{"product_id":"king-engine-bearings-amc-jeep-390-and-401-main-bearing-set-mb5518am040","title":"King Engine Bearings AMC\/Jeep 390 and 401 Main Bearing Set MB5518AM040","description":"King Engine Bearings AMC \/ JEEP 390, 401 Main Bearing Set\n\u003cp\u003eThe King Engine Bearings MB5518AM040 main bearing set is designed for AMC and Jeep 390 and 401 engines. Built for engine rebuilds and performance applications, this bearing set supports proper crankshaft alignment and dependable operation when installed with correctly prepared engine components.\u003c\/p\u003e\n\n\u003cp\u003eKing Engine Bearings uses precision manufacturing processes to help provide consistent bearing geometry, reliable load distribution, and smooth crankshaft rotation. The set is suitable for professional engine builders, restoration projects, and replacement applications where dependable main bearing performance is required. Always verify crankshaft journal measurements, housing bore condition, and required bearing clearance before installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Listed applications include select 1971–1975 Jeep CJ5 models and select 1980–1981 Jeep CJ7 models equipped with compatible AMC 390 or 401 engines. Confirm engine configuration, crankshaft specifications, and bearing oversize requirements before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e One King Engine Bearings MB5518AM040 main bearing set for compatible AMC\/Jeep 390 and 401 engine applications. Installation hardware, tools, and gaskets are not included unless specifically stated.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Designed for compatible AMC and Jeep 390 and 401 engine rebuilds\u003c\/li\u003e\n\u003cli\u003ePrecision Fit: Manufactured to support accurate crankshaft alignment and consistent bearing clearance\u003c\/li\u003e\n\u003cli\u003eEngine Protection: Helps distribute crankshaft loads across the main bearing surfaces\u003c\/li\u003e\n\u003cli\u003eProfessional Use: Suitable for restoration, replacement, and performance-oriented engine assembly applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n1966 American Motors American Base\u003cbr\u003e\n1966 American Motors American Rogue\u003cbr\u003e\n1966 American Motors Classic 770\u003cbr\u003e\n1966 American Motors Classic Base\u003cbr\u003e\n1966 American Motors Rogue Base\u003cbr\u003e\n1967 American Motors Ambassador Base\u003cbr\u003e\n1967 American Motors American 440\u003cbr\u003e\n1967 American Motors American Base\u003cbr\u003e\n1967 American Motors American Rogue\u003cbr\u003e\n1967 American Motors Marlin Base\u003cbr\u003e\n1967 American Motors Rebel 770\u003cbr\u003e\n1967 American Motors Rebel Base\u003cbr\u003e\n1967 American Motors Rebel SST\u003cbr\u003e\n1968 American Motors Ambassador Base\u003cbr\u003e\n1968 American Motors Ambassador DPL\u003cbr\u003e\n1968 American Motors Ambassador SST\u003cbr\u003e\n1968 American Motors American 440\u003cbr\u003e\n1968 American Motors American Base\u003cbr\u003e\n1968 