Mercury Marine Not Qualified for Free Shipping Mercury Marine Alpha Gen II 1.47 Drive #5-51100008P

Mercury Marine Alpha Gen II 1.47 Drive #5-51100008P

$2,750.49

Mercury Marine Alpha Gen II 1.47 Drive #5-51100008P

$2,750.49

Mercury Marine Alpha Gen II 1.47 Drive #5-51100008P

$2,750.49

SKU: MRC-5-51100008P

Category: Assemblies

More about this item

Mercury Marine Assemblies

The Mercury Marine Alpha One Gen II sterndrive is one of the most recognized and widely used stern drive assemblies in recreational boating, and for good reason. It has earned its reputation through decades of reliable performance on everything from ski boats to family cruisers. This is the complete drive unit, not a partial assembly, so you are getting the full sterndrive ready to mate up to a compatible transom assembly.

The Alpha One Gen II features a 1.47:1 gear ratio, which strikes a solid balance between acceleration and top-end speed. That ratio works well across a broad range of hull types and engine pairings, making this drive a go-to choice for repowers and replacements alike. The Gen II design brought meaningful improvements over the original Alpha One, including a revised water pump housing, updated sealing, and a more durable shift shaft design that addressed some of the wear issues seen in earlier units.

This drive is compatible with Mercury and Mercruiser inboard/outboard applications that use the Alpha One Gen II bellhousing configuration. If you are doing a repower or replacing a damaged drive, verifying your transom plate and bellhousing compatibility before ordering is always a smart move. The Gen II has been in production since 1991, so there is a wide range of boats it fits, but engine year and model still matter.

Key specs and features at a glance:

  • Recommended for use with Quicksilver 350 MPI Alpha sterndrive enginesThe 
  • Tri-Paint system creates a tough, durable, corrosion-resistant barrier
  • XK360 low-copper alloy enhances corrosion resistance
  • Made with durable spiral-cut steel bevel gears
  • Gears designed for quiet operation
  • Complete Alpha One Gen II sterndrive assembly
  • 1.47:1 gear ratio
  • Compatible with Mercury and Mercruiser Alpha One Gen II bellhousing (1991 and newer)
  • Revised water pump housing and improved sealing over Gen I design
  • Updated shift shaft for improved durability
  • Fits a wide range of inboard/outboard applications
  • OEM Mercury Marine part

Normalized SKU: 551100008P

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