{"product_id":"king-oe-replacement-main-bearings-set-plus-0-50mm-na-nb-miata-90-05","title":"King OE-Replacement Main Bearings Set +0.50mm - NA\/NB Miata (90-05)","description":"\u003cp data-end=\"794\" data-start=\"391\"\u003eRebuild your engine with confidence using the \u003cstrong data-end=\"474\" data-start=\"437\"\u003eKing MB5304AM0.5 Main Bearing Set\u003c\/strong\u003e, engineered for \u003cstrong data-end=\"563\" data-start=\"491\"\u003eMazda and Kia DOHC 16-valve, SOHC 16-valve, and SOHC 8-valve engines\u003c\/strong\u003e. Designed with precision and durability in mind, this \u003cstrong data-end=\"649\" data-start=\"618\"\u003e+0.5mm oversize bearing set\u003c\/strong\u003e is the perfect solution for engines that have undergone machining, line boring, or require oversized bearings for proper crankshaft clearance.\u003c\/p\u003e\n\u003cp data-end=\"1225\" data-start=\"796\"\u003eKing main bearings are trusted worldwide for their \u003cstrong data-end=\"884\" data-start=\"847\"\u003eOEM-level fitment and reliability\u003c\/strong\u003e. Manufactured to exacting standards, the MB5304AM0.5 set ensures superior oil clearance, excellent load distribution, and long-lasting wear resistance. Whether you’re rebuilding a stock daily driver, maintaining a track-prepped Miata, or restoring a Mazda B-series engine, King delivers the durability and consistency your build requires.\u003c\/p\u003e\n\u003cp data-end=\"1595\" data-start=\"1227\"\u003eCrafted from premium bearing materials, this set provides optimal balance between strength and conformability—helping to protect the crankshaft under heavy loads and extended RPM operation. Backed by King’s reputation for \u003cstrong data-end=\"1508\" data-start=\"1449\"\u003eprecision engineering and high-performance applications\u003c\/strong\u003e, these main bearings are equally at home in factory rebuilds and high-output builds.\u003c\/p\u003e\n\u003cp data-end=\"1616\" data-start=\"1597\"\u003e\u003cstrong data-end=\"1614\" data-start=\"1597\"\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1871\" data-start=\"1617\"\u003e\n\u003cli data-end=\"1671\" data-start=\"1617\"\u003e\n\u003cp data-end=\"1671\" data-start=\"1619\"\u003eFits Kia\/Mazda DOHC 16V, SOHC 16V, SOHC 8V engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1725\" data-start=\"1672\"\u003e\n\u003cp data-end=\"1725\" data-start=\"1674\"\u003e+0.5mm oversize for rebuilt or line-bored engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1773\" data-start=\"1726\"\u003e\n\u003cp data-end=\"1773\" data-start=\"1728\"\u003eOEM-grade reliability and precision fitment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1823\" data-start=\"1774\"\u003e\n\u003cp data-end=\"1823\" data-start=\"1776\"\u003eExcellent load distribution and oil clearance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1871\" data-start=\"1824\"\u003e\n\u003cp data-end=\"1871\" data-start=\"1826\"\u003eDurable materials for long-term performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1997\" data-start=\"1873\"\u003eUpgrade your rebuild with the \u003cstrong data-end=\"1940\" data-start=\"1903\"\u003eKing MB5304AM0.5 Main Bearing Set\u003c\/strong\u003e—a proven choice for both street and race applications.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eThis Part Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003e10th Anniversary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1994-1997,1999-2005\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2005\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eLS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1994-1997\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eM Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2005\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eMazdaspeed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2003\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eSE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eShinsen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMiata\u003c\/td\u003e\n\u003ctd\u003eSTO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003eMazda\u003c\/td\u003e\n\u003ctd\u003eMX-3\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"King Engine Bearings","offers":[{"title":"Default Title","offer_id":46416075489505,"sku":"KINGMB5304AM0.5","price":47.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0620\/6849\/0465\/files\/94-05-mazda-miata-main-bearing-set-05mm-king-mb5304am05king-engine-bearingskingmb5304am05-8386894.jpg?v=1760737911","url":"https:\/\/www.garage-56.com\/products\/king-oe-replacement-main-bearings-set-plus-0-50mm-na-nb-miata-90-05","provider":"Garage 56 Engineering ","version":"1.0","type":"link"}