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Sea-Dog Line 321424-1 Gas Filled Lift Spring with Multi-Lobe Seal

Manufacturer

Sea-Dog Line

<p>For over a century, Sea-Dog Line has stood as a cornerstone of the marine hardware industry, delivering innovative solutions that meet the demanding needs of recreational and commercial boaters. Founded in the early 1920s by entrepreneur Hans "Action" Broson Sneve, the company began with a unique sales approach—showcasing marine hardware aboard a 55-foot cruiser that sailed from Alaska to Mexico. This hands-on philosophy continues to shape Sea-Dog's commitment to producing hardware that performs reliably in the harshest saltwater environments.</p><h3>Industry-Leading Marine Hardware Manufacturing</h3><p>Based in Everett, Washington, Sea-Dog Corporation operates a 75,000-square-foot warehouse stocking over 8 million parts and runs an injection molding facility with 16 machines producing more than 17 million components annually. The company's extensive product line spans anchoring systems, deck hardware, electrical components, plumbing fittings, and lighting solutions—all engineered with marine-grade materials like stainless steel, brass, and UV-resistant polymers. Sea-Dog's recognition as a multiple-time NMDA Supplier of the Year underscores the brand's excellence in both product quality and customer service, while their on-staff ABYC-certified marine technician provides invaluable installation and technical support.</p><h3>Premium Marine Components for Every Vessel</h3><p>Sea-Dog's <a href="/7549-sea-dog-line-windshield-washers-wipers-replacement-motors-201195">windshield washers, wipers, and replacement motors</a> deliver crystal-clear visibility during inclement weather, with both manual and electric options featuring corrosion-resistant stainless steel arms and UV-stable blades designed specifically for marine windshield applications. Their <a href="/7549-sea-dog-line-electric-horns-200351">electric horns</a> include the popular MaxBlast line, which passed rigorous 600-hour salt spray testing while meeting US Coast Guard COLREGS and ABYC standards for audible warning devices. For fuel and water system integrity, Sea-Dog's <a href="/7549-sea-dog-line-deck-fills-200307">deck fills</a> provide secure, leak-free access points constructed from durable stainless steel with snap-in designs that resist corrosion in saltwater environments.</p><p>When maneuvering in low-light conditions, Sea-Dog's <a href="/7549-sea-dog-line-docking-lights-200335">docking lights</a> offer bright LED illumination with minimal power draw, featuring injection-molded housings that withstand impacts and temperature extremes. Proper airflow is essential for preventing moisture buildup below deck, and Sea-Dog's <a href="/7549-sea-dog-line-hose-and-cowl-vents-200534">hose and cowl vents</a> deliver reliable ventilation with low-profile designs that include snap-in deck plates for bilge applications or dorade box compatibility for cabin use. Each product reflects Sea-Dog's century-long dedication to manufacturing hardware that recreational and professional mariners can trust, voyage after voyage.</p>

Part Number

321424-1
06/13/2036 4:09 PM
Sale Price

$17.79

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sea-Dog Line 321424-1 is a premium gas-filled lift spring designed for marine applications requiring smooth, controlled lifting assistance. This heavy-duty gas spring features a unique multi-lobe seal design that provides superior durability and reliable performance in harsh marine environments.

Key Features:

  • Gas-filled lift spring with unique multi-lobe seal for enhanced durability and leak resistance
  • Heavy gauge steel body construction for maximum strength and longevity
  • Hard chromium plated shafts resist corrosion and provide smooth operation
  • Bronze bushings ensure low friction and extended service life
  • Polymer end fittings for secure mounting and reduced noise
  • Ideal for hatches, storage compartments, engine covers, and access panels

This gas spring provides consistent lifting force throughout its range of motion, making it easier to open and hold heavy lids and hatches in place. The corrosion-resistant construction ensures reliable performance in saltwater and freshwater environments.

Products specifications

Approximate Stroke

3"

Compressed Measurement

7"

Cylinder Size

15mm

Diameter: Rod

6mm

Extended

10"

To soon to tell

Excellent. So far. Hope to get the batteries

Great service. Thanks

Ordered a boat seat cooler. The picture in the description appeared larger than the actual size. I could tell as soon as I received it that it wasn't going to be the size I needed. I contacted them to ask if I could return it and they responded quickly with approval for a return even though I noticed on my receipt that it wasn't an item that you could return. Overjoyed they worked with me on this!

Easy to find what I was looking for.

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