Description
Flush-M Mercury 75-500hp Black
Simplify engine maintenance with the Flush-M Mercury, a permanent replacement for the OEM flush plug on late-model Four Stroke Mercury Outboard Engines. Designed for Verado, Pro XS, FourStroke, and SeaPro series (75–500 hp), this innovative adapter makes flushing your engine easier, faster, and more reliable — ideal for single or multiple-engine boats.
The kit includes a 90° swivel elbow attachment for larger V8 Mercury engines, preventing hose kinks that can restrict water flow during flushing. The Flush-M permanently replaces the OEM straight fitting and is available in black or white to match your engine. Installation is straightforward: simply remove the OEM plug, attach the Flush-M to the lanyard and 3/4" female hose receptacle, and secure it with a 1/4-turn clockwise. To flush, connect a hose to the quick-connect adapter, then refit the cap when done.
Key Features:
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Permanent replacement for Mercury OEM flush plug (Part: 22-888958001)
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Compatible with Mercury Verado, Pro XS, FourStroke, and SeaPro series (75–500 hp)
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Includes 90° swivel elbow for V8 engines to prevent hose kinks
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Quick-connect flushing cap for easy engine maintenance
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Available in black or white
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Simple, secure 1/4-turn installation
