Lewmar 66840079 Chain Stopper For 10MM – 3/8 Chain

Original price was: $163.99.Current price is: $88.35.

16 in stock

SKU: 1002090 Categories: ,

Secure your anchoring setup with confidence using this robust chain stopper designed specifically for 10mm or 3/8-inch chains. Built to handle the rigors of marine environments, it locks the chain firmly in place once your anchor is set, preventing unwanted slippage during rough seas or sudden wind shifts. Boaters who prioritize reliability swear by its straightforward design that integrates seamlessly with most windlass systems.

Imagine dropping anchor after a long day on the water, knowing your chain won’t creep forward—no more midnight checks or frayed nerves. This stopper takes the guesswork out of chain management, letting you focus on the horizon.

Standout Features for Everyday Boating

  • Precision Fit: Tailored for 10mm (metric) or 3/8-inch (imperial) chains, ensuring a snug hold without damaging galvanization.
  • Durable Construction: Crafted from high-grade materials resistant to saltwater corrosion, UV exposure, and heavy loads—tested in real-world conditions from coastal cruising to offshore passages.
  • Easy Release Mechanism: Quick-action toggle allows smooth chain payout when retrieving anchor, minimizing deck clutter and hassle.
  • Compact Profile: Low-profile design mounts flush to your deck, preserving that sleek yacht aesthetic while maximizing space.
  • Universal Compatibility: Works hand-in-hand with popular windlasses, ideal for bow roller setups on sailboats, powerboats, or catamarans.

Why This Chain Stopper Elevates Your Anchoring Game

Unlike basic alternatives that loosen under tension, this stopper provides bombproof security. It distributes load evenly across the chain link, reducing wear on your windlass gypsy and extending the life of your entire ground tackle system. Skippers report fewer chain jams and more peaceful nights at anchor—essential for family outings or solo adventures.

In choppy conditions, where chain catenary can fail, this device shines by maintaining position without relying solely on your windlass brake. It’s a small addition with outsized impact, often overlooked until you’re swinging in a blow.

Simple Installation and Pro Tips

Mounting is a breeze—drill four holes, secure with bolts, and align with your chain path. No special tools required, and it bolts directly to fiberglass, aluminum, or teak decks. For best results:

  1. Position it 12-18 inches aft of your windlass for optimal chain flow.
  2. Use marine-grade sealant on fasteners to thwart leaks.
  3. Test under moderate load before your next voyage.

Pro tip: Pair it with a snubber for dynamic loads in high winds—your chain and nerves will thank you.

Keep It Performing Like New

Routine care is minimal: Rinse with fresh water after each saltwater dunk, inspect the pawl for debris, and lubricate pivot points annually with a marine grease. Avoid harsh chemicals that could compromise the finish. With proper upkeep, it’ll outlast multiple seasons of hard use.

Frequently Asked Questions

What chain sizes is this stopper compatible with?

It’s engineered for 10mm (short link or calibrated) or 3/8-inch BBB/proof coil chains, providing a secure fit without slippage.