Seachoice 18401 Outboard Flush Kit — OMC Outboard Engines
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Keep Your OMC Outboard Protected After Every Saltwater Run
The Seachoice 18401 Outboard Flush Kit is purpose-built for OMC outboard engines, giving you a permanent, always-ready flushing solution that snaps on in seconds. The slide valve mounts directly to the engine and stays there, so there’s no setup required between uses — just connect your hose and flush. An O-ring seal ensures a tight, leak-free fit every time.
What’s Included
- Slide valve (mounts permanently to engine)
- Quick connect fitting
Key Features
- OMC-specific fit — designed for OMC outboard engines for a precise, secure connection
- Permanent slide valve — stays mounted on the engine so it’s always ready when you need it
- Quick-connect design — attaches to a standard garden hose in seconds
- O-ring sealed — reliable, leak-free connection during every flush
Compatibility
Designed specifically for OMC outboard engines. For Mercury, Mariner, Yamaha, and Suzuki outboards, see the Seachoice 18411 Outboard Flush Kit. For a universal earmuff-style option that fits most outboards, consider the Seachoice ProFlo Universal Round Motor Flusher or the Seachoice ProFlo Universal Rectangular Motor Flusher.
Parts Desk Insights
This kit is the right choice for any OMC outboard that runs in saltwater. The permanent slide valve is the key advantage — once it’s installed, flushing becomes a 30-second habit rather than a chore that gets skipped. Best practice is to flush for at least 5–10 minutes at idle after every saltwater outing to clear salt from the cooling passages. If you’re unsure whether your engine uses the OMC fitting or the Mercury/Yamaha/Suzuki fitting, check your engine’s flushing port before ordering — the two kits are not interchangeable.
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.