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, ensuring optimal exhaust flow while preventing backflow that can damage your engine. Constructed for durability and reliability, 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