{"product_id":"royal-enfield-1040045-b-piece-mudguard-thunderbird-350x-bs4","title":"Royal Enfield 1040045\/B Piece Mudguard – Rear Mudguard Section for Thunderbird 350X (TBX) BS4","description":"\u003cp data-start=\"236\" data-end=\"680\"\u003eThe Royal Enfield \u003cstrong data-start=\"254\" data-end=\"282\"\u003e1040045\/B Piece Mudguard\u003c\/strong\u003e is a genuine OEM rear mudguard section designed specifically for the \u003cstrong data-start=\"352\" data-end=\"378\"\u003eThunderbird 350X (TBX)\u003c\/strong\u003e BS4 models. Listed in Royal Enfield internal scrap\/parts documentation as \u003cstrong data-start=\"453\" data-end=\"491\"\u003e“TB 350 X Rear Mudguard 1040045\/B”\u003c\/strong\u003e, this part is part of the rear fender assembly that helps control mud, water and road debris thrown up by the rear tyre, keeping the bike cleaner and protecting the frame and underbody.\u003c\/p\u003e\n\u003cp data-start=\"682\" data-end=\"1067\"\u003eUnlike generic aftermarket fenders, this \u003cstrong data-start=\"723\" data-end=\"749\"\u003efactory piece mudguard\u003c\/strong\u003e matches the original mounting points and contour of the Thunderbird X rear section, so it aligns correctly with the rear mudguard assembly, tail-lamp bracket and side panels. Royal Enfield price lists identify \u003cstrong data-start=\"960\" data-end=\"973\"\u003e1040045\/B\u003c\/strong\u003e as “PIECE MUDGUARD,” confirming it as a dedicated OE component, not a universal accessory.\u003c\/p\u003e\n\u003cp data-start=\"1069\" data-end=\"1554\"\u003eThis is ideal if your TBX rear mudguard is cracked, rusted, or damaged in a minor crash and you want to restore the stock look and splash protection without compromising on fit or durability. Workshops and DIY owners can install it as a direct replacement using stock hardware (bolts, washers, stays). To minimise returns, we currently list \u003cstrong data-start=\"1410\" data-end=\"1453\"\u003eonly the confirmed Thunderbird 350X BS4\u003c\/strong\u003e fitment; other claimed applications seen on third-party sites are noted separately as unverified.\u003c\/p\u003e\n\u003chr data-start=\"1556\" data-end=\"1559\"\u003e\n\u003ch2 data-start=\"1561\" data-end=\"1576\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1578\" data-end=\"2596\"\u003e\n\u003cli data-start=\"1578\" data-end=\"1692\"\u003e\n\u003cp data-start=\"1580\" data-end=\"1692\"\u003e\u003cstrong data-start=\"1580\" data-end=\"1613\"\u003eGenuine Royal Enfield OE part\u003c\/strong\u003e – Part No. \u003cstrong data-start=\"1625\" data-end=\"1638\"\u003e1040045\/B\u003c\/strong\u003e (“Piece Mudguard”) as per official RE price lists.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1693\" data-end=\"1828\"\u003e\n\u003cp data-start=\"1695\" data-end=\"1828\"\u003eDesigned specifically for the \u003cstrong data-start=\"1725\" data-end=\"1773\"\u003eThunderbird 350X (TBX) rear mudguard section\u003c\/strong\u003e as listed in internal TBX part scrap documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1829\" data-end=\"1969\"\u003e\n\u003cp data-start=\"1831\" data-end=\"1969\"\u003eRestores proper \u003cstrong data-start=\"1847\" data-end=\"1880\"\u003emud, water and debris control\u003c\/strong\u003e from the rear wheel for cleaner running and better protection of frame and underbody.