{"product_id":"king-oe-replacement-main-bearings-set-plus-0-25mm-na-nb-miata-90-05","title":"King OE-Replacement Main Bearings Set +0.25mm - NA\/NB Miata (90-05)","description":"\u003cp data-start=\"401\" data-end=\"783\"\u003eEnsure strength and reliability in your engine rebuild with the \u003cstrong data-start=\"465\" data-end=\"503\"\u003eKing MB5304AM0.25 Main Bearing Set\u003c\/strong\u003e, designed for \u003cstrong data-start=\"518\" data-end=\"590\"\u003eKia and Mazda DOHC 16-valve, SOHC 16-valve, and SOHC 8-valve engines\u003c\/strong\u003e. Built for precision and performance, this \u003cstrong data-start=\"634\" data-end=\"666\"\u003e+0.25mm oversize bearing set\u003c\/strong\u003e is the perfect solution for engines that have been line-bored or require oversized main bearings during a rebuild.\u003c\/p\u003e\n\u003cp data-start=\"785\" data-end=\"1152\"\u003eManufactured to exacting standards, King main bearings provide \u003cstrong data-start=\"848\" data-end=\"869\"\u003eOEM-level fitment\u003c\/strong\u003e while delivering the durability needed for performance driving. The MB5304AM0.25 set features premium bearing materials that ensure superior load distribution, excellent wear resistance, and consistent oil clearance—protecting your crankshaft from damage under extreme conditions.\u003c\/p\u003e\n\u003cp data-start=\"1154\" data-end=\"1469\"\u003eIdeal for both \u003cstrong data-start=\"1169\" data-end=\"1212\"\u003estreet enthusiasts and track-day racers\u003c\/strong\u003e, this bearing set offers the perfect balance between strength and conformability. Whether you’re restoring a Mazda daily driver, rebuilding a high-performance B-series engine, or preparing a Miata for racing, King Bearings delivers unmatched reliability.\u003c\/p\u003e\n\u003cp data-start=\"1471\" data-end=\"1490\"\u003e\u003cstrong data-start=\"1471\" data-end=\"1488\"\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1491\" data-end=\"1779\"\u003e\n\u003cli data-start=\"1491\" data-end=\"1549\"\u003e\n\u003cp data-start=\"1493\" data-end=\"1549\"\u003eFits Kia\/Mazda DOHC 16V, SOHC 16V, and SOHC 8V engines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1550\" data-end=\"1610\"\u003e\n\u003cp data-start=\"1552\" data-end=\"1610\"\u003e\u003cstrong data-start=\"1552\" data-end=\"1572\"\u003e+0.25mm oversize\u003c\/strong\u003e for rebuilt\/line-bored applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1611\" data-end=\"1665\"\u003e\n\u003cp data-start=\"1613\" data-end=\"1665\"\u003ePremium bearing materials for long-term durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1666\" data-end=\"1715\"\u003e\n\u003cp data-start=\"1668\" data-end=\"1715\"\u003eExcellent load distribution and oil clearance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1716\" data-end=\"1779\"\u003e\n\u003cp data-start=\"1718\" data-end=\"1779\"\u003eTrusted King Bearings quality, proven in performance builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1781\" data-end=\"1930\"\u003eProtect your investment and build with confidence—choose the \u003cstrong data-start=\"1842\" data-end=\"1880\"\u003eKing MB5304AM0.25 Main Bearing Set\u003c\/strong\u003e for lasting performance on the street or track.\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\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"King Engine Bearings","offers":[{"title":"Default Title","offer_id":46416075423969,"sku":"KINGMB5304AM0.25","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-025mm-king-mb5304am025king-engine-bearingskingmb5304am025-1769651.jpg?v=1760737832","url":"https:\/\/www.garage-56.com\/products\/king-oe-replacement-main-bearings-set-plus-0-25mm-na-nb-miata-90-05","provider":"Garage 56 Engineering ","version":"1.0","type":"link"}