{"product_id":"sealed-power-4125m-engine-crankshaft-main-bearing-set","title":"Sealed Power 4125M Engine Crankshaft Main Bearing Set","description":"\u003ch2\u003eOverview of Sealed Power Engine Crankshaft Main Bearing Set 4125M\u003c\/h2\u003e\u003cp\u003eThe Sealed Power 4125M Engine Crankshaft Main Bearing Set is designed as an OE replacement for Ford small block engines with 289 and 302 cubic inch displacement. This main set is engineered to meet the specifications required for reliable engine performance in various Ford, Lincoln, and Mercury vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOE replacement main bearing set for Ford small block engines\u003c\/li\u003e\n\u003cli\u003eCompatible with 289 and 302 cubic inch displacement engines\u003c\/li\u003e\n\u003cli\u003eConstructed from overplated copper-lead alloy for durability\u003c\/li\u003e\n\u003cli\u003eIncludes standard and undersized bearings: Std, -1, -10, -20, -30, -40\u003c\/li\u003e\n\u003cli\u003eFits a wide range of Ford, Lincoln, and Mercury models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description and Attributes\u003c\/h2\u003e\u003cp\u003eThe Sealed Power 4125M main bearing set is manufactured specifically for Ford small block engines, including the 289 and 302 cubic inch displacement variants. Made from an overplated copper-lead alloy, these bearings provide a balance of strength and wear resistance essential for maintaining proper crankshaft alignment and smooth engine operation. The set includes multiple size options—standard and undersized increments (-1 to -40)—allowing precise fitment during engine rebuilds or repairs. This main set is compatible with a broad range of vehicles such as the Ford Mustang, F-150, Bronco, Lincoln Continental, Mercury Cougar, and several Econoline models, ensuring versatility across Ford’s small block engine lineup.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFord Mustang (289, 302 engines)\u003c\/li\u003e\n\u003cli\u003eFord F-100, F-150, F-250, F-350 trucks\u003c\/li\u003e\n\u003cli\u003eFord Bronco and Explorer\u003c\/li\u003e\n\u003cli\u003eLincoln Continental, Mark VI, Mark VII\u003c\/li\u003e\n\u003cli\u003eMercury Cougar, Grand Marquis, Marquis, Villager\u003c\/li\u003e\n\u003cli\u003eFord Econoline series (E-100, E-150, E-250, E-350 and Club Wagon variants)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Engine Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive crankshaft end play or bearing clearance\u003c\/li\u003e\n\u003cli\u003eEngine knocking due to worn main bearings\u003c\/li\u003e\n\u003cli\u003eOil pressure loss related to bearing wear\u003c\/li\u003e\n\u003cli\u003eCrankshaft damage prevention during rebuilds\u003c\/li\u003e\n\u003cli\u003eRestoring proper bearing fit after machining or wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify engine displacement and bearing size before installation\u003c\/li\u003e\n\u003cli\u003eMeasure crankshaft journals to select correct bearing size from the set\u003c\/li\u003e\n\u003cli\u003eClean all bearing surfaces and lubricate bearings prior to assembly\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer torque specifications for main bearing caps\u003c\/li\u003e\n\u003cli\u003eInspect crankshaft journals for wear or damage before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eSealed Power manufactures the 4125M main bearing set to meet OEM standards for durability and performance. The overplated copper-lead alloy construction ensures consistent wear resistance and reliable engine operation. While specific warranty details may vary, Sealed Power products typically come with a limited warranty against manufacturing defects, providing confidence in the product’s quality and longevity.\u003c\/p\u003e","brand":"Sealed Power","offers":[{"title":"Default Title","offer_id":44495971745973,"sku":"BDBR-4125M","price":62.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SE_4125M_Ang_6a5f54c4-f416-480b-93a9-8dd9f0500e4f.jpg?v=1775021131","url":"https:\/\/www.partcatalog.com\/products\/sealed-power-4125m-engine-crankshaft-main-bearing-set","provider":"PartCatalog","version":"1.0","type":"link"}