Sealed Power 4906 MA
Complete standard-size crankshaft main-bearing set for Cadillac 368/425/472/500 V8 engines.
Sealed Power 4906 MA is a complete standard-size crankshaft main-bearing set for Cadillac 368, 425, 472 and 500 CID V8 engines. The bearings use Sealed Power A-Series aluminium construction for precision stock replacement service.
Application / fitment
- selected 1968–1974 Cadillac 472 CID / 7.7 L
- selected 1970–1976 Cadillac 500 CID / 8.2 L
- selected 1977–1979 Cadillac 425 CID / 7.0 L
- selected 1980–1984 Cadillac 368 CID / 6.0 L
- selected Cadillac DeVille, Fleetwood, Eldorado, Calais and Commercial Chassis
Size distinction: base number 4906MA without an additional suffix is catalogued as standard size. The 0.020-inch undersize version is 4906MA 20. If the physical box is marked “20”, treat it as an undersize set and correct the inventory data before sale.
Technical information
- type: complete crankshaft main-bearing set
- catalogued size for SKU 4906MA: standard
- material: A-Series bi-metal aluminium alloy with silicon
- grade: premium stock replacement
- design characteristic: improved seizure resistance compared with some tri-metal designs
- cross-references: MBS-658AP, MBS-658CP, MS-2970AL and MS970AL
- sets required per engine: 1
- sales unit: 1 complete engine set
Measure the crankshaft main journals, block housing bores and oil clearance at every main bearing. A ground crankshaft requires the correctly suffixed undersize set.