The Exhaust Flapper Shutter for MerCruiser Stern Drives, prevents the backward flow of lake water into the engine when shutting down during hot engine conditions
Fit for MerCruiser 2.5L 3.0L 3.7L Exhaust System
Replacement OE# 60930 25‑43809 Mallory 9-42800 and Sierra 18-2727
Package includes 1pc Flapper, 2pcs Grommets, easy to install
Made of premium metal and rubber, this flapper ensures exceptional durability, corrosion resistance, and extended longevity, providing the best OEM quality