{"product_id":"royal-enfield-587400-d-rear-master-cylinder-himalayan","title":"Royal Enfield 587400\/D Master Cylinder Assembly – Rear Brake – OEM for Himalayan 411cc \u0026 Scram 411","description":"\u003cp data-end=\"1680\" data-start=\"1348\"\u003eRestore complete rear brake performance with the \u003cstrong data-end=\"1453\" data-start=\"1397\"\u003eRoyal Enfield 587400\/D Rear Master Cylinder Assembly\u003c\/strong\u003e, the exact OEM replacement component for \u003cstrong data-end=\"1553\" data-start=\"1495\"\u003eHimalayan 411cc and Scram 411 EFI models (Euro IV \u0026amp; V)\u003c\/strong\u003e. Precision-engineered to match factory specifications, this assembly ensures optimal brake lever response and fluid integrity.\u003c\/p\u003e\n\u003cp data-end=\"2086\" data-start=\"1682\"\u003eBuilt with high-strength aluminum housing, calibrated bore, internal piston, and reservoir interface, the unit seamlessly installs into your existing brake system without custom modifications. Ideal for regenerations, restoring pressure consistency, or replacing a leaking or damaged unit. Backed by authenticity, reliability, and compatibility assurance directly from Royal Enfield factory parts guides.\u003c\/p\u003e\n\u003chr data-end=\"2091\" data-start=\"2088\"\u003e\n\u003ch2 data-end=\"2113\" data-start=\"2093\"\u003e✔️ Key Features\u003c\/h2\u003e\n\u003cul data-end=\"2556\" data-start=\"2114\"\u003e\n\u003cli data-end=\"2195\" data-start=\"2114\"\u003e\n\u003cp data-end=\"2195\" data-start=\"2116\"\u003e✅ OEM \u003cstrong data-end=\"2139\" data-start=\"2122\"\u003ePart 587400\/D\u003c\/strong\u003e (supersedes 587400\/A) – Rear Master Cylinder Assembly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2272\" data-start=\"2196\"\u003e\n\u003cp data-end=\"2272\" data-start=\"2198\"\u003e✅ Designed exclusively for \u003cstrong data-end=\"2270\" data-start=\"2225\"\u003eHimalayan 411cc \u0026amp; Scram 411 EFI platforms\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2337\" data-start=\"2273\"\u003e\n\u003cp data-end=\"2337\" data-start=\"2275\"\u003e✅ Manufactured to Royal Enfield factory brake specifications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2421\" data-start=\"2338\"\u003e\n\u003cp data-end=\"2421\" data-start=\"2340\"\u003e✅ Rebuild-ready fit—restores brake pressure, prevents fluid leak and lever drag\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2493\" data-start=\"2422\"\u003e\n\u003cp data-end=\"2493\" data-start=\"2424\"\u003e✅ Includes housing, piston, and bore for direct bolt-in replacement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2556\" data-start=\"2494\"\u003e\n\u003cp data-end=\"2556\" data-start=\"2496\"\u003e✅ Ideal maintenance upgrade for OEM brake system longevity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2561\" data-start=\"2558\"\u003e\n\u003ch2 data-end=\"2590\" data-start=\"2563\"\u003e📋 Compatibility Table\u003c\/h2\u003e\n\u003cdiv class=\"_tableContainer_16hzy_1\"\u003e\n\u003cdiv class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2947\" data-start=\"2592\"\u003e\n\u003cthead data-end=\"2656\" data-start=\"2592\"\u003e\n\u003ctr data-end=\"2656\" data-start=\"2592\"\u003e\n\u003cth data-col-size=\"md\" data-end=\"2625\" data-start=\"2592\"\u003eModel\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"2656\" data-start=\"2625\"\u003eCompatibility with 587400\/D\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"2947\" data-start=\"2723\"\u003e\n\u003ctr data-end=\"2778\" data-start=\"2723\"\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2769\" data-start=\"2723\"\u003eRoyal Enfield Himalayan 411cc (Euro IV \/ V)\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2778\" data-start=\"2769\"\u003e✅ Yes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2821\" data-start=\"2779\"\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2812\" data-start=\"2779\"\u003eRoyal Enfield Scram 411\u003c\/td\u003e\n\u003ctd data-end=\"2821\" data-start=\"2812\" data-col-size=\"sm\"\u003e✅ Yes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2887\" data-start=\"2822\"\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2855\" data-start=\"2822\"\u003eHimalayan 450 or Guerrilla\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"2887\" data-start=\"2855\"\u003e❌ No (different part number)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"2947\" data-start=\"2888\"\u003e\n\u003ctd data-col-size=\"md\" data-end=\"2927\" data-start=\"2888\"\u003eClassic, Bullet, Thunderbird, Meteor\u003c\/td\u003e\n\u003ctd data-end=\"2947\" data-start=\"2927\" data-col-size=\"sm\"\u003e❌ Not compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 data-end=\"3622\" data-start=\"3589\"\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cp data-end=\"3753\" data-start=\"3624\"\u003e\u003cstrong data-end=\"3681\" data-start=\"3624\"\u003eQ1: Will this fit the Himalayan 450 or Guerrilla 450?\u003c\/strong\u003e\u003cbr data-end=\"3684\" data-start=\"3681\"\u003e❌ No—those platforms use a different rear M\/C part number and layout.\u003c\/p\u003e\n\u003cp data-end=\"3919\" data-start=\"3755\"\u003e\u003cstrong data-end=\"3835\" data-start=\"3755\"\u003eQ2: Is it compatible with other Royal Enfield models like Classic or Bullet?\u003c\/strong\u003e\u003cbr data-end=\"3838\" data-start=\"3835\"\u003e❌ No—the part is not listed in OEM catalogs outside the Himalayan\/Scram platform.\u003c\/p\u003e\n\u003cp data-end=\"4056\" data-start=\"3921\"\u003e\u003cstrong data-end=\"3955\" data-start=\"3921\"\u003eQ3: What does the kit include?\u003c\/strong\u003e\u003cbr data-end=\"3958\" data-start=\"3955\"\u003eIt includes the cylinder housing, internal piston, seal bore; reservoir and lines remain reusable.\u003c\/p\u003e\n\u003cp data-end=\"4244\" data-start=\"4058\"\u003e\u003cstrong data-end=\"4123\" data-start=\"4058\"\u003eQ4: Can this part fix rear brake sponginess or fluid leakage?\u003c\/strong\u003e\u003cbr data-end=\"4126\" data-start=\"4123\"\u003e✅ Yes—replacing worn master cylinder units with this OEM component restores proper lever feel and braking performance.\u003c\/p\u003e\n\u003cp data-end=\"4409\" data-start=\"4246\"\u003e\u003cstrong data-end=\"4293\" data-start=\"4246\"\u003eQ5: Is this an official Royal Enfield part?\u003c\/strong\u003e\u003cbr data-end=\"4296\" data-start=\"4293\"\u003e✅ Yes—listed in the Royal Enfield parts catalog and authorized reseller channels. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50276266770727,"sku":null,"price":1310.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/587400_master_cylinder_assembly.png?v=1757186576","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-587400-d-rear-master-cylinder-himalayan","provider":"UNDER THE HOOD","version":"1.0","type":"link"}