{"product_id":"sealed-power-4261m-engine-crankshaft-main-bearing-set","title":"Sealed Power 4261M Engine Crankshaft Main Bearing Set","description":"\u003ch2\u003eOverview of Sealed Power Engine Crankshaft Main Bearing Set 4261M\u003c\/h2\u003e\u003cp\u003eThe Sealed Power 4261M engine crankshaft main bearing set is designed as an OE replacement for Ford and Mercury vehicles from 1964 to 1975. This main set supports engines with displacements of 390, 427, and 428 cubic inches, providing reliable performance for classic models like the Mustang and F-150.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ford and Mercury vehicles including Mustang, F-100, Cougar, and Thunderbird\u003c\/li\u003e\n\u003cli\u003eEngine displacement fitment: 390, 427, and 428 cubic inches\u003c\/li\u003e\n\u003cli\u003eManufactured from overplated copper-lead alloy for durability\u003c\/li\u003e\n\u003cli\u003eAvailable in standard and multiple undersizes (Std, 1-10-60)\u003c\/li\u003e\n\u003cli\u003eComplete main bearing set for crankshaft support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Sealed Power 4261M main bearing set is engineered to meet original equipment specifications for Ford and Mercury engines within the 390, 427, and 428 engine families. Constructed from an overplated copper-lead alloy, these bearings offer a balance of strength and wear resistance essential for maintaining crankshaft stability. The set includes a range of sizes from standard to 0.60mm undersize, allowing precise fitment during engine rebuilds or repairs. This main set is suitable for a variety of classic vehicles such as the Ford Mustang, Mercury Cougar, and Ford F-150, ensuring compatibility with popular models from the 1964-1975 production years.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or damaged main bearings in 390, 427, and 428 Ford engines\u003c\/li\u003e\n\u003cli\u003eAddresses crankshaft end play and bearing clearance issues\u003c\/li\u003e\n\u003cli\u003eRestores proper oil clearance to prevent engine knocking and wear\u003c\/li\u003e\n\u003cli\u003eSupports engine rebuilds for classic Ford and Mercury vehicles\u003c\/li\u003e\n\u003cli\u003eHelps reduce vibration and improve engine smoothness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Sealed Power 4261M main bearing set, ensure the crankshaft journals are clean and free of debris. Measure journal diameters carefully to select the correct bearing size from the available standard and undersize options. Proper torque specifications should be followed to avoid bearing distortion. It is recommended to check oil clearances with plastigage or a micrometer to confirm correct fitment before final assembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eSealed Power bearings are manufactured to meet strict OEM standards, ensuring consistent quality and durability. The 4261M main bearing set undergoes rigorous testing to maintain performance under demanding engine conditions. While specific warranty details are not provided, Sealed Power products typically come with a limited warranty against manufacturing defects, supporting reliability for engine rebuild projects.\u003c\/p\u003e","brand":"Sealed Power","offers":[{"title":"Default Title","offer_id":52170096509109,"sku":"BDBR-4261M","price":127.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SE_4261M_Ang.jpg?v=1775590826","url":"https:\/\/www.partcatalog.com\/products\/sealed-power-4261m-engine-crankshaft-main-bearing-set","provider":"PartCatalog","version":"1.0","type":"link"}