Mercruiser Lower Units & Uppers

Mercury MerCruiser Genuine Parts

  • Expert Remanufactured Mercruiser Sterndrive Lower Units, Upper Gearcases.
  • Outdrives rebuilt by Certified Mechanics 
  • OEM Parts
  • Quality Mercruiser Gearcases you can trust.
  • Quick Shipping.

US Boatworks – remanufacturing Mercruiser gearcases for over 35 years.
Quality you can trust.

OEM# MERCRUISER LOWERS STK# PRICE DETAILS
1623-815822A53 Alpha One, Gen 2 , 1991-2011 BW1 $1,495
1623-8951A43 Alpha One, 1984-1990 BW2 $1,495
OEM# MERCRUISER UPPERS STK# PRICE DETAILS
1547-9412A20 Alpha One , 1.50 (20/22) 1984-90 BW6A $1,295
1547-861063A12 Alpha One Gen 2, 1.50 (20/22) 1991-2012 BW6B $1,395
1547-9412A21 Alpha One, 1.65, 1984-90 BW7A $1,295
1547-861063A10 Alpha One Gen 2, 1.65, 1991-2012 BW7B $1,395
1547-9412A22 Alpha One, 1.84, 1984-1990 BW8A $1,295
1547-861063A8 Alpha One Gen 2,1.84 (17/19) 1991-2012 BW8B $1,395
1547-9412A23 Alpha One, 1.98, 1984-1990 BW9A $1,295
1547-861063A6 Alpha One Gen 2, 1.98, 1991-2012 BW9B $1,395