Perko Water Deck Fill Cap – Black
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Perko Water Deck Fill Cap – Black
A replacement cap for Perko water deck fill fittings, keeping your freshwater fill port sealed and protected when not in use. The black finish suits dark-trimmed boats and blends with most deck hardware. Designed as a direct replacement for the original cap on compatible Perko water fill fittings.
Key Features
- Replacement cap for Perko water deck fill fittings
- Black finish — suits dark-trimmed boats and black deck hardware
- Keeps the fill port sealed and protected from water intrusion and debris
- Lightweight and purpose-built for a secure, flush fit on compatible Perko fittings
Parts Desk Insights
Best use case: This cap is the right choice when your original Perko water fill cap has been lost, cracked, or damaged and you need a direct replacement. It’s a small part that makes a big difference — a missing or ill-fitting cap can allow water, dirt, or fuel vapours to enter the fill port. Confirm your existing fitting is a compatible Perko water deck fill before ordering. If you’re looking for deck plate keys or access port tools, see the Sea-Dog Adjustable Bronze Deck Plate Key or the Perko Adjustable Deck Plate Key.
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.