American Motors American Rogue\u003cbr\u003e\n1968 American Motors AMX Base\u003cbr\u003e\n1968 American Motors Javelin Base\u003cbr\u003e\n1968 American Motors Javelin SST\u003cbr\u003e\n1968 American Motors Rebel 550\u003cbr\u003e\n1968 American Motors Rebel 770\u003cbr\u003e\n1968 American Motors Rebel SST\u003cbr\u003e\n1969 American Motors Ambassador Base\u003cbr\u003e\n1969 American Motors Ambassador DPL\u003cbr\u003e\n1969 American Motors Ambassador SST\u003cbr\u003e\n1969 American Motors AMX Base\u003cbr\u003e\n1969 American Motors Javelin Base\u003cbr\u003e\n1969 American Motors Javelin SST\u003cbr\u003e\n1969 American Motors Rambler 440\u003cbr\u003e\n1969 American Motors Rambler Base\u003cbr\u003e\n1969 American Motors Rambler Hurst SC\/Rambler\u003cbr\u003e\n1969 American Motors Rambler Rogue\u003cbr\u003e\n1970 American Motors Ambassador Base\u003cbr\u003e\n1970 American Motors Ambassador DPL\u003cbr\u003e\n1970 American Motors Ambassador SST\u003cbr\u003e\n1970 American Motors AMX Base\u003cbr\u003e\n1970 American Motors Hornet Base\u003cbr\u003e\n1970 American Motors Hornet SST\u003cbr\u003e\n1970 American Motors Javelin Base\u003cbr\u003e\n1970 American Motors Javelin SST\u003cbr\u003e\n1970 American Motors Javelin SST Mark Donohue\u003cbr\u003e\n1970 American Motors Javelin SST Trans Am\u003cbr\u003e\n1970 American Motors Rebel Base\u003cbr\u003e\n1970 American Motors Rebel SST\u003cbr\u003e\n1970 American Motors Rebel The Machine\u003cbr\u003e\n1970 Jeep J-2500 Base\u003cbr\u003e\n1970 Jeep J-2600 Base\u003cbr\u003e\n1970 Jeep J-3800 Base\u003cbr\u003e\n1971 American Motors Ambassador Brougham\u003cbr\u003e\n1971 American Motors Ambassador DPL\u003cbr\u003e\n1971 American Motors Ambassador SST\u003cbr\u003e\n1971 American Motors Hornet Base\u003cbr\u003e\n1971 American Motors Hornet SC\/360\u003cbr\u003e\n1971 American Motors Hornet Sportabout\u003cbr\u003e\n1971 American Motors Hornet SST\u003cbr\u003e\n1971 American Motors Javelin AMX\u003cbr\u003e\n1971 American Motors Javelin Base\u003cbr\u003e\n1971 American Motors Javelin SST\u003cbr\u003e\n1971 American Motors Matador Base\u003cbr\u003e\n1971 Jeep CJ5 Base\u003cbr\u003e\n1971 Jeep CJ6 Base\u003cbr\u003e\n1971 Jeep J-100 Base\u003cbr\u003e\n1971 Jeep J-2500 Base\u003cbr\u003e\n1971 Jeep J-2600 Base\u003cbr\u003e\n1971 Jeep J-3800 Base\u003cbr\u003e\n1971 Jeep J-4500 Base\u003cbr\u003e\n1971 Jeep J-4600 Base\u003cbr\u003e\n1971 Jeep J-4700 Base\u003cbr\u003e\n1971 Jeep J-4800 Base\u003cbr\u003e\n1972 American Motors Ambassador Brougham\u003cbr\u003e\n1972 American Motors Ambassador SST\u003cbr\u003e\n1972 American Motors Gremlin Base\u003cbr\u003e\n1972 American Motors Hornet Sportabout\u003cbr\u003e\n1972 American Motors Hornet SST\u003cbr\u003e\n1972 American Motors Javelin AMX\u003cbr\u003e\n1972 American Motors Javelin Base\u003cbr\u003e\n1972 American Motors Javelin SST\u003cbr\u003e\n1972 American Motors Matador Base\u003cbr\u003e\n1972 Jeep CJ5 Base\u003cbr\u003e\n1972 Jeep CJ6 