4" Exhaust Flapper & Clamp Backflow Preventer for Marine (18-4457, 89250)

Includes: - 4" Exhaust Flapper & Clamp Backflow Preventer

Fits Models: - Universal / check fitment before purchase

Model Years: - Check fitment before purchase

Submodels: - Applies to listed models

Engine Options: - Compatible with standard engine options

Description: This 4" Exhaust Flapper & Clamp Backflow Preventer is designed for marine applications. It is an factory component for maintaining the efficiency of your marine exhaust system.

Features: - 4-inch diameter for standard marine exhaust systems - Durable construction for long-lasting performance - Prevents backflow to protect engine integrity - Hassle-free installation with included clamp - Suitable for various marine engine configurations

Part Number: 18-4457, 89250