Sea-Dog 5215201 Rectangular Motor Flusher
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You have 30 days to request a return. All sale items are final sale.
Sea-Dog 5215201 Rectangular Motor Flusher helps you flush your outboard’s lower-unit cooling system with a simple garden hose connection—no tools required.
Key Features
- Simple garden hose connection, no tools required.
- Rectangular cups for use with larger outboards.
- Designed to help quickly flush away salt, sand, minerals, and other contaminates from the lower unit cooling system.
Engine Compatibility
- Outboard motor routine maintenance and winterizing (when using the engine out of the water)
- Flushing away salt, sand, minerals, and contaminates from lower-unit cooling systems
Product Details
- Sea-Dog Rectangular Motor Flush (Outboard Rectangular Motor Flusher).
- SKU/Model: 5215201 (listed with rectangular motor flush; also shown as 521520-1 in Sea-Dog catalog source).
- Cup/Body size (catalog dimension A): 10-3/16”.
- Standard pack: 1 ea.
Parts Desk Insights
Best Use Case: Great for seasonal maintenance and tune-ups when you need to run water through the lower-unit cooling system to help remove deposits and contaminants.
Common Issues: For a proper flush, align/fit the rectangular cups over the engine’s water intake so the connection creates the intended water flow; if flow seems weak, re-check cup placement and seating.
Related Products & Accessories
Browse related Engine Parts & Consumables to complete the installation.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.