Seachoice ProFlo Universal Rectangular Motor Flusher — 50-18313
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You have 30 days to request a return. All sale items are final sale.
Seachoice ProFlo Universal Rectangular Motor Flusher — 50-18313
Keep your outboard or I/O engine clean and corrosion-free with the Seachoice ProFlo Universal Rectangular Motor Flusher. Connecting to a standard garden hose, it delivers a thorough flush of salt, silt, sand, and other contaminants from the engine’s cooling system after every outing — one of the most effective habits for extending engine life.
Key Features
- Rectangular cup design fits outboard and I/O engines with rectangular water inlets
- Flexible rubber cups create a reliable seal against the engine’s water intake
- Connects to any standard garden hose — no adapters required
- Removes salt, silt, and sand from the cooling system after every use
- Helps prevent clogging and internal corrosion in cooling passages
Compatibility
Suitable for use with most outboard motors and inboard/outboard (I/O) engines. The rectangular cup design is particularly suited to engines with rectangular water inlet openings. Verify your engine’s water inlet shape and configuration before ordering.
Parts Desk Insights
Best use case: The rectangular cup flusher is the right choice for engines where the round cup design doesn’t seat properly — common on many larger outboards and some I/O configurations with rectangular intake openings. If you’re unsure whether your engine needs a round or rectangular flusher, check the shape of the water inlet on the lower unit or gearcase. Saltwater boaters should flush after every use without exception — salt crystallization in cooling passages is a leading cause of overheating and premature engine failure. At 503g, this is a practical dock or garage tool that pays for itself quickly in avoided repair costs.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.