Alpha 1 Gen 1 & 2 Drives
MerCruiser Alpha One Gen I and Gen II Sterndrives
Shop complete genuine Mercury MerCruiser and Quicksilver Alpha sterndrives for single- and twin-engine applications. Choose your Alpha drive generation below, then select the correct gear ratio and rotation for your application.
Which Alpha drive do you have?
- Alpha Gen I: Generally manufactured up to 1989
- Alpha Gen II: Started around 1990
Genuine MerCruiser Alpha Gen I and Gen II drives are available, along with Quicksilver Alpha Gen II replacement sterndrives and transom assemblies.
Need a complete transom assembly? Shop Alpha transom assemblies here.
Looking for individual replacement parts? Enter your drive or transom serial number in our Mercury Marine Parts Lookup to view the correct factory diagrams.
