Upper Seal Kit for MerCruiser R-MR Alpha I Gen I - 26-32511A1, 32511A2, 18-2648

Upper Seal Kit for MerCruiser

This upper seal kit for MerCruiser R-MR Alpha I Gen I outdrives replaces OEM parts 26-32511A1, 32511A2, and 18-2648 to restore sealing performance.

Overview

This upper seal kit for MerCruiser is designed for the R-MR Alpha I Gen I drive systems. It includes all necessary seals to prevent water intrusion and maintain gearcase integrity. Ideal for boat owners and marine mechanics performing routine maintenance or rebuilds on MerCruiser outdrives.

Built For Performance

• Precision-molded rubber seals ensure a tight fit
• Resists oil and saltwater corrosion
• Includes multiple seal sizes for complete upper housing coverage
• OEM-spec materials for long-lasting durability
• Compatible with MerCruiser Alpha One Gen I and R-MR drives

Fits These Machines

• for MerCruiser Alpha One Gen I
• for MerCruiser R-MR

On-The-Job Use

• Replacing worn upper seals on inboard/outboard boat engines
• During annual outdrive service and maintenance
• Rebuilding MerCruiser sterndrive upper gearcases

Specs At A Glance

Good To Know

Q: Are these seals reusable? A: No, upper seals should always be replaced with new ones during service to ensure proper sealing and prevent leaks.

Q: Does this kit include the lower seal? A: No, this is specifically the upper seal kit for the gearcase; lower seals are sold separately.

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