Boat owners, these marine exhaust guard flapper covers are essential for protecting your engine! Designed to fit 3 inch OD exhaust pipes, this pack includes 2 guards with stainless steel clamps. Their main job is preventing seawater from entering your exhaust port when you're stopped, moving slowly, or in reverse - which can cause serious engine damage. These replace several part numbers including Sierra 18-4456, Mercruiser 34765A2, GLM 89240, and others, so they're compatible with many marine engines. The design is simple but effective, and the stainless steel construction means they'll withstand harsh marine conditions without corroding. Installation is straightforward, and once they're on, you can have peace of mind knowing your exhaust system is protected. Whether you have an I/O, stern drive, or other marine engine, having proper exhaust flappers is crucial for preventing water backflow. The quality feels solid, and they're built to last through seasons of use. If you're experiencing issues with water entering your exhaust or just want to be proactive about engine protection, these exhaust guards are a smart investment. They're one of those boating accessories that you might not think about until you need them, but having them installed could save you from expensive engine repairs down the line.
Free 30-day returns 
Free 30-day returns
