{"product_id":"mmx-performance-bmw-s55-n55-one-piece-crank-hub-upgrade-kit","title":"MMX Performance BMW S55 \/ N55 One-Piece Crank Hub Upgrade Kit","description":"\u003cp\u003eThe MMX Performance BMW S55 \/ N55 One-Piece Crank Hub Upgrade Kit is a precision-engineered solution designed to permanently eliminate one of the most well-documented failure points in BMW’s S55 and N55 engines. The factory three-piece crank hub relies on friction surfaces that can slip under load, leading to timing misalignment and, in severe cases, catastrophic engine damage.\u003c\/p\u003e\n\n\u003cp\u003eThe MMX one-piece crank hub upgrade replaces the OE multi-piece design with a fully integrated billet construction, eliminating the possibility of internal slippage. By removing the reliance on friction-based engagement, this system ensures consistent crankshaft timing and significantly improves long-term engine reliability under both factory and high-performance conditions.\u003c\/p\u003e\n\n\u003cp\u003eManufactured from billet EN36 steel and heat-treated with a 0.75mm case hardening, the MMX crank hub delivers exceptional strength, wear resistance, and durability. The kit includes a new crank bolt to ensure proper installation and clamping force, providing a complete and robust solution compared to the factory setup.\u003c\/p\u003e\n\n\u003cp\u003eFor enhanced security, the kit can be configured with an optional MMX capture plate. This additional component prevents crank bolt loosening caused by engine harmonics or vibration by mechanically locking the bolt in place, offering an extra layer of protection for tuned or aggressively driven vehicles.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for both stock and modified engines, the MMX Performance BMW One-Piece Crank Hub Upgrade Kit is a proven reliability upgrade that eliminates risk at the source, providing confidence for daily driving, track use, and future performance builds.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMMX Performance one-piece crank hub upgrade kit for BMW S55 and N55 engines\u003c\/li\u003e\n\u003cli\u003eEliminates factory three-piece friction-based hub design\u003c\/li\u003e\n\u003cli\u003ePrevents crank hub slip and timing misalignment\u003c\/li\u003e\n\u003cli\u003eMachined from billet EN36 steel with 0.75mm case hardening\u003c\/li\u003e\n\u003cli\u003eHigh-strength construction for extreme durability\u003c\/li\u003e\n\u003cli\u003eIncludes new crank bolt for proper installation\u003c\/li\u003e\n\u003cli\u003eOptional capture plate available for additional security\u003c\/li\u003e\n\u003cli\u003eDesigned for stock, tuned, and high-performance applications\u003c\/li\u003e\n\u003cli\u003eDirect-fit upgrade with no internal friction plates\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eVehicle Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m3-f80\" target=\"_blank\"\u003eBMW F80 M3\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/4-series-f32-f33\" target=\"_blank\"\u003eBMW F82 \/ F83 M4\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m2-f87\" target=\"_blank\"\u003eBMW F87 M2\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/m2-competition-f87\" target=\"_blank\"\u003eBMW F87 M2 Competition \/ CS\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/2-series-f22-f23\" target=\"_blank\"\u003eBMW F22 \/ F23 2 Series\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/3-series-f30-f31\" target=\"_blank\"\u003eBMW F30 \/ F31 3 Series\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/collections\/4-series-f32-f33\" target=\"_blank\"\u003eBMW F32 \/ F33 4 Series\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Products\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/ind-distribution.com\/products\/mmr-performance-bmw-s55-n55-one-piece-crank-hub-upgrade-kit-4-pin?pr_prod_strat=pinned\u0026amp;pr_rec_id=64f95fee2\u0026amp;pr_rec_pid=7402278650052\u0026amp;pr_ref_pid=7293534994628\u0026amp;pr_seq=uniform\" target=\"_blank\"\u003eMMX Performance BMW S55 \/ N55 One-Piece High HP Crank Hub Upgrade Kit – 4-Pin\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSKU: MMR20-1001\u003c\/li\u003e\n  \u003cli\u003eOptional capture plate available for additional crank bolt security\u003c\/li\u003e\n  \u003cli\u003eRecommended for both stock and tuned applications\u003c\/li\u003e\n  \u003cli\u003eFor high horsepower builds, consider upgraded 4-pin crank hub option\u003c\/li\u003e\n  \u003cli\u003eProfessional installation required\u003c\/li\u003e\n  \u003cli\u003eIncludes a 1-year manufacturer warranty against defects in materials and workmanship\u003c\/li\u003e\n  \u003cli\u003eDesigned and tested in the United Kingdom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IND Distribution","offers":[{"title":"Without Capture Plate (MMR20-1001)","offer_id":47411567624386,"sku":"MMR20-1001","price":730.46,"currency_code":"USD","in_stock":true},{"title":"With Capture Plate (MMR20-1003FK)","offer_id":47411567657154,"sku":"MMR20-1003FK","price":849.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/0784\/7874\/files\/mmx-bmw-s55-n55-one-piece-crank-hub-upgrade-kit-white-background.jpg?v=1776275606","url":"https:\/\/grocerygetterperformance.com\/products\/mmx-performance-bmw-s55-n55-one-piece-crank-hub-upgrade-kit","provider":"Grocery Getter Performance","version":"1.0","type":"link"}