{"product_id":"dorman-902-5121-engine-coolant-thermostat-housing","title":"Dorman 902-5121 Engine Coolant Thermostat Housing","description":"\u003ch2\u003eOverview of Dorman Engine Coolant Thermostat Housing 902-5121\u003c\/h2\u003e\u003cp\u003eThe Dorman 902-5121 engine coolant thermostat housing is designed for reliable cooling system performance in select BMW models. Crafted from durable metal with a natural finish, this thermostat housing ensures proper coolant flow and engine temperature regulation for vehicles like the BMW 325e, 325i, 325iX, 525i, and 528e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from sturdy metal material for durability\u003c\/li\u003e\n\u003cli\u003eNatural color finish matching OEM appearance\u003c\/li\u003e\n\u003cli\u003eOutlet port diameter of 1.467 inches for precise coolant flow\u003c\/li\u003e\n\u003cli\u003eHeight measures 2.625 inches for accurate fitment\u003c\/li\u003e\n\u003cli\u003eIncludes three mounting holes with diameters of 0.27 inches\u003c\/li\u003e\n\u003cli\u003eMultiple bolt hole center-to-center measurements: 2.02, 2.325, and 2.54 inches\u003c\/li\u003e\n\u003cli\u003eFlange thickness of 0.565 inches for secure sealing\u003c\/li\u003e\n\u003cli\u003eDoes not include gasket, bolts, O-rings, or thermostat\u003c\/li\u003e\n\u003cli\u003ePackage contains one thermostat housing unit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 902-5121 engine coolant thermostat housing is engineered to meet the specifications required by BMW vehicles such as the 325e, 325i, 325iX, 525i, and 528e. Its metal construction provides strength and resistance to heat and corrosion, essential for maintaining the integrity of the cooling system. The natural finish preserves the original equipment look, while the precise outlet port diameter of 1.467 inches ensures consistent coolant flow. The housing’s height of 2.625 inches and flange thickness of 0.565 inches are designed to fit securely and maintain a tight seal when installed with the appropriate gasket and hardware (not included). The three mounting holes with varied bolt hole center-to-center distances allow for proper alignment and secure attachment to the engine block.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Common Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 325e, 325i, 325iX, 525i, and 528e models\u003c\/li\u003e\n\u003cli\u003eUsed to house the engine coolant thermostat (thermostat not included)\u003c\/li\u003e\n\u003cli\u003eReplaces worn or damaged thermostat housings to prevent coolant leaks\u003c\/li\u003e\n\u003cli\u003eHelps maintain optimal engine operating temperature\u003c\/li\u003e\n\u003cli\u003eAddresses issues such as coolant leaks, overheating, and thermostat housing cracks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman 902-5121 thermostat housing, ensure the use of a compatible gasket or seal to prevent leaks, as this product does not include one. Verify bolt hole alignment using the provided center-to-center measurements (2.02, 2.325, and 2.54 inches) to ensure proper fitment. Use appropriate torque specifications for mounting bolts to avoid damage to the housing or engine block. Since bolts and O-rings are not included, source OEM or equivalent parts for installation. Inspect the thermostat separately and replace if necessary, as this housing does not come with a thermostat.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman manufactures the 902-5121 thermostat housing to meet or exceed OEM standards for fit, form, and function. The metal construction is designed for durability and resistance to typical engine bay conditions. While this product does not include a thermostat or mounting hardware, it is backed by Dorman’s quality control processes. Please refer to Dorman’s official warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":44327214448821,"sku":"BKKY-902-5121","price":29.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_9025121_Fro.jpg?v=1775011654","url":"https:\/\/www.partcatalog.com\/products\/dorman-902-5121-engine-coolant-thermostat-housing","provider":"PartCatalog","version":"1.0","type":"link"}