Marinco 157AY Standard "Y" Adapter Dock Side Male 30A 125V Locking to Boat Side Female 2-30A/125V Locking With Sealing Collar System
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Marinco 157AY Standard “Y” Adapter lets you connect dock-side shore power to two boat-side inlets from a single dock receptacle. It’s built for wet-location use and uses a locking, sealing collar system to help provide a secure, protected connection.
Key Features
- Dock-side male locking plug to boat-side female locking connectors
- Includes sealing collar system for enhanced wet-location protection
- Configured as a “Y” adapter to split power from one dock receptacle to two boat inlets (2x 30A)
Intended Use
- Shore power connection accessories for boats that have two boat-side 30A 125V locking inlets
- Dockside-to-boat inlet power routing when using a Marinco-style Y adapter
Product Details
- SKU: 69-157AY
- Adapter type: Standard “Y” Adapter
- Dock Side (Male): 30A 125V, locking
- Boat Side (Female): (2) 30A 125V, locking
- Sealing collar system: Included (female has sealing collar system)
- Use location: For use in wet locations
- Variant barcode: 093344011405
- Variant weight: 2926 GRAMS
Parts Desk Insights
Best Use Case: Use this adapter when you need to split a single 30A 125V dockside locking outlet to two separate 30A 125V boat-side locking inlets while maintaining a protected connection in wet locations.
Common Issues: Most connection problems come from not fully seating the locking plug(s) and ensuring the sealing collar area is properly engaged. Before use, check that both boat-side connectors are aligned and fully locked, and confirm the adapter is matched to the correct dock/boat inlet locking configuration.
Related Products & Accessories
- Marinco Shore Power Adapters (Y Adapters) - Browse the Shore Power category for other Marinco Y-adapter configurations if your dockside and boat-side inlets differ.
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.