Sierra Cable Boot 18-4455-1, Self-Adhesive Motor Well Boot for 4 1/2 Inch Hole, Cable and Fuel Line Pass-Thru

The Sierra Cable Boot 18-4455-1 is a self-adhesive motor well boot designed to provide a secure, organized pass-thru point for control cables, fuel lines, and wiring routed through a boat's transom or motor well. It is sized for a 4 1/2 inch hole, making it a direct fit replacement for that opening size when reorganizing or sealing a cable and hose pass-through. The boot mounts using a self-adhesive installation, allowing it to be applied directly to the mounting surface without additional hardware.

This boot helps keep multiple cables, fuel lines, and wires bundled together as they pass through the hull or motor well, reducing chafe, movement, and disorganized routing. It measures 4.5 inches by 4.5 inches, matching the 4 1/2 inch hole it is built for. Sierra also offers a companion boot sized for a 3 inch hole and a handle-only accessory, so boat owners with a different hole size or an existing boot that needs a new handle have matching options within the same family.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-4455-1
• Hole Size: 4 1/2 inches
• Product Dimensions: 4.5 inches L x 4.5 inches W
• Installation Type: Self-Adhesive
• Weight: 0.09 pounds
• UPC: 808282386351
• Package Quantity: 1

Fitment

Fits a 4 1/2 inch mounting hole for motor well cable and fuel line pass-thru applications.

Frequently Asked Questions

What hole size is the Sierra Cable Boot 18-4455-1 designed for? It is built for a 4 1/2 inch hole, matching its 4.5 inch by 4.5 inch overall size.

How is the 18-4455-1 boot installed? This cable boot uses a self-adhesive installation, so it mounts directly to the surface around the pass-thru hole without extra fasteners.

What is this boot used for? The Sierra Cable Boot 18-4455-1 provides a secure, organized pass-thru for control cables, fuel lines, and wiring routed through a motor well or transom opening.

Does Sierra make a version of this boot for a smaller hole? Yes, Sierra also offers 18-4454 for a 3 inch hole, which is a separate part number from the 4 1/2 inch 18-4455-1 covered here.

Can I buy just the handle for this cable boot separately? Yes, a handle-only option (18-4901) is available separately from the full 18-4455-1 boot.

How much does the 18-4455-1 cable boot weigh? It weighs 0.09 pounds.

What are the dimensions of the 18-4455-1 boot? The boot measures 4.5 inches by 4.5 inches, sized to cover a 4 1/2 inch hole.

Will this boot fit a 3 inch cable pass-thru hole? No, the 18-4455-1 is sized specifically for a 4 1/2 inch hole; a 3 inch hole requires the separate 18-4454 part instead.

Can multiple cables and fuel lines pass through one 18-4455-1 boot? Yes, it is designed to organize and pass through multiple cables, fuel lines, or wires through a single motor well opening.

Is the Sierra 18-4455-1 boot genuine Sierra equipment? Yes, this is a genuine Sierra branded cable boot, part number 18-4455-1.