4" Exhaust Flapper & Clamp Backflow Preventer for Marine (18-4457, 12644A1, 12644Q01)

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 efficient exhaust flow while preventing backflow. It is essential for maintaining engine performance and protecting against water intrusion. The durable construction ensures longevity in harsh marine environments.

Features: - 4-inch diameter for optimal exhaust flow - Designed to prevent backflow and water intrusion - Durable materials suitable for marine conditions - Simple installation with included clamp - Compatible with various marine engine setups

Part Numbers: 18-4457, 12644A1, 12644Q01