{"product_id":"main-wiring-harness-1040607b-royal-enfield-classic-500-bullet-500-bs4","title":"Main Wiring Harness – 1040607\/B | Genuine Royal Enfield OEM – Fits Classic 500 BS4 \u0026 Bullet 500 BS4","description":"\u003cp data-end=\"879\" data-start=\"614\"\u003eRestore your Royal Enfield’s electrical reliability with the \u003cstrong data-end=\"727\" data-start=\"675\"\u003egenuine Main Wiring Harness (Part No. 1040607\/B)\u003c\/strong\u003e. This OEM component is factory-engineered for \u003cstrong data-end=\"793\" data-start=\"774\"\u003eClassic 500 BS4\u003c\/strong\u003e and \u003cstrong data-end=\"816\" data-start=\"798\"\u003eBullet 500 BS4\u003c\/strong\u003e, ensuring precise compatibility and long-term dependability.\u003c\/p\u003e\n\u003cp data-end=\"1209\" data-start=\"881\"\u003eAs the backbone of your motorcycle’s electrical system, the main harness powers everything from ignition to lighting and indicators. A worn or damaged harness can lead to intermittent failures, short circuits, or complete electrical breakdowns. Replacing it with the correct OEM part restores factory functionality and safety.\u003c\/p\u003e\n\u003cp data-end=\"1486\" data-start=\"1211\"\u003eThe \u003cstrong data-end=\"1236\" data-start=\"1215\"\u003e1040607\/B harness\u003c\/strong\u003e comes with all original connectors and protective sheathing, designed to withstand heat, vibration, and India’s demanding road conditions. It installs directly into your motorcycle’s stock wiring layout—no cutting, splicing, or guesswork required.\u003c\/p\u003e\n\u003cp data-end=\"1799\" data-start=\"1488\"\u003eAt \u003cem data-end=\"1518\" data-start=\"1491\"\u003eUnder The Hood (Varanasi)\u003c\/em\u003e, we provide \u003cstrong data-end=\"1564\" data-start=\"1531\"\u003eauthentic Royal Enfield parts\u003c\/strong\u003e, backed with GST invoicing, quality inspection, and fast pan-India shipping. While competitor listings often overstate compatibility, this listing is \u003cstrong data-end=\"1737\" data-start=\"1715\"\u003eprecisely verified\u003c\/strong\u003e for 500cc BS4 models only—helping you shop with confidence.\u003c\/p\u003e\n\u003chr data-end=\"1804\" data-start=\"1801\"\u003e\n\u003ch2 data-end=\"1826\" data-start=\"1806\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"2391\" data-start=\"1828\"\u003e\n\u003cli data-end=\"1895\" data-start=\"1828\"\u003e\n\u003cp data-end=\"1895\" data-start=\"1830\"\u003e\u003cstrong data-end=\"1855\" data-start=\"1830\"\u003eOEM Verified Fitment:\u003c\/strong\u003e Matches factory part number 1040607\/B\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1962\" data-start=\"1896\"\u003e\n\u003cp data-end=\"1962\" data-start=\"1898\"\u003e\u003cstrong data-end=\"1919\" data-start=\"1898\"\u003eConfirmed Models:\u003c\/strong\u003e Classic 500 BS4 and Bullet 500 BS4 (EFI)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2024\" data-start=\"1963\"\u003e\n\u003cp data-end=\"2024\" data-start=\"1965\"\u003e\u003cstrong data-end=\"1983\" data-start=\"1965\"\u003ePlug-and-Play:\u003c\/strong\u003e Direct bolt-on fit with OEM connectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2096\" data-start=\"2025\"\u003e\n\u003cp data-end=\"2096\" data-start=\"2027\"\u003e\u003cstrong data-end=\"2045\" data-start=\"2027\"\u003eDurable Build:\u003c\/strong\u003e Heat-resistant insulation and protective sleeves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2185\" data-start=\"2097\"\u003e\n\u003cp data-end=\"2185\" data-start=\"2099\"\u003e\u003cstrong data-end=\"2124\" data-start=\"2099\"\u003eRestores Reliability:\u003c\/strong\u003e Eliminates shorts, weak signals, and intermittent