Sea-Dog LED Utility Light 401321-1, White Delrin Housing with White Lens, 12V Surface Mount

The Sea-Dog LED Utility Light 401321-1 is a compact surface-mount light built for interior and utility lighting aboard a boat. It is constructed of injection molded Delrin, a material chosen for its strength, heat resistance, and dimensional stability, making it well suited to the vibration and temperature swings found in marine electrical and cabin spaces. This version features a white housing with a white lens, giving it a clean, low-profile appearance that blends into white gelcoat, panels, and trim.

Inside, the 401321-1 uses a low amp draw LED bulb running on a 12 VDC system, so it draws minimal current from the house battery while still providing usable light output. It mounts to a flat surface using four #6 flat head fasteners (fasteners are not included, so have a set of #6 FH screws on hand before installation). The mounting hole pattern is a 4-hole, 1-9/16 inch square spacing layout, and the overall footprint is a 2-3/16 inch square with a 1-3/4 inch lens diameter and an 11/16 inch overall height, so it fits into typical small utility light cutouts already common on many boats.

This light is sold as an individual unit and is a straightforward drop-in for anyone replacing an existing white-on-white Sea-Dog utility light or adding new interior lighting to a helm, cabin, storage locker, or engine compartment area where a compact 12V fixture is needed.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 401321-1
• Product Type: LED Utility Light
• Material: Injection Molded Delrin
• Housing Color: White
• Lens/Finish Color: White
• Total Width: 2-3/16 inches square
• Lens Diameter: 1-3/4 inches
• Mounting Hole Pattern: 4-hole, 1-9/16 inches square spacing
• Height: 11/16 inches
• Fastener Type: #6 flat head (FH), not included
• Voltage: 12 VDC
• Light Source: LED
• Weight: 0.055 pounds
• UPC: 035514403474
• OEM Equivalent Part Number: 726984

Replaces (OEM)

• 726984

Frequently Asked Questions

What is the Sea-Dog 401321-1? The Sea-Dog 401321-1 is a compact LED utility light with a white Delrin housing and a white lens, designed for surface mounting in boat interiors and utility areas.

What are the dimensions of this light? The 401321-1 has a total width of 2-3/16 inches square, a lens diameter of 1-3/4 inches, an overall height of 11/16 inches, and a 4-hole mounting pattern spaced 1-9/16 inches square.

What is the 401321-1 made of? It is constructed of injection molded Delrin, chosen for strength, heat resistance, and dimensional stability in a marine environment.

Are mounting screws included with this light? No, the Sea-Dog 401321-1 mounts with four #6 flat head (FH) fasteners that are not included, so these need to be purchased separately.

What voltage does this light run on? The 401321-1 operates on a 12 VDC marine electrical system and uses a low amp draw LED bulb.

How much does the 401321-1 weigh? This Sea-Dog LED utility light weighs 0.055 pounds.

Is there an OEM cross-reference number for this part? Yes, the Sea-Dog 401321-1 has an OEM equivalent part number of 726984.

Does the 401321-1 come in other colors? The 401321-1 specifically has a white housing with a white lens; Sea-Dog also offers this same style light with different housing and lens color combinations under other part numbers.

What light source does this fixture use? The 401321-1 uses an LED light source rather than an incandescent or halogen bulb, keeping power draw low.

Will this light fit a standard utility light cutout on my boat? The 401321-1 uses a 2-3/16 inch square footprint with a 1-9/16 inch square, 4-hole mounting pattern, which matches common small utility light cutouts, so measure your existing opening or fixture before ordering.

Is the 401321-1 a genuine Sea-Dog part? Yes, the 401321-1 is a genuine Sea-Dog LED utility light, not a generic aftermarket copy.