{"product_id":"king-bmw-n57-d30-a-b-c-n57n-n57s-size-0-5mm-main-bearing-set","title":"King BMW N57 D30 A\/B\/C \/ N57N \/ N57S (Size +0.5mm) Main Bearing Set","description":"\u003cp\u003eKing Engine Bearings MB7781SM0.5 is the exact main bearings set shown in this listing. Select it by engine application, bearing position, measured crankshaft journal and housing bore, size designation, material or coating, and manufacturer part number. Engine machining measurements must be confirmed before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExact King Engine Bearings part number MB7781SM0.5\u003c\/li\u003e\n\u003cli\u003ePurpose-built main bearings configuration\u003c\/li\u003e\n\u003cli\u003eSize designation: +0.5mm\u003c\/li\u003e\n\u003cli\u003eBearing construction identified by exact part number\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFitment Status\u003c\/th\u003e\n\u003ctd\u003eVehicle verification required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRequired Check\u003c\/th\u003e\n\u003ctd\u003eConfirm exact King part number MB7781SM0.5, engine code, displacement, crankshaft journal dimensions, housing bore, bearing position, thrust location, and required clearance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eKing Engine Bearings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eMB7781SM0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eMain Bearings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003ctd\u003e+0.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish or Coating\u003c\/th\u003e\n\u003ctd\u003eBearing construction identified by exact part number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOne new King Engine Bearings main bearings set in the exact size and configuration identified by part number MB7781SM0.5. Gaskets, fasteners, assembly lubricant, measuring tools, and machine work are not included unless expressly listed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout King Engine Bearings\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eKing has specialized in engine bearings since 1960 and produces OE replacement and performance main, connecting rod, camshaft, and thrust bearing solutions. Correct selection depends on exact engine application, journal and housing measurements, material, coating, clearance target, and part-number suffix.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelated King Engine Bearings Products\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/collections\/king-engine-bearings\"\u003eShop all King Engine Bearings products\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/king-bmw-n57-d30-a-b-c-n57n-n57s-size-0-25mm-main-bearing-set\"\u003eKing BMW N57 D30 A\/B\/C \/ N57N \/ N57S (Size +0.25mm) Main Bearing Set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/king-13-15-bmw-320i-main-bearing-set\"\u003eKing 13-15 BMW 320i Main Bearing Set\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/king-bmw-b48a20b-main-bearing-set\"\u003eKing BMW B48A20B Main Bearing Set\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill King Engine Bearings MB7781SM0.5 fit my engine?\u003c\/strong\u003e\u003cbr\u003eUse King's current application catalog for the exact part number, then confirm the engine code, displacement, crankshaft journal dimensions, housing bore, bearing position, thrust location, and required clearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes King Engine Bearings MB7781SM0.5 fit a standard-size crankshaft?\u003c\/strong\u003e\u003cbr\u003eThe listed size designation is +0.5mm. Do not assume standard size from the vehicle application. Measure every journal and compare the finished crankshaft dimensions with the exact bearing specification before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow should bearing clearance be checked for King MB7781SM0.5?\u003c\/strong\u003e\u003cbr\u003eHave a qualified engine builder measure the housing bore and each crankshaft journal with calibrated tools, install the dry bearing shells in their correct positions, torque the caps to specification, and verify oil clearance against the engine and bearing requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation Instructions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eInstallation requires qualified engine-machining and assembly practices. Identify every cap and bearing position, inspect and measure housing bores and crankshaft journals, verify surface finish and thrust clearance, clean all oil passages, install each shell without contamination or damage, align oil holes and locating features, lubricate as specified, torque fasteners in the correct sequence, verify oil clearance and crankshaft rotation, then prime the lubrication system before initial startup.\u003c\/p\u003e","brand":"King Engine Bearings","offers":[{"title":"Default Title","offer_id":41596875145295,"sku":"KINGMB7781SM0.5","price":31.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/king-engine-bearings-kingmb7781sm0-5-main-bearings-image-01.jpg?v=1788740350","url":"https:\/\/www.blackopsautoworks.com\/en-ca\/products\/king-bmw-n57-d30-a-b-c-n57n-n57s-size-0-5mm-main-bearing-set","provider":"Black Ops Auto Works","version":"1.0","type":"link"}