{"product_id":"mmx-bmw-s58-billet-oil-filer-cap","title":"MMR S58 Oil Filler Cap","description":"\u003cbody\u003e\n  \u003cdiv\u003e\n    \u003ch2\u003ePremium alloy engine oil cap upgrade for BMW S58 and B48E powerplants\u003c\/h2\u003e\n    \u003cp\u003e\n      Give your engine bay a purposeful, high-quality finish with this UK‑engineered solid aluminium replacement oil cap. Precision machined from a single piece of billet alloy, it replaces the original plastic lid for a secure, factory‑style fit. This is a true direct swap for the stock component, not a stick‑on cover.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      We run this cap on our own builds and our customers consistently praise the fit, finish and confidence‑inspiring feel. It looks the part in any performance bay and delivers the premium touch you expect from a proper motorsport‑inspired accessory.\n    \u003c\/p\u003e\n\n    \u003cul\u003e\n      \u003cli\u003eSolid billet aluminium construction for a premium look and feel\u003c\/li\u003e\n      \u003cli\u003eDirect replacement for the factory oil cap, no adhesives\u003c\/li\u003e\n      \u003cli\u003eUK designed for precise, reliable engagement\u003c\/li\u003e\n      \u003cli\u003eIdeal engine bay dress‑up for tuned and standard cars alike\u003c\/li\u003e\n      \u003cli\u003eQuick, simple swap with an OE‑style interface\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eOE reference\u003c\/h3\u003e\n    \u003cp\u003e\n      Replaces BMW OE part number: \u003cstrong\u003e11 12 8 654 637\u003c\/strong\u003e.\u003cbr\u003e\n      Please confirm this number on the underside of your existing oil cap before ordering.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eEngine and model guidance\u003c\/h3\u003e\n    \u003cp\u003e\n      Suits BMW \u003cstrong\u003eS58\u003c\/strong\u003e and \u003cstrong\u003eB48E\u003c\/strong\u003e engines where the original cap carries the OE reference above. Common S58 applications include G80 M3, G82\/G83 M4 and F97 X3M \/ F98 X4M. Selected B48E models also apply when the OE number matches.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eWhy enthusiasts choose this upgrade\u003c\/h3\u003e\n    \u003cp\u003e\n      Looking for a BMW engine oil cap upgrade, alloy oil filler lid, rocker cover oil cap, or performance oil cap for G80 M3, G82 M4, G83 M4 Convertible, X3M, X4M or B48E variants? This machined aluminium engine oil lid delivers the clean motorsport aesthetic and dependable, OE‑like functionality enthusiasts want. It’s the ideal BMW oil filler replacement for owners seeking a high‑quality metal oil cap, BMW M car engine cap, or a straightforward engine bay dress‑up part that installs in minutes.\n    \u003c\/p\u003e\n\n    \u003ch3\u003eFitting and support\u003c\/h3\u003e\n    \u003cp\u003e\n      Installation is a quick, like‑for‑like swap. Prefer professional fitting? Book in with MJ Modifications in Warwickshire. Email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e for a quote and availability.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Search terms covered: BMW engine oil cap upgrade, billet aluminium oil filler cover, BMW G80 G82 G83 oil cap, X3M X4M oil cap replacement, S58 engine oil lid, B48E oil filler cap, performance engine cap UK, BMW alloy oil cap direct replacement.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/body\u003e","brand":"Champion Rainbow Co. Ltd (Previously Golden Bloom)","offers":[{"title":"Default Title","offer_id":56496627122562,"sku":"MMR03-1601","price":81.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/Artboard1_e1ded2cb-bdad-4e97-b041-3804b50b3e8b.png?v=1774093629","url":"https:\/\/mjmodifications.co.uk\/products\/mmx-bmw-s58-billet-oil-filer-cap","provider":"MJ Modifications","version":"1.0","type":"link"}