Sea-Dog 520041-1 Machined Bronze Garboard Drain Replacement Plug, 1/2 Inch NPT

The Sea-Dog 520041-1 is a machined bronze replacement plug for garboard drain fittings, sized for a 1/2 inch NPT thread. It is sold as the plug only, giving boat owners an economical way to replace a worn, lost, or damaged garboard drain plug without buying a complete drain assembly or wrench. Bronze construction resists the corrosive effects of fresh and salt water exposure, making it suitable for use in the below-waterline garboard drain location where a dependable, watertight seal matters. The tapered NPT thread seats into the mating garboard drain body to seal the hull drain opening when the boat is in the water, and is removed to drain bilge water when the boat is out of the water or on a trailer. At 0.04 pounds, the plug is compact and lightweight, and its precision-machined threads are designed to thread smoothly into a standard 1/2 inch NPT garboard drain fitting for a secure fit. This replacement plug is compatible with Sea-Dog's Plugmate wrench system for installation and removal, and is intended for boat owners and marine service technicians maintaining or restoring garboard drain hardware. Because it is a genuine Sea-Dog part, it is manufactured to the same thread tolerances as the original equipment it replaces, helping ensure a proper watertight fit.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 520041-1
• Product Type: Garboard Drain Replacement Plug
• Material: Machined Bronze
• Thread Size: 1/2 inch NPT
• Weight: 0.04 pounds
• Standard Pack: 10 each
• UPC: 035514520027

Frequently Asked Questions

What thread size does the Sea-Dog 520041-1 garboard drain plug use? It uses a 1/2 inch NPT tapered thread, which seats into the mating garboard drain fitting on the hull to form a watertight seal.

Is the 520041-1 the plug only, or does it include a wrench? It is the replacement plug only; no wrench is included. Sea-Dog's separate 520045 Plugmate wrench is designed to install and remove this style of plug, and the 520045-1 wrench version comes with one of these plugs stored in its handle.

What material is the Sea-Dog 520041-1 plug made from? It is machined bronze, chosen for its resistance to corrosion in fresh and salt water marine environments.

How much does the 520041-1 replacement plug weigh? The Sea-Dog 520041-1 weighs 0.04 pounds.

What is a garboard drain plug used for? A garboard drain plug seals the below-waterline hull drain fitting while the boat is in the water and is removed to let bilge water drain out when the boat is out of the water or on a trailer.

Will the 520041-1 fit any garboard drain fitting? It is sized to a 1/2 inch NPT thread, so it fits garboard drain fittings machined to that same 1/2 inch NPT thread size.

Is this a genuine Sea-Dog part or an aftermarket copy? The 520041-1 is a genuine Sea-Dog manufactured replacement plug, not a generic aftermarket substitute.

What comes in the box with the Sea-Dog 520041-1? The package contains the machined bronze replacement plug itself; it does not include a wrench or the garboard drain body.

Does the 520041-1 corrode in salt water? Because it is machined bronze, the 520041-1 plug is built to resist the corrosive effects of both salt water and fresh water marine use.

Can I use the 520041-1 to replace a lost or damaged garboard drain plug? Yes, the Sea-Dog 520041-1 is intended specifically as a replacement plug for garboard drain fittings that need a new plug.