Technical Guides & Articles

Technical Guides

Technical Articles

Schematics & Components

SEI optimizes tooling and specialized processes to ensure a refined and improved drive you can rely on. Learn about the products that make up an SEI sterndrive.

Tech Corner

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Weekly articles from the SEI team — tips, insights, and technical know-how straight from the shop floor.

June 30, 2026

Which SEI Bravo Replacement Do You Need?

“Bravo” isn’t one drive — it’s a family. This step-by-step guide walks you through pinning down the right Bravo One, Two, or Three replacement by prop count, spline count, gear ratio, and oil system before you place your order.

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June 23, 2026

MerCruiser Alpha Style Sterndrive: Replace or Rebuild?

If your MerCruiser sterndrive is leaking gear lube, grinding in gear, or came up with water in the oil, you're facing a decision most boat owners eventually hit. This guide walks you through how to diagnose the failure and choose the right path forward.

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News/Announcements

Research and Development

Featured Parts

Technical Guides & Articles