The Ultimate Aftermarket Engine Flushing Solution
Keep your outboard performing at its best with the Flush-M Quick Flushing Plug Replacement, engineered specifically for Yamaha and Honda Four-Stroke Outboard Engines. Designed as a permanent, high-quality upgrade to your OEM flush port, the Flush-M system makes engine maintenance faster, cleaner, and more reliable — a must-have for any serious boater.
Yamaha Outboards: All four-stroke models from 8HP–450HP, including Offshore, VMax SHO, and XTO Offshore series.
Honda Outboards: All four-stroke models from 40HP–350HP.
Permanent Quick-Connect Upgrade – Installs inline between your OEM flush plug and base for long-term convenience.
Effortless Engine Flushing – Connect your hose in seconds using the included quick connector — no tools or threading required.
Protects Engine Longevity – Helps prevent salt, sand, and corrosion build-up in your cooling passages.
UV-Stable & Marine-Grade – Built from premium materials designed to handle harsh marine conditions.
Perfect for Multi-Engine Boats – Save time and ensure consistent flushing across all engines.
Unscrew the OEM Yamaha or Honda flush port from its base (counter-clockwise).
Securely screw the black male quick connect into the OEM flush port.
Screw the black female quick release onto the flush port base.
Connect the two newly installed fittings — your engine is now ready for quick flushing.
1 × Flush-M Quick Connect Assembly (Male + Female fittings)
Installation Instructions
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Used once so far is quicker than old flush system on my Yamaha 70 four stroke. Just a bit pricey though.
Australian Dollars