Base\u003cbr\u003e\n1972 Jeep Commando Base\u003cbr\u003e\n1972 Jeep J-100 Base\u003cbr\u003e\n1972 Jeep J-2500 Base\u003cbr\u003e\n1972 Jeep J-2600 Base\u003cbr\u003e\n1972 Jeep J-4500 Base\u003cbr\u003e\n1972 Jeep J-4600 Base\u003cbr\u003e\n1972 Jeep J-4700 Base\u003cbr\u003e\n1972 Jeep J-4800 Base\u003cbr\u003e\n1972 Jeep Wagoneer Base\u003cbr\u003e\n1973 American Motors Ambassador Brougham\u003cbr\u003e\n1973 American Motors Gremlin Base\u003cbr\u003e\n1973 American Motors Hornet Base\u003cbr\u003e\n1973 American Motors Hornet Sportabout\u003cbr\u003e\n1973 American Motors Javelin AMX\u003cbr\u003e\n1973 American Motors Javelin Base\u003cbr\u003e\n1973 American Motors Matador Base\u003cbr\u003e\n1973 Jeep CJ5 Base\u003cbr\u003e\n1973 Jeep CJ6 Base\u003cbr\u003e\n1973 Jeep Commando Base\u003cbr\u003e\n1973 Jeep J-100 Base\u003cbr\u003e\n1973 Jeep J-2500 Base\u003cbr\u003e\n1973 Jeep J-2600 Base\u003cbr\u003e\n1973 Jeep J-4500 Base\u003cbr\u003e\n1973 Jeep J-4600 Base\u003cbr\u003e\n1973 Jeep J-4700 Base\u003cbr\u003e\n1973 Jeep J-4800 Base\u003cbr\u003e\n1973 Jeep Wagoneer Base\u003cbr\u003e\n1973 Jeep Wagoneer Custom\u003cbr\u003e\n1974 American Motors Ambassador Brougham\u003cbr\u003e\n1974 American Motors Gremlin Base\u003cbr\u003e\n1974 American Motors Hornet Base\u003cbr\u003e\n1974 American Motors Hornet Sportabout\u003cbr\u003e\n1974 American Motors Javelin AMX\u003cbr\u003e\n1974 American Motors Javelin Base\u003cbr\u003e\n1974 American Motors Matador Base\u003cbr\u003e\n1974 American Motors Matador Brougham\u003cbr\u003e\n1974 American Motors Matador X\u003cbr\u003e\n1974 Bricklin SV-1 Base\u003cbr\u003e\n1974 International 100 Base\u003cbr\u003e\n1974 International 100 Travelall\u003cbr\u003e\n1974 International 200 Base\u003cbr\u003e\n1974 International 200 Travelall\u003cbr\u003e\n1974 Jeep Cherokee Base\u003cbr\u003e\n1974 Jeep Cherokee S\u003cbr\u003e\n1974 Jeep CJ5 Base\u003cbr\u003e\n1974 Jeep CJ6 Base\u003cbr\u003e\n1974 Jeep J10 Base\u003cbr\u003e\n1974 Jeep J20 Base\u003cbr\u003e\n1974 Jeep Wagoneer Base\u003cbr\u003e\n1974 Jeep Wagoneer Custom\u003cbr\u003e\n1975 American Motors Gremlin Base\u003cbr\u003e\n1975 American Motors Hornet Base\u003cbr\u003e\n1975 American Motors Hornet Sportabout\u003cbr\u003e\n1975 American Motors Matador Base\u003cbr\u003e\n1975 Jeep Cherokee Base\u003cbr\u003e\n1975 Jeep Cherokee S\u003cbr\u003e\n1975 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1975 Jeep CJ5 Base\u003cbr\u003e\n1975 Jeep CJ5 Renegade\u003cbr\u003e\n1975 Jeep CJ6 Base\u003cbr\u003e\n1975 Jeep J10 Base\u003cbr\u003e\n1975 Jeep J20 Base\u003cbr\u003e\n1975 Jeep Wagoneer Base\u003cbr\u003e\n1975 Jeep Wagoneer Custom\u003cbr\u003e\n1976 American Motors Gremlin Custom\u003cbr\u003e\n1976 American Motors Hornet Base\u003cbr\u003e\n1976 American Motors Hornet Sportabout\u003cbr\u003e\n1976 American Motors Matador Base\u003cbr\u003e\n1976 Jeep Cherokee Base\u003cbr\u003e\n1976 Jeep Cherokee S\u003cbr\u003e\n1976 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1976 