Mercury 31-48941A1 OMC 509434 Lower Gearcase Roller Bearing Aqua Power 1903

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  • Regular price $29.95
  • 1 available


  • Lower Gearcase Tapered Roller Bearing
  • Position: Lower
  • For use with: Many MerCruiser Stern Drives: 228TR (2.00:1), 330TR (2.00:2) S/N 4794900 and up, II TR (2.00:1) S/N 3377316-479899 - Upper Bearing.
  • Manufacturer: Aqua Power
  • Part Number: 1903
  • Also Known As: Mercury 31-48941A1, 3148941A1, OMC 509434, Sierra 18-1163, 181163