{"product_id":"5150-bmw-crankshaft-bolt-11-21-1-720-633","title":"BMW Crankshaft Bolt 11-21-1-720-633","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBMW part number \u003c\/span\u003e\u003cstrong\u003e11-21-1-720-633\u003c\/strong\u003e\u003cspan\u003e is a \u003c\/span\u003e\u003cstrong\u003ecrankshaft bolt for BMW M50 \/ M52 \/ S50 \/ S52 and M54 engines\u003c\/strong\u003e\u003cspan\u003e. This bolt is used to secure the crankshaft pulley or harmonic balancer to the crankshaft, ensuring proper alignment and rotation of the crankshaft and accessory drive components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhen and Why to Replace BMW Part #11-21-1-720-633:\u003c\/h3\u003e\n\u003ch3\u003e1. \u003cstrong\u003eRoutine Maintenance or Engine Overhaul\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDuring a major engine rebuild or overhaul, all critical fasteners should be replaced to ensure the engine operates reliably, as bolts can stretch or weaken over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e2. \u003cstrong\u003eSigns of Wear or Damage\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVisible wear, corrosion, or thread damage on the bolt.\u003c\/li\u003e\n\u003cli\u003eLoss of torque retention due to stretching or over-tightening during previous installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e3. \u003cstrong\u003eUpgraded or High-Performance Applications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCustomers modifying their engines for forced induction or high-performance use may replace stock crankshaft bolts with \u003cstrong\u003eupgraded fasteners\u003c\/strong\u003e for better strength and reliability under increased stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e4. \u003cstrong\u003eCrankshaft Pulley or Harmonic Balancer Replacement\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacing the harmonic balancer, crankshaft pulley, or timing gear often necessitates removing the crankshaft bolt. Since some bolts are \u003cstrong\u003etorque-to-yield (TTY)\u003c\/strong\u003e and stretch upon installation, they must be replaced rather than reused.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e5. \u003cstrong\u003ePreventative Measures\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnthusiasts and professionals may replace crankshaft bolts as a precautionary measure to avoid potential failures that could lead to catastrophic engine damage, especially in older or high-mileage engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW M50 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1990-1995     E36     320i \/ 325i \/ 325is\u003cbr\u003e1994-1996     E35\/E36     318ti\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1990-1996     E34     520i \/ 525i\u003cbr\u003e1991-1996     E34 Touring     520i \/ 525i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1995     E36\/E37     Z3 2.0i \/ 2.5i\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW M52 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1994-1999     E36     320i \/ 323i \/ 323is \/ 328i \/ 328is\u003cbr\u003e1997-2000     E35\/E36     318ti \/ 323ti\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1998     E39     520i \/ 523i \/ 528i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1998     E38     728i \/ 728iL\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1999     E36\/E37\/E38     Z3 2.0i \/ 2.2i \/ 2.8i\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S50 US Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1994-1995     E36     M3\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S52 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1999     E36     M3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1998-2000     E36\/E37\/E38     Z3M\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW M54 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2006     E46     320i \/ 320Ci\u003cbr\u003e2000-2006     E46     325i \/ 325xi \/ 325Ci\u003cbr\u003e2000-2006     E46     330i \/ 330xi \/ 330Ci\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2003     E39     520i [Europe]\u003cbr\u003e2000-2003     E39     525i \u003cbr\u003e2000-2003     E39     530i\u003cbr\u003e\u003cbr\u003e2003-2005     E60\/E61     525i\u003cbr\u003e2003-2005     E60\/E61     530i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2001     E38     730i \/ 730Li [Europe]\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2002     Z3     2.2i \/ 2.5i \/ 3.0i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2002-2005     Z4     2.5i \/ 3.0i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2003-2006     E83     X3 2.5i \/ 3.0i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2006     E53     X5 3.0i\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eSupplied in Egypt by iCode — the official 5150 AutoSport dealer.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003ePrice shown in EGP is an estimate at today's exchange rate. Final price confirmed after shipping and customs fees.\u003c\/em\u003e\u003c\/p\u003e","brand":"BMW","offers":[{"title":"Default Title","offer_id":68329836871879,"sku":"BMW-","price":1890.51,"currency_code":"EGP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/2108\/3847\/files\/11-21-1-720-633-Crankshaft-Bolt-for-BMW-M50-M52-S50-S52-M54-Engines.webp?v=1794334277","url":"https:\/\/icode-egypt.com\/products\/5150-bmw-crankshaft-bolt-11-21-1-720-633","provider":"iCode - EG","version":"1.0","type":"link"}