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Sea-Dog Line 321484-1 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

321484-1
07/14/2036 6:50 AM
Sale Price

$19.33

1 left at this price

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Usually delivered within 2 days

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Product Details

The Sea-Dog Line 321484-1 is a premium gas-filled lift spring designed for marine applications requiring smooth, controlled lifting assistance. This heavy-duty gas spring features advanced engineering to deliver reliable performance in demanding marine environments.

Key Features:

  • Gas-filled design provides consistent lifting force and controlled motion
  • Unique multi-lobe seal technology prevents gas leakage and extends 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 long-term reliability
  • Durable polymer end fittings provide secure mounting options

Ideal for hatches, lids, engine covers, and access panels on boats and marine vessels. The corrosion-resistant construction and quality materials make this lift spring suitable for saltwater and freshwater environments. Sea-Dog Line is a trusted name in marine hardware, known for manufacturing high-quality boat accessories that stand up to harsh marine conditions.

Products specifications

Approximate Stroke

8-1/8"

Compressed Measurement

12"

Cylinder Size

15mm

Diameter: Rod

6mm

Extended

20"

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