Overview

The Attwood Marine 912021-7 is a replacement anti-glare lens for old-style 3900 Series pole lights and all-round light assemblies. It is used when the original globe is cracked, clouded, or missing and you want to restore the existing light rather than replace the full fixture.

This piece is part of the light assembly, so fit matters more than appearance alone. It matches the older 3900 Series anti-glare style, which makes it relevant for boats already rigged with that light base and pole setup.

It is a sensible match for owners maintaining an existing navigation light installation on a small fishing boat, runabout, or utility boat where the original Attwood 3900 Series hardware is still in service.

Key features

• Replacement anti-glare lens for old-style Attwood 3900 Series pole lights
• Used with existing all-round light assemblies instead of replacing the full pole light
• Fits marine setups that already use the older 3900 Series light configuration
• Useful when the original globe has become damaged, worn, or hard to see through
• Navigation light accessory format that helps keep an existing light assembly complete and serviceable

Compatibility and fit

This lens is tied to the old-style 3900 Series format, so it is best suited to replacement work on an existing Attwood assembly already on the boat. It is not a general-purpose globe for every pole light, and the series match should be checked against the light you have now.

For refit work, this part makes the most sense when the pole, base, and light body are still usable and only the lens portion needs replacement.

Installation and use

Replacement is straightforward when the existing light body is in good condition and the old lens is the only failed part. On boats exposed to salt spray, sun, and vibration, swapping a worn lens can be a practical way to keep an older navigation light setup in service without changing the rest of the assembly.