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Sea-Dog Line 420390-1 2 Position On-Off Toggle Switch

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

420390-1
06/01/2036 6:56 AM
Sale Price

$12.15

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 420390-1 is a heavy-duty marine toggle switch designed for reliable electrical control in boats and marine environments. This single-circuit switch features two positions (Off/On) with a normally-off configuration, providing straightforward control for your electrical accessories.

Key Features:

  • Single circuit, two-position operation (Off/On)
  • Stamped brass construction for corrosion resistance
  • 15 amp capacity at 12V DC
  • 3/8" diameter x 1" length shaft for secure mounting
  • Normally-off configuration for safety
  • Marine-grade materials for harsh saltwater environments

This toggle switch is ideal for controlling lights, pumps, fans, and other 12-volt accessories on your boat. The durable brass construction ensures long-lasting performance even in corrosive marine conditions.

Products specifications

Shaft

3/8" x 1"

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Great prices. Great live customer service. Very pleased, will definitely order again.

fast and great pricing

Very pleasant.

I hope you're right about compatibility!!!!

Quick and easy

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Great pricing; easy to order.

Had instock, good price

Quickly received item. Exactly what I ordered and was best price out there. Will do business with them again.

It was quick and easy to purchase and very easy to find the item I was looking for

Purchased multiple times from autoplicity and I love it

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