{"product_id":"sealed-power-6689ma-engine-crankshaft-main-bearing-set","title":"Sealed Power 6689MA Engine Crankshaft Main Bearing Set","description":"\u003ch2\u003eOverview of Sealed Power Engine Crankshaft Main Bearing Set 6689MA\u003c\/h2\u003e\u003cp\u003eThe Sealed Power 6689MA engine crankshaft main bearing set is designed for reliable performance in a range of GM and Jeep vehicles. Constructed from A-series aluminum, this standard size full set provides essential durability and precision for engine rebuilds and repairs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFull set of main bearings for complete engine crankshaft support\u003c\/li\u003e\n\u003cli\u003eMade from A-series aluminum for strength and wear resistance\u003c\/li\u003e\n\u003cli\u003eStandard size bearings suitable for OEM specifications\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple makes including Buick, Chevrolet, GMC, Jeep, Oldsmobile, and Pontiac\u003c\/li\u003e\n\u003cli\u003ePart number 6689MA ensures correct fitment and quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Sealed Power engine crankshaft main bearing set (part number 6689MA) features A-series aluminum construction, which offers a balance of durability and heat dissipation critical for engine longevity. The standard size bearings are engineered to meet factory specifications, making them suitable for a variety of engine rebuilds. This full set is compatible with numerous GM and Jeep models such as the Chevrolet Camaro, GMC S10, Buick Century, Jeep CJ5 and CJ7, Pontiac Firebird, and Oldsmobile Cutlass Ciera, among others. Using this bearing set helps maintain proper crankshaft alignment and reduces friction, which is vital for engine performance and reliability.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBuick Century, Skylark, and Regal models\u003c\/li\u003e\n\u003cli\u003eChevrolet Camaro, Astro, Lumina, and S10 Blazer\u003c\/li\u003e\n\u003cli\u003eGMC S10, S15, and Sonoma trucks\u003c\/li\u003e\n\u003cli\u003eJeep CJ5, CJ7, Scrambler, and Cherokee\u003c\/li\u003e\n\u003cli\u003eOldsmobile Cutlass Ciera and Cruiser\u003c\/li\u003e\n\u003cli\u003ePontiac Firebird, Fiero, Sunbird, and Phoenix\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Bearing Set\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive crankshaft wear due to bearing failure\u003c\/li\u003e\n\u003cli\u003eEngine knocking caused by worn main bearings\u003c\/li\u003e\n\u003cli\u003eOil pressure loss related to bearing clearance problems\u003c\/li\u003e\n\u003cli\u003eReduced engine performance from improper crankshaft support\u003c\/li\u003e\n\u003cli\u003eOverheating and premature bearing wear in high-stress conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure engine block and crankshaft surfaces are clean and free of debris before installation\u003c\/li\u003e\n\u003cli\u003eVerify bearing clearances with proper measuring tools to meet OEM specifications\u003c\/li\u003e\n\u003cli\u003eUse assembly lubricant on bearing surfaces during installation to prevent initial wear\u003c\/li\u003e\n\u003cli\u003eFollow torque specifications for main bearing caps to avoid distortion\u003c\/li\u003e\n\u003cli\u003eInspect crankshaft journals for scoring or damage prior to bearing installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eSealed Power maintains strict quality control standards for the 6689MA bearing set, ensuring consistent material properties and dimensional accuracy. The use of A-series aluminum material complies with industry standards for engine components. While specific warranty details may vary, Sealed Power products typically come with a limited warranty against manufacturing defects. Always consult product documentation or authorized sources for warranty terms.\u003c\/p\u003e","brand":"Sealed Power","offers":[{"title":"Default Title","offer_id":44495995633845,"sku":"BDBR-6689MA","price":91.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SE_6689MA_Ang_7f640902-18c1-48e4-91eb-b0323afb4850.jpg?v=1775021147","url":"https:\/\/www.partcatalog.com\/products\/sealed-power-6689ma-engine-crankshaft-main-bearing-set","provider":"PartCatalog","version":"1.0","type":"link"}