Product Details
✓🚤【Perfect Compatibility】: Our boat ear muffs are compatible with Mercury and Mariner 20HP+ 2-stroke outboards, 9.9–15HP 4-stroke BigFoot engines, 2005+ 8–15HP 4-stroke outboards, plus compatible with Mercury High Performance Torque Master gear cases and MerCruiser sterndrives. These boat motor muffs provide a reliable fit for routine engine flushing
✓✨【Reinforced Through-Rod Design】: Built with a reinforced through-rod that runs through the outboard motor muffs and securely holds the rubber cups against the lower unit. The strengthened structure helps keep the boat muffs outboard firmly in place during flushing, engine testing, and routine maintenance
✓✨【Upgraded Connection with Built-In Shut-Off Valve】: Features a standard garden hose connection for quick setup and an integrated shut-off valve for convenient water flow control without disconnecting the hose. These boat muffs make routine outboard motor flushing more convenient and efficient
✓🚤【Durable Rubber Ear Muffs】: The boat water muffs are built with durable rectangular rubber ear muffs that create a tight sealing around water intake ports. The larger sealing surface delivers strong and consistent water flow directly into the cooling system while minimizing water leakage during engine flushing
✓🚤【Protect Your Boat Engine】: Provides a steady cooling water supply to help flush out salt, silt, debris, and vegetation from the cooling system. These boat ear muffs are suitable for routine maintenance, engine testing, and winterizing, helping reduce salt buildup, blockages, and corrosion