Center Main Bearing replaces MerCruiser part # 42943A1
Fits:
Bottom Guided Connecting Rod 70 HP 1987-89 serial number B110054-C221499 75 HP 1990-91 serial number C221500-D000750 80 HP 1987-89 serial number A966142-C221499 90 HP 1987-91 serial number B10054-D000750 100 HP 1988-91 serial number C100000 &up 115 HP 1989-91 serial number C100000-D000750 Top Guided Connecting Rod 100 HP 1992-00 serial number D082000 & up 90 Hp 1992-00 serial number D082000 & up 80 HP 1992-up serial number D082000 & up 75 HP 1992-97 serial number D082000 & up 70 HP 1992-00 serial number D082000 & up 115 HP 1992-00 serial number D082000 & up