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1970\" data-end=\"2113\"\u003e\n\u003cp data-start=\"1972\" data-end=\"2113\"\u003e\u003cstrong data-start=\"1972\" data-end=\"1998\"\u003eDirect-fit OE geometry\u003c\/strong\u003e – correct curvature and mounting pattern to integrate with the TBX rear fender assembly and supporting brackets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2114\" data-end=\"2254\"\u003e\n\u003cp data-start=\"2116\" data-end=\"2254\"\u003eMaintains \u003cstrong data-start=\"2126\" data-end=\"2156\"\u003efactory look and alignment\u003c\/strong\u003e with tail-lamp, indicators and side panels when used with the correct TBX rear fender assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2255\" data-end=\"2395\"\u003e\n\u003cp data-start=\"2257\" data-end=\"2395\"\u003eManufactured to \u003cstrong data-start=\"2273\" data-end=\"2308\"\u003eRoyal Enfield quality standards\u003c\/strong\u003e for thickness, finish and durability – far superior to low-cost local fabrications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2396\" data-end=\"2484\"\u003e\n\u003cp data-start=\"2398\" data-end=\"2484\"\u003eSupplied as a \u003cstrong data-start=\"2412\" data-end=\"2437\"\u003esingle mudguard piece\u003c\/strong\u003e (no stays, lamps, bolts or wiring included).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2485\" data-end=\"2596\"\u003e\n\u003cp data-start=\"2487\" data-end=\"2596\"\u003eIdeal for \u003cstrong data-start=\"2497\" data-end=\"2539\"\u003eaccident repair, corrosion replacement\u003c\/strong\u003e and professional workshop use on Thunderbird 350X BS4.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2598\" data-end=\"2601\"\u003e\n\u003ch2 data-start=\"2603\" data-end=\"2625\"\u003eCompatibility Table\u003c\/h2\u003e\n\u003cp data-start=\"2627\" data-end=\"2715\"\u003e\u003cstrong data-start=\"2627\" data-end=\"2652\"\u003eConfirmed Fitment (✔)\u003c\/strong\u003e\u003cbr data-start=\"2652\" data-end=\"2655\"\u003eBased on internal scrap list + dealer catalogue cross-check:\u003c\/p\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=\"2717\" data-end=\"3059\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2717\" data-end=\"2821\"\u003e\n\u003ctr data-start=\"2717\" data-end=\"2821\"\u003e\n\u003cth data-start=\"2717\" data-end=\"2742\" data-col-size=\"sm\"\u003eModel\u003c\/th\u003e\n\u003cth data-start=\"2742\" data-end=\"2762\" data-col-size=\"sm\"\u003eEngine \/ Platform\u003c\/th\u003e\n\u003cth data-start=\"2762\" data-end=\"2788\" data-col-size=\"sm\"\u003eEmission \/ Years\u003c\/th\u003e\n\u003cth data-start=\"2788\" data-end=\"2821\" data-col-size=\"md\"\u003ePosition \/ Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2928\" data-end=\"3059\"\u003e\n\u003ctr data-start=\"2928\" data-end=\"3059\"\u003e\n\u003ctd data-start=\"2928\" data-end=\"2953\" data-col-size=\"sm\"\u003eThunderbird 350X (TBX)\u003c\/td\u003e\n\u003ctd data-start=\"2953\" data-end=\"2973\" data-col-size=\"sm\"\u003e346 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"2973\" data-end=\"3002\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2975\" data-end=\"3001\"\u003eBS4 \/ ABS (~2018–2020)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"3002\" data-end=\"3059\" data-col-size=\"md\"\u003eRear mudguard piece – part of rear fender assembly ✔\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-start=\"3270\" data-end=\"3378\"\u003e\u003cspan style=\"color: rgb(255, 16, 16);\"\u003e\u003cstrong\u003eCHECK PART NUMBER BEFORE PURCHASE \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\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=\"3380\" data-end=\"4055\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"3380\" data-end=\"3470\"\u003e\n\u003ctr