Replaces For MerCruiser Water Flapper Exhaust Shutter 60930 18-2727 9-42800

Water Flapper Exhaust Shutter for MerCruiser

This water flapper exhaust shutter for MerCruiser prevents backflow of water into the exhaust system, replacing OEM cross-reference numbers 60930, 18-2727, and 9-42800.

Overview

The water flapper exhaust shutter is a vital component in marine exhaust systems. It acts as a one-way valve to keep water from surging back into the engine. This replacement shutter is designed for MerCruiser engines, ensuring reliable performance.

Built For Performance

• Corrosion-resistant stainless steel construction
• Precision-machined hinge for smooth operation
• High-temp rubber flapper for a tight seal
• Direct replacement for OEM part numbers 60930, 18-2727, 9-42800
• Lightweight design for minimal exhaust flow restriction

On-The-Job Use

• Commonly used in MerCruiser inboard and stern drive engines
• Prevents water ingestion during deceleration or shutdown
• Ideal for fresh and saltwater applications
• Essential for winterizing and maintenance

Specs At A Glance

Good To Know

Q: What is the purpose of the water flapper? A: It prevents water from entering the engine through the exhaust, which can cause damage.

Q: Is this an OEM part? A: No, it is an aftermarket replacement designed to match OEM specifications.

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