Seachoice Polycarbonate Deck Plate Key – Black, 3-3/8 in.
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Seachoice Polycarbonate Deck Plate Key – Black, 3-3/8 in.
A compact, purpose-built key for opening standard twist-lock and pry-up deck plates on fuel, water, and utility access points. Made from impact-resistant polycarbonate, this 3-3/8 in. key fits both 1-1/4 in. and 1-1/2 in. deck plates — the two most common sizes found on production powerboats and sailboats — so one tool handles virtually every deck fill on board.
- Polycarbonate construction — lightweight, non-sparking, and corrosion-proof; safe for use near fuel fills
- Dual-size fit — works with 1-1/4 in. and 1-1/2 in. deck plates
- 3-3/8 in. length — enough leverage to break a stiff or weathered cap loose without straining
- Black finish — low-profile appearance that blends with most deck hardware
- Compact size — stows easily in a tackle box, tool bag, or glove compartment
Parts Desk Insights
Best use case: This key is the right choice when you need a dedicated, non-metallic deck plate tool for a boat with fuel fills — the polycarbonate material is non-sparking, making it the safer option around gasoline deck fills compared to a metal key. It's also a smart backup to keep in a ditch bag or emergency kit since it covers the two most common deck plate sizes without adding weight or bulk.
Pair with: If your boat uses twist-lock deck plates, see the Seachoice Polypropylene Twist 'N' Lock Deck Plate or the Seachoice Polypropylene Pry-Up Deck Plate. For a stainless steel key option, consider the Seachoice Universal Non-Magnetic Stainless Steel Deck Plate Key & Tool. For deck fill hardware, browse the Seachoice Deck Mount Gas Fill Plate or the Perko Water Deck Fill Cap.
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.