My Account
Shopping Cart

Sea-Dog Line 321474-1 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

321474-1
06/01/2036 3:45 AM
Sale Price

$18.68

1 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

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

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy