Lewmar Lever Chain Stopper – 316 Stainless, 3/8" (10mm) Chain | 239-66840079
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Lewmar Lever Chain Stopper – 316 Stainless, 3/8" (10mm) Chain | 239-66840079
Protect your windlass and keep your anchor rode locked securely in place with this Lewmar lever-style chain stopper. Built from 316 stainless steel with a Safe Working Load that exceeds the rated SWL of the chain itself, it’s engineered to handle the sustained loads that windlasses simply aren’t designed to bear. The lever mechanism makes it fast and easy to lock and release the chain — no fumbling with cleats or rope tails when you’re ready to deploy or retrieve.
Compatible Applications
- Fits 3/8" (10mm) anchor chain
- Designed for use with windlass-equipped boats running 3/8" chain
- Mounts on deck between the windlass and bow roller
Key Features
- 316 stainless steel construction for maximum strength and saltwater corrosion resistance
- Lever-action design for fast, one-handed locking and release
- Safe Working Load exceeds the SWL of the chain — the chain is the weak point, not the stopper
- Prevents windlass from bearing sustained anchor loads while at rest
- Sized for 3/8" (10mm) chain
Parts Desk Insights
A chain stopper is one of the most important — and most overlooked — accessories in a windlass setup. Windlasses are built to raise and lower the anchor, not to hold the static load of the boat riding at anchor for hours on end. Without a stopper, that sustained tension runs through the windlass motor and gypsy, accelerating wear and risking failure at the worst possible time. The Lewmar lever version is a step up from basic stoppers — the lever mechanism is faster and more positive than a simple clamp, which matters when conditions are changing quickly. This stopper is sized for 3/8" (10mm) chain, which pairs with Lewmar’s V2 Vertical Windlass with 3/8" Chain. For a budget-friendly alternative, see the Sea Dog Chain Stopper for 5/16"–3/8" Chain. Round out your anchoring system with a Sea Dog Anchor Swivel for 3/8" Chain.
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.