679\"\u003eloud tappet noise\u003c\/strong\u003e, noticeable \u003cstrong data-end=\"4738\" data-start=\"4713\"\u003eticking from the head\u003c\/strong\u003e, loss of compression, hard starting, and reduced performance even after correct tappet adjustment. If your mechanic finds excessive play in the tappets or guides during overhaul, replacing them with this OEM kit is recommended.\u003c\/p\u003e\n\u003chr data-end=\"4973\" data-start=\"4970\"\u003e\n\u003cp data-end=\"5206\" data-start=\"4975\"\u003e\u003cstrong data-end=\"5028\" data-start=\"4975\"\u003eQ3. Is this genuine Royal Enfield or aftermarket?\u003c\/strong\u003e\u003cbr data-end=\"5031\" data-start=\"5028\"\u003eThis listing is for a \u003cstrong data-end=\"5100\" data-start=\"5053\"\u003egenuine Royal Enfield part, Part No. 144297\u003c\/strong\u003e, as referenced in official price lists and microfiche. We do \u003cstrong data-end=\"5169\" data-start=\"5162\"\u003enot\u003c\/strong\u003e mix generic copies under this SKU.\u003c\/p\u003e\n\u003chr data-end=\"5211\" data-start=\"5208\"\u003e\n\u003cp data-end=\"5437\" data-start=\"5213\"\u003e\u003cstrong data-end=\"5258\" data-start=\"5213\"\u003eQ4. Does this kit include valves as well?\u003c\/strong\u003e\u003cbr data-end=\"5261\" data-start=\"5258\"\u003eNo. Despite some aftermarket “valve \u0026amp; guide kits” using 144297 in their description, this listing is strictly for the \u003cstrong data-end=\"5412\" data-start=\"5379\"\u003eOEM-style tappets \u0026amp; guide kit\u003c\/strong\u003e, not a full valve kit.\u003c\/p\u003e\n\u003chr data-end=\"5442\" data-start=\"5439\"\u003e\n\u003cp data-end=\"5671\" data-start=\"5444\"\u003e\u003cstrong data-end=\"5479\" data-start=\"5444\"\u003eQ5. Can I install this at home?\u003c\/strong\u003e\u003cbr data-end=\"5482\" data-start=\"5479\"\u003eWe strongly recommend installation by an experienced \u003cstrong data-end=\"5561\" data-start=\"5535\"\u003eRoyal Enfield mechanic\u003c\/strong\u003e. Proper valve timing, tappet clearance, and seating are critical – incorrect assembly can damage your engine.\u003c\/p\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50770040029479,"sku":null,"price":415.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/ChatGPTImageDec2_2025_10_22_57PM_fa1305ca-0b82-448c-a28e-1c3b960e8a82.png?v=1764701559","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-tappets-guide-kit-144297-bullet-350-500","provider":"UNDER THE HOOD","version":"1.0","type":"link"}