4" Exhaust Flapper Protector Valve for Mercruiser (18-4457, 12644Q01, 12644A1)

Includes: - 4" Exhaust Flapper Protector Valve

Fits Models: - Mercruiser

Model Years: - Check fitment before purchase

Submodels: - Applies to listed models

Engine Options: - Compatible with standard engine options

Description: This 4" Exhaust Flapper Protector Valve is designed for Mercruiser marine engines. It helps to prevent water from entering the exhaust system. The valve is a direct replacement for OEM part numbers 18-4457, 12644Q01, and 12644A1.

Features: - Durable construction for marine environments - Direct replacement for specific Mercruiser models - Helps prevent water intrusion into the exhaust system - Simple to install with standard tools - Compatible with various Mercruiser engine configurations