Rectangle Boat Motor Muffs

Heavy-Duty Build: Crafted with durable rubber and watertight seals, our premium boat muffs are designed for outboards and I/Os. Perfect for testing, cooling, winterizing, warming, and idling your engine before use or as part of a winterizing kit. Universal Compatibility: Featuring rotating ears and a 9 1/4" deep U-channel, these outboard motor muffs fit most outboard and inboard/outboard (I/O) engines. The large ear muffs efficiently flush away debris while ensuring a thorough clean. Optimized Water Flow: A large-mouth intake increases water supply for powerful engine flushing. The flexible, watertight muffs (3 1/4" x 5") bend to securely grip your intakes for maximum effectiveness. Hassle-Free Use: Connects easily to a standard garden hose with an included quick-connect male adapter and rubber washer. No tools required—compatible with marine salt flush kits and other boat maintenance accessories. Why Better Boat: As a family-owned American business, we are dedicated to providing