{"product_id":"exhaust-manifold-nut","title":"Exhaust Manifold Nut","description":"The Rein Automotive copper collar nut, with part number 11 72 1 437 202, is a specialized M7 (7mm) fastener for BMW exhaust manifolds. This OEM-sourced nut features an elliptical shape that deforms and locks onto the stud when tightened, providing a secure, self-retaining connection. This design effectively eliminates the need for a separate nylon locking thread, making it highly suitable for the demanding conditions of high-heat and high-vibration exhaust system applications.\n\nThis copper collar nut is specifically engineered for BMW engines that utilize a unique 7mm exhaust manifold stud. The engines that commonly use this nut include models with M52TU, M54, M56, N51, N52, S54, and S55 engines. The elliptical deformation technology ensures a vibration-resistant and heat-tolerant seal, crucial for maintaining exhaust integrity.\n\nThis nut is manufactured by the same supplier that BMW uses, ensuring OE-equivalent quality and fitment. It is a direct replacement for BMW part number 11 72 1 437 202 and is compatible with a wide range of BMW vehicles, including various models from the 1 Series (E82\/E88), 3 Series (E30, E36, E46, E90\/E91\/E92\/E93, F80), 4 Series (F82\/F83), 5 Series (E34, E39, E60\/E61), X3 (E83), X5 (E53, E70), Z3 (E36\/7\/E36\/8), and Z4 (E85\/E86, E89) lineups.","brand":"BMW","offers":[{"title":"Default Title","offer_id":52686761918776,"sku":"11 72 1 437 202","price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660178854.jpg?v=1784876431","url":"https:\/\/store.motormia.co\/products\/exhaust-manifold-nut","provider":"MOTORMIA","version":"1.0","type":"link"}