Sea-Dog Aluminum Lift Gate Butt Hinge, Left Side, 207730-1

The Sea-Dog 207730-1 is a left-side lift gate butt hinge built for boat and pontoon gates, doors, and hatches that need smooth, quiet operation. It is constructed of aluminum and uses nylon washers between the hinge leaves, which cushion movement and eliminate the metal-on-metal rattle and squeak common with lower-quality hinges. The hinge measures 2-1/2 inches (dimension A) with leaf dimensions of 1-1/4 inches by 1-1/4 inches (B and C), an overall dimension D of 2-3/4 inches, and a leaf thickness (E) of 1/8 inch. It installs with six #10 RH (round head) fasteners, which are not included and must be sourced separately.

This is the left-side version only. Sea-Dog also makes a matching right-side hinge under a different part number (207735-1) for the opposite side of the gate, so be sure to confirm which side you need before ordering. The hinge weighs 0.22 pounds and is finished in an unfinished aluminum silver appearance, making it a practical, corrosion-resistant choice for marine lift gates, storage doors, and pontoon boat gates where reliable, quiet operation matters over time.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 207730-1
• Material: Aluminum
• Side: Left
• Dimension A: 2-1/2 inches
• Dimension B: 1-1/4 inches
• Dimension C: 1-1/4 inches
• Dimension D: 2-3/4 inches
• Dimension E: 1/8 inch
• Fastener Type: #10 RH (round head), not included
• Weight: 0.22 pounds
• Finish: Unfinished
• Color: Silver
• Mounting Type: Door mount
• UPC: 035514207034

Fitment

Designed for left-side installation on lift gates, doors, and hatches; a separate right-side hinge (207735-1) is available for the opposite side.

Frequently Asked Questions

Which side does this hinge fit? The Sea-Dog 207730-1 is made specifically for the left side of a lift gate, door, or hatch. It is not reversible; the right-side version is a separate part, 207735-1.

What is the 207730-1 hinge made of? It is constructed of aluminum with nylon washers between the leaves, which allow quiet movement and smooth operation while resisting corrosion.

Are mounting fasteners included with this hinge? No. The 207730-1 installs with six #10 RH (round head) fasteners, which are not included and need to be purchased separately.

How much does the 207730-1 lift gate hinge weigh? This hinge weighs 0.22 pounds.

What are the dimensions of the Sea-Dog 207730-1 hinge? The hinge measures 2-1/2 inches overall (dimension A), with leaf dimensions of 1-1/4 inches by 1-1/4 inches (B and C), a dimension D of 2-3/4 inches, and a leaf thickness (E) of 1/8 inch.

What is this hinge used for? It is used as a butt hinge on boat and pontoon lift gates, doors, and hatches, providing the pivot point for the gate while keeping movement quiet.

Is there a right-side version of this hinge? Yes, Sea-Dog offers a matching right-side lift gate hinge under part number 207735-1 for the opposite side of the gate; it is a distinct SKU from the left-side 207730-1.

Why does this hinge use nylon washers? The nylon washers sit between the hinge leaves of the 207730-1 to reduce metal-on-metal contact, which cuts down on rattling and keeps the gate operating smoothly.

Is the Sea-Dog 207730-1 a genuine Sea-Dog part? Yes, it is manufactured by Sea-Dog under part number 207730-1 and is sold as a genuine Sea-Dog lift gate hinge, not a generic substitute.

What fastener size does the hinge require? The 207730-1 requires six #10 RH fasteners for installation; these are not supplied with the hinge.

Does the finish on this hinge resist corrosion? The 207730-1 has an unfinished aluminum finish in silver, which provides natural corrosion resistance suited to marine environments.