failures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2256\" data-start=\"2186\"\u003e\n\u003cp data-end=\"2256\" data-start=\"2188\"\u003e\u003cstrong data-end=\"2209\" data-start=\"2188\"\u003eFactory Standard:\u003c\/strong\u003e Genuine Royal Enfield spare, not aftermarket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2334\" data-start=\"2257\"\u003e\n\u003cp data-end=\"2334\" data-start=\"2259\"\u003e\u003cstrong data-end=\"2289\" data-start=\"2259\"\u003eQC Checked \u0026amp; GST Invoiced:\u003c\/strong\u003e Authenticity guaranteed with each purchase\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2391\" data-start=\"2335\"\u003e\n\u003cp data-end=\"2391\" data-start=\"2337\"\u003e\u003cstrong data-end=\"2355\" data-start=\"2337\"\u003eFast Shipping:\u003c\/strong\u003e Ready stock with secure packaging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2396\" data-start=\"2393\"\u003e\n\u003ch2 data-end=\"2425\" data-start=\"2398\"\u003eCompatibility Table\u003c\/h2\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group w-fit _tableWrapper_1rjym_13 flex flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2734\" data-start=\"2427\"\u003e\n\u003cthead data-end=\"2503\" data-start=\"2427\"\u003e\n\u003ctr data-end=\"2503\" data-start=\"2427\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2447\" data-start=\"2427\"\u003eModel\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2456\" data-start=\"2447\"\u003eEngine\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2472\" data-start=\"2456\"\u003eEmission Norm\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2486\" data-start=\"2472\"\u003eYears\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2503\" data-start=\"2486\"\u003eFitment\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2734\" data-start=\"2581\"\u003e\n\u003ctr data-end=\"2657\" data-start=\"2581\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2601\" data-start=\"2581\"\u003eClassic 500\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2610\" data-start=\"2601\"\u003e499cc\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2626\" data-start=\"2610\"\u003eBS4 EFI\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2640\" data-start=\"2626\"\u003e2017–2020\u003c\/td\u003e\n\u003ctd data-end=\"2657\" data-start=\"2640\" data-col-size=\"sm\"\u003e✅ Confirmed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2734\" data-start=\"2658\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2678\" data-start=\"2658\"\u003eBullet 500\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2687\" data-start=\"2678\"\u003e499cc\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2703\" data-start=\"2687\"\u003eBS4 EFI\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2717\" data-start=\"2703\"\u003e2017–2020\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2734\" data-start=\"2717\"\u003e✅ Confirmed\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=\"2851\" data-start=\"2736\"\u003e❌ Not compatible with 350cc models, Thunderbird, Himalayan, Interceptor 650, Meteor, or J-Series (Reborn\/Hunter).\u003c\/p\u003e\n\u003chr data-end=\"2856\" data-start=\"2853\"\u003e\n\u003ch2 data-end=\"2883\" data-start=\"2858\"\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul data-end=\"2928\" data-start=\"2884\"\u003e\n\u003cli data-end=\"2928\" data-start=\"2884\"\u003e\n\u003cp data-end=\"2928\" data-start=\"2886\"\u003e1 × Main Wiring Harness – Part 1040607\/B\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2933\" data-start=\"2930\"\u003e\n\u003ch2 data-end=\"2961\" data-start=\"2935\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul data-end=\"3209\" data-start=\"2963\"\u003e\n\u003cli