Flush Your Motors, Without Flushing Your Time
Flushing Outboards Is a Pain.
We Made It Effortless.
Welcome to the future of outboard motor maintenance. We’ve reimagined the way you flush your engines with a marine-grade, portable system that makes routine maintenance faster, easier, and more reliable.
With Flush Port Quick Connects designed for Yamaha, Mercury, Suzuki, and Honda outboards, Flushmaster Outboard Flushing System automates the flushing process, protects your investment, and saves you time and effort — no more fumbling with hoses or struggling with hard-to-reach flush ports.
With innovative accessories, durable construction, and a commitment to quality, Flushmaster delivers convenience, protection, and confidence every time you hit the water.
Made for Boaters by Boaters
System Highlights:
Automated Flushing - Flush up to four engines sequentially
Time-Saving - Reduce a 30 minute task to 30 seconds
Portable Design - Runs on AA batteries so you can take it anywhere
Everything you need for effortless outboard maintenance — all in one system.
Convenience
Flushmaster makes outboard maintenance easier than ever. Fully portable and powered by AA batteries, it connects to any water source and automates flushing with just the push of a button. No more dragging hoses or standing around — our Flush Port Quick Connects and accessories let you use it anywhere, saving you time, effort, and water. Flushmaster is the ultimate convenience in outboard flushing.
Protection
Flushmaster protects your outboard investment. Improper or inconsistent flushing can void your warranty and lead to costly repairs. Flushmaster makes it easy to meet manufacturer recommendations by automating a full 15-minute flush for each motor after use. With just the push of a button, you’ll safeguard your warranty, extend the life of your outboards, and keep your performance at its peak — no more outdated, time-consuming methods.
Reliability
Flushmaster products are built tough, backed by a 1-year warranty and a 30-day performance guarantee. Made with waterproof, saltwater-resistant ABS, marine-grade 316 stainless steel, and airtight rubber gaskets, they’re engineered for long-lasting outdoor performance. Tested in extreme conditions, Flushmaster is designed to deliver when it matters most — so you can focus on boating, not worrying about your gear.
Flushmaster
The Flushmaster takes the hassle out of outboard maintenance. This marine-grade, portable device automatically flushes up to four outboard motors — one after the other — with just the press of a button. Powered by (3) AA batteries, it connects to a water spigot or hose, flushes each motor sequentially, then shuts off automatically, saving you time, water, and effort.
Choose between 2- or 4-Outlet models with different hose lengths to fit your setup. Built tough with an IP67 waterproof rating, the Flushmaster is the easiest way to protect your investment and keep your engines running like new — without standing around switching hoses.
Flush Port Quick Connects
Say goodbye to frustrating, hard-to-reach OEM flush ports. Our Flush Port Quick Connects permanently replace your stock flushing ports with a durable, marine-grade, snap-on solution built to withstand the harshest elements.
Designed for Yamaha, Mercury, Suzuki, and Honda outboards, these connectors let you flush your engines in seconds — no twisting, threading, or struggling with hoses.
Enjoy a leak-free connection, faster maintenance, and more time on the water.
3 Easy Steps to Flush
1. CONNECT
Connect a freshwater source to Flushmaster device.
You can hard plumb it or simply connect to a reinforced garden hose.
2. CONNECT
Connect the outlet hose(s) to your outboard(s).
This is made easier with our Flush Port Quick Connects.
3. START
Power On the device, Press Start, and walk away!
Flushmaster sequentially cycles through each outlet before automatically shutting off, blocking the water flow.
Let customers speak for us
Getting a few years behind me, and climbing all over the lift to flush motors can be a bit difficult. With Flushmaster quick connect and box it is very easy with a ouch of the button.
I have so impressed with the FlushMaster solution.
I have 3 Mercury 400s with the quick connects and I use the FlushMatsers every time I take the boat out. I needed an extra length of hose to reach my motors and one (1) call to customer service had the parts “in the mail” the same day.
This is one of those rare products/companies that exceed expectations.
I bought this boat, which is less than year old, but had no saying how it was built and I couldn’t get any flush systems. I’ve struggled with these motors before for years, where you worry about, dropping the rubber washer out of the on the water when you try to flush out a regular Yamaha And as simple and easy as this thing is, it’s the best product on the market for somebody with an aftermarket thought nothing better flawless works great product
This changes everything for flushing the motor. Makes it so much easier!
works great! just make sure the cap is clicked on so the engine won't overheat.....I get much better flush pressure with this than I did with the seachoice model I was previously using.
Set it. Forget it. Come back and the engines are flushed! Love it.
Easy transition from original connection to this quick connect.
This is the perfect way to protect my flushmaster. Flushmaster is the best and easiest way to protect my 2 motors. Love it
great product, great service, highly recomend
Im very pleased with the flushing system it’s nice to wash boat why motors are being flushed !
Thank you
Hooked On Maintenance Blog
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