{"product_id":"dorman-904-842-vacuum-pump","title":"Dorman 904-842 Vacuum Pump","description":"\u003ch2\u003eOverview of Dorman Vacuum Pump 904-842 for BMW M2, M3, M4\u003c\/h2\u003e\u003cp\u003eThe Dorman 904-842 vacuum pump is designed specifically for BMW M2, M3, and M4 models, providing reliable vacuum pressure essential for emission control and brake system performance. This pump assembly includes a gasket and features an aluminum housing for durability and efficient heat dissipation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW M2, M3, and M4 models\u003c\/li\u003e\n\u003cli\u003ePart number 904-842 for precise identification\u003c\/li\u003e\n\u003cli\u003eAluminum housing material for lightweight strength\u003c\/li\u003e\n\u003cli\u003eIncludes gasket for proper sealing\u003c\/li\u003e\n\u003cli\u003eEquipped with a relief valve for pressure regulation\u003c\/li\u003e\n\u003cli\u003eBelt-driven vacuum pump with barbed connector\u003c\/li\u003e\n\u003cli\u003eInside diameter of 0.585 inches for inlet and connector\u003c\/li\u003e\n\u003cli\u003eNo pulley or mounting hardware included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 904-842 vacuum pump is engineered to maintain consistent vacuum pressure in BMW M2, M3, and M4 vehicles. Its aluminum housing ensures a robust yet lightweight construction, which helps in heat dissipation and long-term durability. The pump operates via a belt drive system and features a barbed vacuum pump connector with an inside diameter of 0.585 inches, matching OEM specifications for seamless integration. A relief valve is incorporated to prevent over-pressurization, enhancing system safety. This pump assembly comes with a gasket to ensure a secure and leak-free installation, although mounting hardware and pulley are not included.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores vacuum pressure for brake boosters to improve braking response\u003c\/li\u003e\n\u003cli\u003eSupports emission control systems by maintaining proper vacuum levels\u003c\/li\u003e\n\u003cli\u003eReplaces faulty or worn vacuum pumps causing engine performance issues\u003c\/li\u003e\n\u003cli\u003eEliminates vacuum leaks that can trigger check engine lights\u003c\/li\u003e\n\u003cli\u003ePrevents vacuum-related malfunctions in BMW M2, M3, and M4 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with BMW M2, M3, or M4 before installation\u003c\/li\u003e\n\u003cli\u003eUse the included gasket to prevent vacuum leaks during assembly\u003c\/li\u003e\n\u003cli\u003eVerify belt condition and tension on the drive system for optimal pump operation\u003c\/li\u003e\n\u003cli\u003eNote that pulley and mounting hardware are not included and may need to be reused or sourced separately\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications when securing the pump\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman vacuum pumps are manufactured to meet or exceed OEM standards for fit, form, and function. The 904-842 part undergoes rigorous quality control to ensure reliable performance in BMW M2, M3, and M4 vehicles. This product includes a gasket to support proper sealing and is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship under normal use.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44327444250805,"sku":"BKKY-904-842","price":712.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_904842_Fro.jpg?v=1775011880","url":"https:\/\/www.partcatalog.com\/products\/dorman-904-842-vacuum-pump","provider":"PartCatalog","version":"1.0","type":"link"}