Main Bearing Set, 2.488" (0.010" undersize)
Item #: IHS2850-ISpecifications: Final Application: (0.020" (2.478") undersize main journal) fits: H up to SN: 391357, (I4, O4, OS4, W4 up to SN: 33339); Fits crankshafts w/ casting #43734DB, 43734DC (All using standard 2.498" main journal & C152 C.I.) Replacement Number: 377969R91 Notes: Priced & sold as set for engine.