Jeep CJ5 Base\u003cbr\u003e\n1976 Jeep CJ5 Renegade\u003cbr\u003e\n1976 Jeep CJ7 Base\u003cbr\u003e\n1976 Jeep CJ7 Renegade\u003cbr\u003e\n1976 Jeep J10 Base\u003cbr\u003e\n1976 Jeep J20 Base\u003cbr\u003e\n1976 Jeep Wagoneer Base\u003cbr\u003e\n1976 Jeep Wagoneer Custom\u003cbr\u003e\n1977 American Motors Hornet AMX\u003cbr\u003e\n1977 American Motors Hornet Base\u003cbr\u003e\n1977 American Motors Hornet Sportabout\u003cbr\u003e\n1977 American Motors Matador Base\u003cbr\u003e\n1977 Jeep Cherokee Base\u003cbr\u003e\n1977 Jeep Cherokee S\u003cbr\u003e\n1977 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1977 Jeep CJ5 Base\u003cbr\u003e\n1977 Jeep CJ5 Golden Eagle\u003cbr\u003e\n1977 Jeep CJ5 Renegade\u003cbr\u003e\n1977 Jeep CJ7 Base\u003cbr\u003e\n1977 Jeep CJ7 Golden Eagle\u003cbr\u003e\n1977 Jeep CJ7 Renegade\u003cbr\u003e\n1977 Jeep J10 Base\u003cbr\u003e\n1977 Jeep J20 Base\u003cbr\u003e\n1977 Jeep Wagoneer Base\u003cbr\u003e\n1978 American Motors AMX Base\u003cbr\u003e\n1978 American Motors Concord Base\u003cbr\u003e\n1978 American Motors Matador Base\u003cbr\u003e\n1978 American Motors Pacer Base\u003cbr\u003e\n1978 Jeep Cherokee Base\u003cbr\u003e\n1978 Jeep Cherokee S\u003cbr\u003e\n1978 Jeep Cherokee Wide Track\u003cbr\u003e\n1978 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1978 Jeep CJ5 Base\u003cbr\u003e\n1978 Jeep CJ5 Golden Eagle\u003cbr\u003e\n1978 Jeep CJ5 Renegade\u003cbr\u003e\n1978 Jeep CJ7 Base\u003cbr\u003e\n1978 Jeep CJ7 Golden Eagle\u003cbr\u003e\n1978 Jeep CJ7 Renegade\u003cbr\u003e\n1978 Jeep J10 Base\u003cbr\u003e\n1978 Jeep J20 Base\u003cbr\u003e\n1978 Jeep Wagoneer Base\u003cbr\u003e\n1979 American Motors AMX Base\u003cbr\u003e\n1979 American Motors Concord Base\u003cbr\u003e\n1979 American Motors Concord DL\u003cbr\u003e\n1979 American Motors Concord Limited\u003cbr\u003e\n1979 American Motors Pacer DL\u003cbr\u003e\n1979 American Motors Pacer Limited\u003cbr\u003e\n1979 American Motors Spirit Base\u003cbr\u003e\n1979 Jeep Cherokee Base\u003cbr\u003e\n1979 Jeep Cherokee S\u003cbr\u003e\n1979 Jeep Cherokee Wide Track\u003cbr\u003e\n1979 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1979 Jeep Cherokee Wide Track Golden Eagle\u003cbr\u003e\n1979 Jeep CJ5 Base\u003cbr\u003e\n1979 Jeep CJ5 Golden Eagle\u003cbr\u003e\n1979 Jeep CJ5 Renegade\u003cbr\u003e\n1979 Jeep CJ7 Base\u003cbr\u003e\n1979 Jeep CJ7 Golden Eagle\u003cbr\u003e\n1979 Jeep CJ7 Renegade\u003cbr\u003e\n1979 Jeep J10 Base\u003cbr\u003e\n1979 Jeep J20 Base\u003cbr\u003e\n1979 Jeep Wagoneer Base\u003cbr\u003e\n1979 Jeep Wagoneer Limited\u003cbr\u003e\n1980 Jeep Cherokee Base\u003cbr\u003e\n1980 Jeep Cherokee S\u003cbr\u003e\n1980 Jeep Cherokee Wide Track\u003cbr\u003e\n1980 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1980 Jeep Cherokee Wide Track Golden Eagle\u003cbr\u003e\n1980 Jeep Cherokee Wide Track Laredo\u003cbr\u003e\n1980 Jeep Cherokee Wide Track Limited\u003cbr\u003e\n1980 Jeep CJ5 Base\u003cbr\u003e\n1980 Jeep CJ5 Golden Eagle\u003cbr\u003e\n1980 