New Transom Seal for Mercruiser MR, Alpha Gen I, Replaces 65533A1 1983 - 1990

Transom Seal for Mercruiser

This transom seal for Mercruiser outdrives replaces the OEM 65533A1 and fits 1983 through 1990 models, providing a watertight barrier between the transom and outdrive. Designed for Mercruiser MR and Alpha Gen I units, this seal prevents water intrusion and corrosion while maintaining structural integrity.

Overview

This transom seal for Mercruiser outdrives is a direct replacement for part number 65533A1 and covers 1983-1990 Mercruiser sterndrive models. It is engineered to fit MR and Alpha Gen I configurations, ensuring a secure seal that keeps water out and performance in.

Built For Performance

• Replaces OEM number 65533A1 for precise fit
• Constructed from marine-grade rubber for long-lasting flexibility
• Corrosion-resistant design withstands saltwater and freshwater
• Easy to install with common hand tools
• Prevents water seepage that can cause costly transom damage

Fits These Machines

• for Mercruiser MR
• for Mercruiser Alpha Gen I

On-The-Job Use

• Installed on boats with Mercruiser sterndrive systems
• Used during outdrive removal or replacement
• Essential for annual maintenance and winterization

Specs At A Glance

Good To Know

Q: Will this seal fit my 1987 Mercruiser Alpha One? A: Yes, this transom seal is designed for the Alpha Gen I series, which covers 1983-1990 production years. Always confirm your serial number before ordering.

Q: What happens if I use an old, worn seal? A: A worn seal can allow water into the transom area, leading to rot and structural failure. Replacing it with this new seal restores a proper watertight barrier.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.