Mercruiser Outdrive Parts Drawings *How to Videos

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What Mercruiser outdrive do you have?

Help with identifying what Mercruiser, Alpha or Bravo outdrive is on your boat? Stern drive pictures showing year and measurements

  • Need help in identifying what type of sterndrive you have?
  • Easy tips on how to identify your stern drive by year.
  • Identify your upper gearcase by the easy to spot top cap and part dimensions.

Type of outdrive size and years

Mercruiser upper gearcase with eye hook
Mercruiser upper gearcase with eye hook

Square 4-1/2 x 4-1/2 inches 1972 to 1983 ( Large eye hook built into the top cap )

Alpha One 1984-1992
Alpha One 1984-1992
Square 4-1/2 x 4-1/2 inch cap years 1984 to 1992

Mercruiser Alpha 1 parts upper gear-case drawing outdrive parts main index page for upper and lower gear-case technical breakdown.

generation 2
generation 2
Rectangular 4-1/2 x 6-1/2 inch cap Alpha One Generation 2 outdrive years 1992 and up main index page for upper and lower gear case tech drawings
Bravo one upper gearcase
Bravo drive
1986 - up MerCruiser Bravo 1-2 parts website index page.

Contact our service tech for advice troubleshooting your upper gear-case or Mercruiser lower unit