data-start=\"3380\" data-end=\"3470\"\u003e\n\u003cth data-start=\"3380\" data-end=\"3412\" data-col-size=\"sm\"\u003eModel\u003c\/th\u003e\n\u003cth data-start=\"3412\" data-end=\"3432\" data-col-size=\"sm\"\u003eEngine \/ Platform\u003c\/th\u003e\n\u003cth data-start=\"3432\" data-end=\"3451\" data-col-size=\"sm\"\u003eEmission \/ Years\u003c\/th\u003e\n\u003cth data-start=\"3451\" data-end=\"3461\" data-col-size=\"sm\"\u003eStatus\u003c\/th\u003e\n\u003cth data-start=\"3461\" data-end=\"3470\" data-col-size=\"md\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3561\" data-end=\"4055\"\u003e\n\u003ctr data-start=\"3561\" data-end=\"3745\"\u003e\n\u003ctd data-start=\"3561\" data-end=\"3593\" data-col-size=\"sm\"\u003eThunderbird X 500 (TBX 500)\u003c\/td\u003e\n\u003ctd data-start=\"3593\" data-end=\"3613\" data-col-size=\"sm\"\u003e499 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"3613\" data-end=\"3632\" data-col-size=\"sm\"\u003eBS4 \/ ABS\u003c\/td\u003e\n\u003ctd data-start=\"3632\" data-end=\"3640\" data-col-size=\"sm\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd data-start=\"3640\" data-end=\"3745\" data-col-size=\"md\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3746\" data-end=\"3899\"\u003e\n\u003ctd data-start=\"3746\" data-end=\"3778\" data-col-size=\"sm\"\u003eThunderbird 350 (non-X)\u003c\/td\u003e\n\u003ctd data-start=\"3778\" data-end=\"3798\" data-col-size=\"sm\"\u003e346 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"3798\" data-end=\"3817\" data-col-size=\"sm\"\u003eBS4\u003c\/td\u003e\n\u003ctd data-start=\"3817\" data-end=\"3825\" data-col-size=\"sm\"\u003e❓\u003c\/td\u003e\n\u003ctd data-start=\"3825\" data-end=\"3899\" data-col-size=\"md\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3900\" data-end=\"4055\"\u003e\n\u003ctd data-start=\"3900\" data-end=\"3932\" data-col-size=\"sm\"\u003eThunderbird 500 (non-X)\u003c\/td\u003e\n\u003ctd data-start=\"3932\" data-end=\"3952\" data-col-size=\"sm\"\u003e499 cc UCE\u003c\/td\u003e\n\u003ctd data-start=\"3952\" data-end=\"3971\" data-col-size=\"sm\"\u003eBS4\u003c\/td\u003e\n\u003ctd data-start=\"3971\" data-end=\"3979\" data-col-size=\"sm\"\u003e❓\u003c\/td\u003e\n\u003ctd data-start=\"3979\" data-end=\"4055\" data-col-size=\"md\"\u003e\u003cbr\u003e\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=\"4057\" data-end=\"4290\"\u003e\n\u003cp data-start=\"4059\" data-end=\"4290\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr data-start=\"4292\" data-end=\"4295\"\u003e\n\u003ch2 data-start=\"4297\" data-end=\"4308\"\u003eVariants\u003c\/h2\u003e\n\u003cul data-start=\"4310\" data-end=\"4519\"\u003e\n\u003cli data-start=\"4310\" data-end=\"4519\"\u003e\n\u003cp data-start=\"4312\" data-end=\"4333\"\u003e\u003cstrong data-start=\"4312\" data-end=\"4331\"\u003eSingle Variant:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4336\" data-end=\"4519\"\u003e\n\u003cli data-start=\"4336\" data-end=\"4366\"\u003e\n\u003cp data-start=\"4338\" data-end=\"4366\"\u003e\u003cstrong data-start=\"4338\" data-end=\"4354\"\u003ePart Number:\u003c\/strong\u003e 1040045\/B\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4369\" data-end=\"4427\"\u003e\n\u003cp data-start=\"4371\" data-end=\"4427\"\u003e\u003cstrong data-start=\"4371\" data-end=\"4380\"\u003eType:\u003c\/strong\u003e Rear piece mudguard (section of rear fender)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4430\" data-end=\"4519\"\u003e\n\u003cp data-start=\"4432\" data-end=\"4519\"\u003e\u003cstrong data-start=\"4432\" data-end=\"4451\"\u003eFinish \/ Color:\u003c\/strong\u003e Factory finish (as supplied by Royal Enfield for TBX rear fender)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4521\" data-end=\"4645\"\u003eNo LH\/RH or color variants are defined under this part number; those are handled by separate mudguard assembly part numbers.