Jeep CJ5 Laredo\u003cbr\u003e\n1980 Jeep CJ5 Renegade\u003cbr\u003e\n1980 Jeep CJ7 Base\u003cbr\u003e\n1980 Jeep CJ7 Golden Hawk\u003cbr\u003e\n1980 Jeep CJ7 Laredo\u003cbr\u003e\n1980 Jeep CJ7 Renegade\u003cbr\u003e\n1980 Jeep J10 Base\u003cbr\u003e\n1980 Jeep J20 Base\u003cbr\u003e\n1980 Jeep Wagoneer Base\u003cbr\u003e\n1980 Jeep Wagoneer Limited\u003cbr\u003e\n1981 Jeep Cherokee Base\u003cbr\u003e\n1981 Jeep Cherokee Chief\u003cbr\u003e\n1981 Jeep Cherokee Laredo\u003cbr\u003e\n1981 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1981 Jeep Cherokee Wide Track Laredo\u003cbr\u003e\n1981 Jeep CJ5 Base\u003cbr\u003e\n1981 Jeep CJ5 Laredo\u003cbr\u003e\n1981 Jeep CJ5 Renegade\u003cbr\u003e\n1981 Jeep CJ7 Base\u003cbr\u003e\n1981 Jeep CJ7 Laredo\u003cbr\u003e\n1981 Jeep CJ7 Renegade\u003cbr\u003e\n1981 Jeep J10 Base\u003cbr\u003e\n1981 Jeep J20 Base\u003cbr\u003e\n1981 Jeep Wagoneer Base\u003cbr\u003e\n1981 Jeep Wagoneer Limited\u003cbr\u003e\n1982 Jeep Cherokee Base\u003cbr\u003e\n1982 Jeep Cherokee Chief\u003cbr\u003e\n1982 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1982 Jeep Cherokee Wide Track Laredo\u003cbr\u003e\n1982 Jeep J10 Base\u003cbr\u003e\n1982 Jeep J20 Base\u003cbr\u003e\n1982 Jeep Wagoneer Base\u003cbr\u003e\n1982 Jeep Wagoneer Brougham\u003cbr\u003e\n1982 Jeep Wagoneer Limited\u003cbr\u003e\n1983 Jeep Cherokee Base\u003cbr\u003e\n1983 Jeep Cherokee Pioneer\u003cbr\u003e\n1983 Jeep Cherokee Wide Track Chief\u003cbr\u003e\n1983 Jeep Cherokee Wide Track Laredo\u003cbr\u003e\n1983 Jeep J10 Base\u003cbr\u003e\n1983 Jeep J20 Base\u003cbr\u003e\n1983 Jeep Wagoneer Brougham\u003cbr\u003e\n1983 Jeep Wagoneer Limited\u003cbr\u003e\n1984 Jeep Grand Wagoneer Base\u003cbr\u003e\n1984 Jeep Grand Wagoneer Limited\u003cbr\u003e\n1984 Jeep J10 Base\u003cbr\u003e\n1984 Jeep J20 Base\u003cbr\u003e\n1985 Jeep Grand Wagoneer Base\u003cbr\u003e\n1985 Jeep Grand Wagoneer Limited\u003cbr\u003e\n1985 Jeep J10 Base\u003cbr\u003e\n1985 Jeep J20 Base\u003cbr\u003e\n1986 Jeep Grand Wagoneer Base\u003cbr\u003e\n1986 Jeep J10 Base\u003cbr\u003e\n1986 Jeep J20 Base\u003cbr\u003e\n1987 Jeep Grand Wagoneer Base\u003cbr\u003e\n1987 Jeep J10 Base\u003cbr\u003e\n1987 Jeep J20 Base\u003cbr\u003e\n1988 Jeep Grand Wagoneer Base\u003cbr\u003e\n1988 Jeep J10 Base\u003cbr\u003e\n1988 Jeep J20 Base\u003cbr\u003e\n1989 Jeep Grand Wagoneer Base\u003cbr\u003e\n1990 Jeep Grand Wagoneer Base\u003cbr\u003e\n1991 Jeep Grand Wagoneer Base\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Unknown\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"King Engine Bearings","offers":[{"title":"Default Title","offer_id":67700001439996,"sku":"MB5518AM040","price":102.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/12510045ae28df8e313bdec68ed385b6L_0c94a9e8-e0fb-4c05-ae30-8b65db876bbe.jpg?v=1791955464","url":"https:\/\/diycustoms.store\/products\/king-engine-bearings-amc-jeep-390-and-401-main-bearing-set-mb5518am040","provider":"diycustoms.store","version":"1.0","type":"link"}