Outboard Engine Flush Adapter with Quick-Connect Garden Hose Fitting
Model A
$13.00
Skip to product information
Outboard Engine Flush Adapter with Quick-Connect Garden Hose Fitting
$13.00
Flush It. Protect It. Make It Last.
Saltwater, silt, and mineral deposits quietly corrode your outboard motor from the inside out — every time you forget to flush. The RIVOWON Outboard Engine Flush Adapter makes post-trip flushing so fast and effortless that you’ll never skip it again. Connect, flush, done. Your engine will thank you for years.
🔌 2 Models to Fit Your Motor
- Model A — fits a wide range of standard outboard motor housings. Suited to most common motor profiles.
- Model B — designed for motors with a different housing geometry. Check your motor’s flushing port profile before selecting.
- Both models feature a standard garden hose thread interface — connect your hose in seconds, no adapters needed.
💧 Deep-Flush Clean – Salt, Silt & Residue Out
- Circulates clean freshwater through the entire cooling circuit, flushing out salt crystals, silt, and residual contaminants after every trip.
- Regular flushing prevents impurity buildup, dramatically reduces internal corrosion risk, and extends engine service life.
🔒 Secure, Slip-Free Fit
- Snug housing contact design locks firmly against the outboard motor’s cooling water intake — maintains a stable seal during flushing and won’t slip off mid-flow.
- No leaks. No interruptions. Just a clean, complete flush every time.
⚡ Solo Operation – No Tools Required
- No wrenches, no complicated setup — one person can complete the entire flushing process in minutes.
- Simply attach the adapter, connect the hose, run the motor, and flush. Quick, easy, effective.
🚣 Wide Motor Compatibility
- Compatible with many mainstream outboard motors across multiple brands and displacement sizes.
- Ideal for fishing boats, inflatable boats, and yachts — any vessel with an outboard motor that needs regular maintenance.
Five minutes of flushing. Years of protection. That’s RIVOWON.
You may also like
D
Ear muffs for outboards Built tough. Works great.
K
These are great. They do what they’re supposed to do.
N
As described Works well
R
For the price this worked great on my Mercury 225HP engine in my driveway. I was able to test my motor after the boat sat for a year while we moved. The only thing that I experienced was a little leakage between the muffs and the motor intake area, but it held well enough to do the job. Very happy with the product.
J
Fits Well Fit my 2023 Yamaha 150 perfect
J
Helpful for boat motor Worked well to check boat motor.
S
Works better than the other brand I have!
B
I bought these after purchasing a cottage that came with a couple of boats left behind by the previous owner. One has an 85 HP outboard, and the other is a little 5 HP Mercury. Before taking either one out on the lake, I needed a way to supply cooling water while getting them running and checking everything over.I've used more expensive versions before, but these worked just as well for about half the price. They sealed tightly over the water intakes, provided a steady flow of water, and kept both engines cool while they were running.For the money, they're hard to beat. I'd buy them again.
S
Would purchase again Great item, exactly as described and fast shipping!
M
There are less expensive ones that work just as well. Works fine. Flushes well.
A
I recently purchased the Universal Rectangular Outboard Motor Water Flusher for my marine boat, and I am extremely satisfied with its performance. This engine flusher is designed to effortlessly flush the outboard motor with water, ensuring optimal functionality and longevity.One of the standout features of this water flusher is its universal design.
J
Good quality Works well on my 30 horse Merc,
J
just what i needed , thanks as described !
J
smells great i love the smell and it last havent used it yet but it will work
H
Arrived quickly and worked as should .
R
This unit is so easy to use.
D
It does exactly what you need it to do.Slide it on, hook up the hose, turn on the water. Simple as that.Good quality.It really is a simple item and not much to say about it.It works and will save your motor from burning up.