Sierra 18-8055 Brass Hose Barb - Replaces Mercury 22-63187, 5/16 Inch Barb x 1/4 Inch NPT

The Sierra 18-8055 is a brass hose barb fitting used to connect fuel line to a primer bulb or fuel connection on outboard motor fuel systems. It features a 5/16 inch barb end for the hose side and a 1/4 inch NPT male thread on the fitting side, allowing a secure, leak-resistant connection between a barbed fuel hose and a threaded fuel component. The fitting is machined from brass with a gold-tone finish for corrosion resistance in a marine fuel-system environment.

This part is a direct equivalent to Mercury Marine part number 22-63187, making it a straightforward replacement when an original fitting has worn, cracked, or stripped threads. It is sold as a single hose barb fitting measuring 5 x 3 x 1 inches and weighing 0.07 pounds, and is built to Sierra's standard marine parts quality.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8055
• Barb Size: 5/16 inch
• Thread Size: 1/4 inch
• Thread Type: NPT
• Connector Type: Barb, Male
• Material: Brass
• Color: Gold
• Exterior Finish: Machined
• Item Dimensions: 5 x 3 x 1 inches
• Weight: 0.07 pounds
• Unit Count: 1

Fitment

Fits Mercury Marine applications using the 22-63187 fuel fitting.

Replaces (OEM)

• Mercury Marine 22-63187

Frequently Asked Questions

What does the Sierra 18-8055 hose barb replace? It is a direct equivalent to Mercury Marine part number 22-63187, so it can be used wherever that original fitting is called for.

What size hose and thread does this fitting use? The 18-8055 has a 5/16 inch barb end for the fuel hose and a 1/4 inch NPT male thread on the opposite end.

What is the 18-8055 fitting made of? It is machined brass with a gold-tone finish, chosen for corrosion resistance in marine fuel systems.

Is the 18-8055 a male or female connector? The NPT thread end of the Sierra 18-8055 is male.

How much does the Sierra 18-8055 hose barb weigh? It weighs 0.07 pounds.

What are the dimensions of this hose barb? The 18-8055 measures 5 x 3 x 1 inches as packaged.

How many fittings come in a package? The Sierra 18-8055 is sold as a single hose barb fitting, unit count of 1.

Is this a genuine Sierra part or a generic aftermarket fitting? Part number 18-8055 is a genuine Sierra-manufactured fitting, engineered as an equivalent to the Mercury Marine 22-63187 rather than a generic substitute.

What is this fitting typically used for? It is used to connect a barbed fuel hose to a threaded fuel line component, such as a primer bulb connection, on an outboard fuel system.

How is the 18-8055 different from the 18-8054? The 18-8055 has a 1/4 inch NPT thread, while the related 18-8054 uses a 1/8 inch NPT thread; both share the same 5/16 inch barb size.