321825-1 - Seadog Sea-Dog Stainless Steel Chain Stopper - 5/16" | Aztek Computers
29+Years
SKU: ZB3QHM5TZN |  Mfg. Part: 321825-1  | UPC: 035514322140  |  0 Reviews  |     Share

321825-1 - Seadog Sea-Dog Stainless Steel Chain Stopper - 5/16" - 3/8"

2 Available
Condition: New

$76.53  $103.32
Free Shipping for this Item

Product Overview

Stainless Steel Chain Stopper - 5/16" - 3/8"

Chain Stoppers help prevent damage to the windlass and reduce the risk of accidental free fall of the anchor while under way. Chain Stoppers mount alone or inside most bow rollers and work with your anchor roller to take tension off your windlass. Chain and rope should be secured at anchor when your windlass is not in use to avoid high loads the windlass was not designed for. 321820 fits chain sizes 3/16" - 1/4". 321825 fits chain sizes 5/16" - 3/8". Constructed of corrosion resistant formed 304 stainless steel.

Expert Overview

The Sea-Dog Stainless Steel Chain Stopper (part number 321825-1) is a component designed to secure anchor chains and mitigate potential damage to a vessel's windlass system. This device is constructed from corrosion-resistant 304 stainless steel and is engineered to accommodate chain sizes ranging from 5/16" to 3/8". Its primary function is to relieve tension on the windlass when the anchor is deployed or secured, preventing the windlass from bearing loads it was not designed to withstand. Additionally, it helps to reduce the risk of an anchor accidentally deploying while the vessel is underway. The chain stopper can be mounted independently or integrated within existing bow rollers, working in conjunction with the anchor roller to manage chain tension. This product is suitable for marine operations requiring a robust solution for anchor chain management and windlass protection.

Product Details

  • Manufacturer:
  • Model Number:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Country of Origin:
  • SeaDog
  • 321825-1
  • 035514322140
  • New
  • 1.38 lbs
  • 8 X 3 X 8
  • Sep 04, 2026
  • May 02, 2026
  • Thailand
Product Identifiers: Brand: Seadog • Part #: 321825-1 • UPC: 035514322140 • Category: Consumer Electronics

Frequently Asked Questions

What chain sizes is this stopper compatible with?

This Sea-Dog chain stopper is designed to fit chain sizes between 5/16" and 3/8". Another model, 321820, is available for chain sizes 3/16" to 1/4".

What material is the chain stopper constructed from?

The chain stopper is constructed from formed 304 stainless steel, which provides corrosion resistance suitable for marine environments.

What is the primary purpose of using a chain stopper?

The primary purpose is to prevent damage to the windlass and reduce the risk of accidental anchor free fall. It takes tension off the windlass when the anchor is secured or at rest, protecting the windlass from excessive loads.

Can this chain stopper be used with an existing bow roller?

Yes, this chain stopper can be mounted alone or inside most bow rollers. It is designed to work in conjunction with your anchor roller to manage chain tension.

321825-1 - Seadog Sea-Dog Stainless Steel Chain Stopper - 5/16" - 3/8"

Confirm you're human, then submit:

Reviews for Seadog 321825-1

$76.53