Sea Dog 304 Stainless Steel Chain Stopper – 5/16" to 3/8" Chain | 354-3218251
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You have 30 days to request a return. All sale items are final sale.
Sea Dog 304 Stainless Steel Chain Stopper – 5/16" to 3/8" Chain
Protect your windlass and keep your anchor secure at rest with this formed 304 stainless steel chain stopper from Sea Dog. Designed to take the load off your windlass when the anchor is deployed and the boat is at anchor, it prevents the high static loads that windlasses aren't built to handle — and eliminates the risk of accidental anchor free-fall while underway.
Compatible Applications
- Fits chain sizes 5/16" to 3/8"
- Mounts alone or inside most bow rollers
- Works in conjunction with your existing anchor roller setup
Key Features
- Formed 304 stainless steel construction for strength and corrosion resistance
- Prevents accidental anchor free-fall while underway
- Protects windlass from high static loads it wasn't designed to bear
- Mounts independently or inside most bow rollers
- Works with your anchor roller to take tension off the windlass
Parts Desk Insights
A chain stopper is one of the most overlooked accessories in a windlass setup — and one of the most important. Windlasses are designed to raise and lower the anchor, not to hold the load of the boat riding at anchor for hours. Without a chain stopper, that sustained tension runs through the windlass motor and gypsy, accelerating wear and risking failure. This is a must-have addition for any boat with a windlass, and it's especially valuable on vessels that anchor frequently or in tidal areas with surge. If you're building out a complete anchoring system, pair this with a compatible Lewmar windlass and a SeaDog Anchor Swivel for a clean, protected setup.
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.