NEW Mercury 135-150-175-200-225-250-300 Water Pump Coupling 22-887987A 1

Water Pump Coupling for Mercury

This water pump coupling for Mercury outboards is a direct replacement for OEM part number 22-887987A, transferring drive from the driveshaft to the impeller.

Overview

This water pump coupling for Mercury fits a range of outboard models from 135 to 300 horsepower. It ensures the pump impeller turns at the correct speed for proper cooling. Machined to factory specs for a reliable fit and long service life.

Built For Performance

• Machined from durable stainless steel
• Fits splined driveshaft and impeller keyway
• Corrosion-resistant finish for saltwater use
• Precision tolerances to prevent vibration
• Direct replacement for 22-887987A

Fits These Machines

• for Mercury 135
• for Mercury 150
• for Mercury 175
• for Mercury 200
• for Mercury 225
• for Mercury 250
• for Mercury 300

On-The-Job Use

• Replacing a worn or broken coupling during impeller service
• Restoring water pump drive in Mercury outboards
• Use when rebuilding the lower unit to ensure reliable cooling

Specs At A Glance

Good To Know

Q: Is this coupling for original Mercury pumps? A: It is a direct replacement for the OEM part, made to match factory specifications.

Q: Can I use this on a 300 horsepower model? A: Yes, it fits Mercury outboards from 135 to 300 horsepower.

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