{"product_id":"si-series-010-undersize-main-bearings","title":"SI-Series .010\" Undersize Main Bearings","description":"The King Racing MB5293SI 010 is a set of .010\" undersize main bearings engineered for LS and LT-based engines manufactured between 1997 and 2024. These direct replacement bearings are specifically designed for use with a .010\" turned crankshaft, making them suitable for stock replacement and mild performance builds.\n\nConstructed from a bi-metal aluminum material with 2.5-3% silicon, King's SI-Series main bearings offer enhanced durability and performance. They feature an improved surface finish that helps reduce microscopic peaks on nodular cast iron crankshafts. Additionally, these bearings provide optimized oil clearance, which contributes to reduced wear, extended engine life, and a quieter, smoother operation by minimizing noise, vibration, and excess oil flow.\n\nIt is important to note that these bearings are not for use on Gen V auto Start\/Stop engines; for those applications, the MB5293MC coated bearings are recommended. Furthermore, these bearings are intended for use with stock, turned crankshafts only and are not compatible with aftermarket crankshafts. For aftermarket crankshaft applications, King recommends their HP or XP series bearings.\n\nKing, like most bearing manufacturers, no longer includes a locating tab on the thrust bearing for this part number. This change allows for broader application compatibility, as the tab's primary function was to orient the bearing in the block and cap saddles, a role the thrust side walls fulfill for the thrust bearing.","brand":"King Racing","offers":[{"title":"Default Title","offer_id":52686467498296,"sku":"MB5293SI 010","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/657804618.jpg?v=1784874134","url":"https:\/\/store.motormia.co\/products\/si-series-010-undersize-main-bearings","provider":"MOTORMIA","version":"1.0","type":"link"}