data-end=\"3038\" data-start=\"2963\"\u003e\n\u003cp data-end=\"3038\" data-start=\"2965\"\u003e\u003cstrong data-end=\"2982\" data-start=\"2965\"\u003eTools Needed:\u003c\/strong\u003e Basic screwdrivers, spanners, and cable routing clips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3115\" data-start=\"3039\"\u003e\n\u003cp data-end=\"3115\" data-start=\"3041\"\u003e\u003cstrong data-end=\"3063\" data-start=\"3041\"\u003eInstallation Time:\u003c\/strong\u003e 45–60 minutes (professional mechanic recommended)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3209\" data-start=\"3116\"\u003e\n\u003cp data-end=\"3209\" data-start=\"3118\"\u003e\u003cstrong data-end=\"3126\" data-start=\"3118\"\u003eTip:\u003c\/strong\u003e Route new harness exactly like the old one; avoid pinching wires under tank\/seat\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3214\" data-start=\"3211\"\u003e\n\u003cul data-end=\"3436\" data-start=\"3244\"\u003e\n\u003cli data-end=\"3436\" data-start=\"3370\"\u003e\n\u003cp data-end=\"3436\" data-start=\"3372\"\u003e\u003cstrong data-end=\"3389\" data-start=\"3372\"\u003eAuthenticity:\u003c\/strong\u003e 100% OEM Royal Enfield part with GST invoice\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"3092\" data-start=\"3083\"\u003eFAQs\u003c\/h2\u003e\n\u003cp data-end=\"3270\" data-start=\"3093\"\u003e\u003cstrong data-end=\"3127\" data-start=\"3093\"\u003eQ1. What exactly is 1040607\/B?\u003c\/strong\u003e\u003cbr data-end=\"3130\" data-start=\"3127\"\u003eIt’s the \u003cstrong data-end=\"3162\" data-start=\"3139\"\u003eOEM “HARNESS, MAIN”\u003c\/strong\u003e (factory main wiring loom) as named in the official catalog\/ratelist. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"3485\" data-start=\"3272\"\u003e\u003cstrong data-end=\"3303\" data-start=\"3272\"\u003eQ2. Which bike does it fit?\u003c\/strong\u003e\u003cbr data-end=\"3306\" data-start=\"3303\"\u003e\u003cstrong data-end=\"3338\" data-start=\"3306\"\u003eClassic 500 (BS4, 2017–2020)\u003c\/strong\u003e — confirmed by reputable Indian sellers. Share your VIN if you need us to double-check your exact variant. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"3709\" data-start=\"3487\"\u003e\u003cstrong data-end=\"3543\" data-start=\"3487\"\u003eQ3. Does it include sub-harnesses (tail\/indicators)?\u003c\/strong\u003e\u003cbr data-end=\"3546\" data-start=\"3543\"\u003eThis is the \u003cstrong data-end=\"3574\" data-start=\"3558\"\u003emain harness\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"3884\" data-start=\"3711\"\u003e\u003cstrong data-end=\"3752\" data-start=\"3711\"\u003eQ4. Is it genuine OEM or aftermarket?\u003c\/strong\u003e\u003cbr data-end=\"3755\" data-start=\"3752\"\u003e\u003cstrong data-end=\"3770\" data-start=\"3755\"\u003eGenuine OEM\u003c\/strong\u003e Royal Enfield, listed in the official catalog with part number 1040607\/B. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"4051\" data-start=\"3886\"\u003e\u003cstrong data-end=\"3918\" data-start=\"3886\"\u003eQ5. Why replace the harness?\u003c\/strong\u003e\u003cbr data-end=\"3921\" data-start=\"3918\"\u003eTo fix \u003cstrong data-end=\"3995\" data-start=\"3928\"\u003eintermittent electrics, cracked insulation, corroded connectors\u003c\/strong\u003e or previous non-OEM splices that cause shorts\/misfires.\u003c\/p\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50408485716263,"sku":null,"price":5869.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/DF3F1B33-0155-4240-97F2-AF668CAA2A89.jpg?v=1757615042","url":"https:\/\/underthehood.co.in\/products\/main-wiring-harness-1040607b-royal-enfield-classic-500-bullet-500-bs4","provider":"UNDER THE HOOD","version":"1.0","type":"link"}