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.
  • Tech support Exploded view drawings

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.

See 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