Get Started with Easy Flushing
Start building your perfect setup below!
- Choose your Flushmaster
- Choose your Quick Connects
- Choose your Accessories
Build Your System
Choose the products that fit your setup.
Key Highlights
Automated Outboard Flushing System
Flush Your Motors Without Flushing Your Time!
Free Domestic Shipping
30-Day Guarantee
Fast, Reliable Customer Support
Key Highlights
Automated Outboard Flushing System
Factory flush ports on outboards often cause more headaches than they solve. From stuck caps that require tools to remove, to back-threaded fittings that strip easily, to ports that need constant threading and unthreading — boat owners have had enough.
The Flushmaster Outboard Flushing System eliminates these problems for good.
This complete system is comprised of:
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The Flushmaster Device - A rugged, portable flushing unit designed to handle harsh marine environments. IP67 waterproof, hurricane-tested, and built for true on-the-go flexibility.
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Flush Port Quick Connects - Custom-designed fittings that replace frustrating factory ports with smooth, secure, leak-free connections. Snap on, flush, snap off—no hassle, just results.
- Accessories - Carefully crafted for any setup, our accessories expand on the versatility of Flushmaster. Mount it, Move it, or Store it.
Effortless Engine Flushing, Every Time
No more battling hoses, caps, or ports. The Automated Outboard Flushing System makes flushing your outboard fast, easy, and reliable. Whether you're using a boat lift, dock, marina, or storing your boat on a trailer—this system works wherever you are, as long as you have access to a freshwater supply.
Customizable to Fit Any Setup
Choose from the Flushmaster 2-Outlet or 4-Outlet Devices, and select the compatible Flush Port Quick Connects for your outboard brand (Mercury, Yamaha, Suzuki, and Honda). This complete upgrade gives you everything you need to ensure your motor is properly flushed after every use, whether you have a single-engine or multi-engine boat.
Built for Durability, Designed for Convenience
Made with marine-grade materials, the system is built to withstand tough salt conditions. It prevents corrosion and buildup, extending the life of your engine and protecting your investment. Flushmaster is portable and runs on AA batteries.
Mount, Move, or Store—Your System, Your Way
Flushmaster is designed for ultimate flexibility. Mount it temporarily with our accessories, hard plumb it onto your boat, or stash it in your bag for on-the-go use. Wherever you need it, Flushmaster goes with you.
Key Features:
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Compatible with All Major Outboard Brands (Mercury, Yamaha, Suzuki, Honda)
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IP67 Waterproof & Hurricane-Tested for ultimate durability
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Effortless Flushing with quick-connect fittings that replace factory ports
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Customizable System to fit your boat setup, whether for single or multi-engine boats
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Portable & Flexible—runs on AA batteries
Protect your engine faster, smarter, and safer. Order your Automated Outboard Flushing System today and say goodbye to the frustration of manual flushing.
Product Patented
Why Proper Flushing is Crucial for Your Outboards.
Real problems.
Real solutions.
Watch and see why our products are the future of outboard flushing — and why you’ll want to make the switch today.
Saves Time
Portable, Battery-operated
Proper Maintenance
Creates Opportunity
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.
Free Domestic Shipping
Get free domestic shipping on all orders – Protect your outboard with Flushmaster!
Satisfaction Guaranteed
The Flushmaster “Flush Motors, Not Time” 30-Day Performance Guarantee
Customer Service
We offer fast and reliable customer support to ensure our products fulfill your needs.
See It In Action
Common FAQs
I have 3 outboard motors, what do I need?
You would still select the 4-Outlet Flushmaster and using the instructions, set the unneeded outlet to 0 minutes. This will remove the outlet from the flushing cycle.
You still need to select your length of hose needed for your setup.
And (3) of the Flush Port Quick Connects for your outboard brand. Plus any accessories that make your setup more convenient for you.
What length hose do I need?
Use a dock line or rope to measure the distance from where you will place your Flushmaster device to your furthest away flush port connection.
How is it powered?
Flushmaster runs on (3) AA batteries. Come included.
Does it split water?
No! Flushmaster follows all manufacturer recommendations on flushing. 15 minutes each, individually. Flushmaster comes preprogrammed for 15 minutes each outlet.
Press Start, and Flushmaster cycles through each outlet one at a time for the set duration. After the cycle is complete it will shut off blocking the flow of water.