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Sea-Dog Line 351321L-1 Locking Diesel Deck Fill 1-1/2 Inch Hose 316 Stainless Steel

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

351321L-1
06/01/2036 1:33 PM
Sale Price

$108.02

3 left at this price

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sea-Dog Line 351321L-1 is a premium locking hose deck fill designed specifically for diesel fuel systems on boats and marine vessels. This security-enhanced deck fill prevents fuel theft with its integrated locking mechanism that causes the cap to spin freely when locked, making unauthorized removal impossible without the included keys.

Key Features:

  • Investment cast 316 stainless steel construction provides superior corrosion resistance and long-term durability in harsh marine environments
  • Locking feature with spinning cap prevents fuel theft and tampering
  • Color-coded with international diesel symbols for easy deck fill identification
  • 1-1/2 inch hose connection with 11-1/2 NPSM straight cap threads
  • Includes two keys and cap attachment cable for security and convenience
  • Simple unlock operation: turn key until keyhole aligns with cap tabs
  • 3-1/4 inch flange diameter for secure deck mounting

Installation: Installs with three #10 flat head fasteners (not included). The deck fill features a straightforward mounting design with pre-drilled holes for quick and secure installation on your boat deck.

This professional-grade deck fill is ideal for sailboats, powerboats, and other marine vessels requiring secure diesel fuel filling access. The investment cast construction ensures precision fit and reliable performance season after season.

Products specifications

Fastener Size

#10 FH

Package

Card

these guys are fast and got the best prices i will be dealing with them again!! ;)

Thanks

Wow!!! This could easily be the the fastest and most smooth online transaction I have ever made. Great price and FAST shipping. Will def do business again. Thank you!! <br>Brad

So far so good

thanks

Shipping is too expensive.

Easy to find parts.

google shopping

Great product. Good communication and customer service!!!

I just received my order 7260 very quickly and it was as I had ordered............very easy to order and would do business with them again and I also will recommend them to others.

Best Price, Fast shipping, couldn't ask for anything more.

ok at first I didn't think it would work it did and iam very pleased

Great Service

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