Quicksilver Engine Flushing Kits

Keep your outboard running cleaner, cooler, and longer with the Quicksilver engine flushing kits—a simple, must-have maintenance tool for select Mercury and Mariner 2.5–9.9 HP engines. These easy-to-use kits quickly screw into the engine's flushing port, allowing you to flush away salt, debris, and invasive deposits after every outing, especially in saltwater or brackish conditions, to help protect internal passages and extend engine life. Built to Quicksilver's rigorous OEM standards and trusted for decades in marine performance, these engine flushing kits deliver reliable, hassle-free flushing when the engine is off, giving boaters added confidence and long-term protection with minimal effort. Order the kit designed for your application. Show Less