Sierra 18-2370 Bearing Carrier The Sierra 18-2370 Bearing Carrier is interchangeable with the following: Chrysler/Force/US Marine 19291A3, Mallory 9-72600, Mercury 19291A3, 19291A2, 19291A1. Each Sierra product meets or exceeds the original equipment part it replaces. Sierra Bearing Carrier Meets or exceeds the original equipment quality Sierra part number: 18-2370 Interchangeable with the following: Chrysler/Force/US Marine 19291A3, Mallory 9-72600, Mercury 19291A3, 19291A2, 19291A1