{"product_id":"king-engine-bearings-chrysler-dodge-gen-3-hemi-5-7l-6-1l-6-4l-crankshaft-main-bearing-set-set-of-5","title":"King SI Series Main Bearing Set Standard: Fits Chrysler\/Dodge Gen III HEMI 5.7L, 6.1L","description":"\u003ch1\u003eKing Engine Bearings Main Bearing Set\u003c\/h1\u003e\n\u003ch2\u003e2005–2025 Chrysler 300, Dodge Challenger, Dodge Charger, Dodge Magnum, Jeep Grand Cherokee, Ram 1500\/2500\/3500 Gen III HEMI 5.7L, 6.1L, 6.4L Engines\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart #:\u003c\/strong\u003e MB5840SI\u003c\/p\u003e\n\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe King Engine Bearings Main Bearing Set is precision-engineered for Chrysler and Dodge Gen III HEMI engines, including the 5.7L, 6.1L, and 6.4L variants found in a wide range of vehicles from 2005 through 2025. Designed to deliver reliable crankshaft support and smooth engine operation, this bearing set is ideal for engine rebuilds, upgrades, and routine maintenance. Whether you are a professional mechanic or an automotive enthusiast, King Engine Bearings provides the durability and precision necessary to maintain optimal engine health under both daily driving and high-performance conditions.\u003c\/p\u003e\n\u003cp\u003eBuilt to meet the demanding requirements of modern HEMI powerplants, these main bearings ensure consistent performance and longevity, helping to protect your investment and keep your engine running smoothly mile after mile.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003eKing Engine Bearings combines advanced materials and manufacturing expertise to produce main bearings that offer dependable performance and extended service life. Key features include:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBimetal construction with an aluminum-silicon alloy base for superior wear resistance and conformability\u003c\/li\u003e\n  \u003cli\u003ePrecision-machined to OEM specifications for exact fit and optimal oil clearance\u003c\/li\u003e\n  \u003cli\u003eSpecifically designed for Chrysler\/Dodge Gen III HEMI 5.7L, 6.1L, and 6.4L engines\u003c\/li\u003e\n  \u003cli\u003eEnhanced conformability to accommodate minor crankshaft surface imperfections\u003c\/li\u003e\n  \u003cli\u003eExcellent fatigue strength to withstand high loads and elevated RPMs\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant surface treatment for long-lasting durability\u003c\/li\u003e\n  \u003cli\u003eCompatible with both stock and performance engine builds\u003c\/li\u003e\n  \u003cli\u003eManufactured under strict quality control standards to ensure consistency and reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction \u0026amp; Design\u003c\/h3\u003e\n\u003cp\u003eThe King main bearings feature a robust bimetal design that pairs an aluminum-silicon alloy base layer with a steel backing. This combination delivers an optimal balance of strength, flexibility, and wear resistance essential for supporting the crankshaft under dynamic engine loads. The aluminum-silicon layer provides excellent conformability and embedability, allowing the bearing to adapt to minor crankshaft surface irregularities and trap contaminants without damage.\u003c\/p\u003e\n\u003cp\u003eThe steel backing ensures structural integrity and dimensional stability, preventing deformation during installation and operation. Precision manufacturing processes maintain tight tolerances and consistent thickness, critical for proper oil clearance and preventing premature bearing failure. This durable construction makes King Engine Bearings a trusted choice for both factory replacements and high-performance applications.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eInstallation of the King Engine Bearings main bearing set is straightforward for experienced mechanics and engine builders. These bearings are designed as direct replacements for the main bearings in Chrysler and Dodge Gen III HEMI 5.7L, 6.1L, and 6.4L engines, ensuring proper fitment without the need for modifications. To achieve optimal performance and longevity, it is essential to follow manufacturer torque specifications and use appropriate assembly lubricants during installation.\u003c\/p\u003e\n\u003cp\u003eBefore installation, always inspect crankshaft journals for wear or damage and measure bearing clearances with precision tools to confirm correct tolerances. Proper installation helps prevent premature bearing wear and maintains smooth engine operation across all driving conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete set of main bearings for Chrysler\/Dodge Gen III HEMI 5.7L, 6.1L, and 6.4L engines\u003c\/li\u003e\n  \u003cli\u003eUpper and lower bearing shells sized for precise crankshaft fitment\u003c\/li\u003e\n  \u003cli\u003ePackaging and installation instructions for easy identification and guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cp\u003eThis main bearing set is perfect for automotive enthusiasts, professional engine builders, and mechanics performing engine rebuilds or upgrades on Chrysler and Dodge Gen III HEMI engines. It suits a wide range of applications, from daily-driven vehicles to high-performance builds requiring reliable crankshaft support and enhanced durability. Whether restoring a classic HEMI or assembling a high-output engine, King Engine Bearings delivers the quality and precision needed for dependable operation and long-lasting performance.\u003c\/p\u003e","brand":"King Engine Bearings","offers":[{"title":"Default Title","offer_id":48084134133998,"sku":"MB5840SI","price":33.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0794\/1996\/5678\/files\/8526f13e0d266e529772600d8da335e5L.png?v=1780209953","url":"https:\/\/www.ironridgeoffroad.com\/products\/king-engine-bearings-chrysler-dodge-gen-3-hemi-5-7l-6-1l-6-4l-crankshaft-main-bearing-set-set-of-5","provider":"Iron Ridge Offroad","version":"1.0","type":"link"}