Manufacturer
<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>
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The Sea-Dog Line 420350-1 is a heavy-duty three-position ignition key switch designed for marine applications. Constructed from durable stamped brass for corrosion resistance in harsh saltwater environments, this switch provides reliable OFF, IGNITION, and START functions for boat ignition systems.
Key Features:
This ignition switch is ideal for replacing worn or damaged marine ignition switches on boats, personal watercraft, and other 12-volt marine applications. The brass construction ensures long-lasting performance in wet and corrosive marine environments, while the robust electrical ratings handle typical starting system loads.
No
1-1/8" Max
3 Screw
Quick and easy
Daniel
Quick easy
paul patrick
good price
adrian
So far so good
MAJ
Was in a bind to get parts in. Autoplicity helped relieve the stress with great customer service and fast processing. I received my items within two days! Thanks for great customer service Autoplicity!
Bdesh
easy ordering
Cassie
Found the K&N filter for my 2012 Acura TL at Autoplicity for the best price and delivery took about 2 business days. Can't ask for more.
ssulliv
This is my first purchase. So far, it's going well.
Walt Feyling
Smooth and inexpensive!
Chris Janchan
So far so good!
Brian Easterling
Great customer service. My product came quickly and just as described. Can't beat the prices anywhere on the internet, I looked for 2 months before buying. Thanks!
JoshKnorr
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Mark Stone
great experience, great prices. Although, it would be nice to have a description listed of the part numbers i ordered.
Steve
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