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Sea-Dog Line 321474-1 Gas Filled Lift Spring with Multi-Lobe Seal

Manufacturer

Sea-Dog Line

<h3>About Sea-Dog Line</h3><p>Few names in the marine industry carry as much history as <strong>Sea-Dog Line</strong>. Founded in 1923 and headquartered in Everett, Washington, Sea-Dog has spent over a century engineering and supplying dependable hardware for boaters, riggers, and marine professionals. Whether you are outfitting a small fishing boat or a serious offshore vessel, Sea-Dog's expansive catalog — spanning more than 2,400 products — is built around one principle: hardware that holds up when it matters most.</p><h3>A Century of Marine Innovation</h3><p>Sea-Dog Line began as a focused marine rigging and hardware supplier, and over the decades grew into one of the most comprehensive sources for anchoring, docking, boarding, and boat-management equipment in the industry. Their product line has expanded to include antenna accessories, trailer hardware, boat hooks, cabinet and hatch fittings, chain and rigging components, and a wide range of electrical accessories — all engineered to withstand the corrosive, high-stress environment of the marine world.</p><p>What sets Sea-Dog apart is a commitment to manufacturing quality that boat owners can rely on season after season. Their hardware is designed for real-world marine use, meaning saltwater resistance, UV stability, and structural durability are never afterthoughts.</p><h3>Marine Visibility & Windshield Systems</h3><p>One of Sea-Dog's highest-demand product areas is their line of <a href="/7549-sea-dog-line-windshield-washers-wipers-replacement-motors-201195">Windshield Washers, Wipers &amp; Replacement Motors</a>. Maintaining clear visibility on the water is a safety-critical function, and Sea-Dog supplies a broad assortment of wiper blades, washer systems, and complete replacement assemblies designed to fit a wide variety of marine windshield configurations. For boaters who need a direct drive solution, Sea-Dog's dedicated <a href="/7549-sea-dog-line-windshield-wiper-motor-8824">Windshield Wiper Motors</a> offer reliable performance in wet, high-vibration marine environments — a category where component quality directly affects on-water safety.</p><h3>Cockpit Comfort & Functionality</h3><p>Beyond hardware and visibility systems, Sea-Dog also brings practical innovation to the helm and cockpit with their <a href="/7549-sea-dog-line-cockpit-fillet-tables-200274">Cockpit &amp; Fillet Tables</a>. These tables are designed to maximize usable space aboard, whether you are prepping a catch, serving guests, or simply organizing gear. Sea-Dog's tables reflect the same build philosophy as all their hardware: functional, durable, and thoughtfully designed for the marine setting.</p><h3>Why Boaters Trust Sea-Dog Line</h3><ul style="list-style:disc"><li>Over 100 years of marine hardware expertise dating back to 1923</li><li>Headquarters in Everett, Washington, with a deep understanding of Pacific Northwest and offshore boating demands</li><li>A catalog of more than 2,400 products spanning virtually every marine hardware category</li><li>Products engineered for saltwater, UV exposure, and the vibration of on-water use</li><li>Trusted by recreational boaters, commercial operators, and marine riggers alike</li></ul><p>From rigging essentials to cockpit accessories and windshield systems, Sea-Dog Line remains one of the most complete and dependable marine hardware brands available today. Explore their full product range and find the right Sea-Dog components for your vessel.</p>

Part Number

321474-1
09/16/2036 6:03 AM
Sale Price

$23.40

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sea-Dog Line 321474-1 is a premium gas-filled lift spring engineered for marine applications requiring reliable, smooth-action support. This lift spring features a unique multi-lobe seal design that ensures long-lasting performance and prevents gas leakage in demanding marine environments.

Key Features:

  • Gas-filled lift spring provides consistent, controlled lifting force
  • Unique multi-lobe seal design for superior gas retention and extended service life
  • Heavy gauge steel body construction for maximum durability
  • Hard chromium plated shafts resist corrosion and reduce friction
  • Bronze bushings ensure smooth operation and wear resistance
  • Polymer end fittings provide corrosion resistance and flexible mounting options

Ideal for hatches, engine covers, storage compartments, and other marine applications where controlled lifting assistance is needed. The corrosion-resistant materials and robust construction make this lift spring suitable for the harsh saltwater environment.

Products specifications

Approximate Stroke

6.75"

Compressed Measurement

11"

Cylinder Size

15mm

Diameter: Rod

6mm

Extended

17"

The description for the product is wrong. This is an 8 bolt posi and you advertise 10 bolt. I have the product I wanted (8 bolt) bc I knew what part number I was looking for, but it's still confusing when the description says its 10 bolt.

Great service good product

Happy with everything

Ordering was easy

Great prices, fast delivery

Product description could use some better details

Pleased so far

A+++

Please indicate where your company is located to help calculate shipping time, thanks

5 minute ordering process, faster than going to the auto parts house. Everything went as Autoplicity indicated. I ordered on Saturday, order was processed on Monday, item was shipped on Wednesday(tracking info for UPS was emailed on Wednesday), item was r

Easy

Order was correct and came quicker than I expected, I will definitely use Autoplicity again.

Easy fast and good price

great prices

Lowest prices on Autometer gauges I found on the web. This was 1st purchase with Autoplicity and it was a pleasant suprise. Low prices and quick shipping.

Came fast and sounds great on my hx easy to install injen rd 1550p

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