\u003c\/p\u003e\n\u003chr data-start=\"4647\" data-end=\"4650\"\u003e\n\u003ch2 data-start=\"4652\" data-end=\"4659\"\u003eFAQs\u003c\/h2\u003e\n\u003cp data-start=\"4661\" data-end=\"4931\"\u003e\u003cstrong data-start=\"4661\" data-end=\"4712\"\u003eQ1. Will 1040045\/B fit my Thunderbird 350X BS4?\u003c\/strong\u003e\u003cbr data-start=\"4712\" data-end=\"4715\"\u003eYes. Internal Royal Enfield scrap documentation clearly lists \u003cstrong data-start=\"4777\" data-end=\"4815\"\u003e“TB 350 X Rear Mudguard 1040045\/B”\u003c\/strong\u003e, and dealer listings show this as a TBX rear piece mudguard. This is the only application we treat as confirmed.\u003c\/p\u003e\n\u003cp data-start=\"4933\" data-end=\"5336\"\u003e\u003cstrong data-start=\"4933\" data-end=\"5010\"\u003eQ2. Does this also fit Thunderbird X 500 or standard Thunderbird 350\/500?\u003c\/strong\u003e\u003cbr data-start=\"5010\" data-end=\"5013\"\u003eSome online sellers claim compatibility with \u003cstrong data-start=\"5058\" data-end=\"5107\"\u003eThunderbird X 500 and Thunderbird 350\/500 BS4\u003c\/strong\u003e, but we have not been able to cross-verify through an official RE microfiche for those models. \u003c\/p\u003e\n\u003cp data-start=\"5338\" data-end=\"5573\"\u003e\u003cstrong data-start=\"5338\" data-end=\"5384\"\u003eQ3. Is this a full rear mudguard assembly?\u003c\/strong\u003e\u003cbr data-start=\"5384\" data-end=\"5387\"\u003eNo. \u003cstrong data-start=\"5391\" data-end=\"5426\"\u003e1040045\/B is a “piece mudguard”\u003c\/strong\u003e – a specific section within the rear mudguard system. Complete painted rear mudguard assemblies (with different part numbers) are sold separately.\u003c\/p\u003e\n\u003cp data-start=\"5575\" data-end=\"5833\"\u003e\u003cstrong data-start=\"5575\" data-end=\"5624\"\u003eQ4. What hardware do I need for installation?\u003c\/strong\u003e\u003cbr data-start=\"5624\" data-end=\"5627\"\u003eYou generally reuse the \u003cstrong data-start=\"5651\" data-end=\"5688\"\u003eOE bolts, nuts, washers and stays\u003c\/strong\u003e. If the bike has seen corrosion or accident damage, we recommend replacing rusty fasteners and rubber washers to avoid rattles and paint damage.\u003c\/p\u003e\n\u003cp data-start=\"5835\" data-end=\"6031\"\u003e\u003cstrong data-start=\"5835\" data-end=\"5888\"\u003eQ5. Is this genuine Royal Enfield or aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"5888\" data-end=\"5891\"\u003eThis is a \u003cstrong data-start=\"5901\" data-end=\"5932\"\u003egenuine Royal Enfield spare\u003c\/strong\u003e, listed as “PIECE MUDGUARD 1040045\/B” in official price lists and sold in OE-branded packaging.\u003c\/p\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50728763523367,"sku":null,"price":267.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/Royal_Enfield_1040045_B_Piece_Mudguard_for_Thunderbird_350X_BS4.png?v=1763974915","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-1040045-b-piece-mudguard-thunderbird-350x-bs4","provider":"UNDER THE HOOD","version":"1.0","type":"link"}