Exhaust Flappers Water Shutter for Mercruiser 4.3 5.0 5.7 7.4 305 350 454 502

This exhaust flapper water shutter is designed for MerCruiser marine engine applications with 4.3, 5.0, 5.7, and 7.4 engine listings and 305, 350, 454, and 502 displacement references.

Product Overview

This MerCruiser exhaust flapper, also called a water shutter, is a marine engine exhaust component. It is listed for MerCruiser applications associated with the engine sizes and displacement references shown in the title.

Key Features & Performance

• Exhaust flapper design

• Also identified as a water shutter

• Listed for MerCruiser marine engine applications

• Covers 4.3, 5.0, 5.7, and 7.4 engine listings

• Includes 305, 350, 454, and 502 displacement references

Fitment & Compatibility

• for MerCruiser 4.3

• for MerCruiser 5.0

• for MerCruiser 5.7

• for MerCruiser 7.4

• for MerCruiser 305

• for MerCruiser 350

• for MerCruiser 454

• for MerCruiser 502

Common Uses

• Replacement of a MerCruiser exhaust flapper

• Replacement of a MerCruiser water shutter

• Marine engine exhaust system service

Technical Specifications

Product Type: Exhaust flapper water shutter

Brand Compatibility: MerCruiser

Engine Compatibility: 4.3, 5.0, 5.7, and 7.4

Displacement References: 305, 350, 454, and 502

Application: Marine engine exhaust system

Frequently Asked Questions

Q: Which MerCruiser applications are listed for this water shutter? A: The title lists MerCruiser 4.3, 5.0, 5.7, 7.4, 305, 350, 454, and 502 applications.

Q: How should fitment be verified? A: Confirm the existing exhaust flapper or water shutter dimensions, engine designation, and part number against your MerCruiser application before purchase.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.