Sierra 18-8114 Fuel Line Hose, 3/8 Inch x 31 Inch, Fuel Pump to Carburetor Connection for Mercruiser

The Sierra 18-8114 is a PTFE composite fuel line hose built to connect the fuel pump to the carburetor on Mercruiser engines. It is designed as a direct replacement for factory copper or steel tubing, giving you a flexible, corrosion-resistant alternative that is easier to route and install than rigid metal line. The hose measures 3/8 inch (9.5mm) in size and 31 inches long (plus or minus 1/4 inch), with a wall thickness of 3.2 millimeters for durability under fuel system pressure and vibration.

Each end is fitted for a secure, leak-resistant connection: one end terminates in a 5/8"-18 male inverted flare straight fitting, and the opposite end terminates in a 5/8"-18 male inverted flare fitting bent at 90 degrees, matching the factory fuel pump-to-carburetor routing. The hose is built and certified to SAE J1527 Type A1, the marine fuel hose standard covering fire resistance and permeation control for use in engine compartments. As with all Sierra parts, the 18-8114 is backed by Sierra's Industry Leading Customer Satisfaction Warranty, covering defects in workmanship and materials for the useful life of the product.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8114
• Connection Type: Fuel pump to carburetor connection
• Fuel Line Hose Size: 3/8 inch (9.5 millimeters)
• Hose Length: 31 inches (plus or minus 1/4 inch)
• Outside Diameter: 0.37 inches (9.5 millimeters)
• Nominal Wall Thickness: 3.2 millimeters
• End Fittings: 5/8"-18 male inverted flare, straight on one end, 90 degree on the opposite end
• Material: PTFE composite hose (replaces copper or steel tubing); copper, PTFE, and steel components
• Color: White
• Standard: SAE J1527 Type A1
• Fit Type: Universal fit
• Weight: 1 pound

Fitment

• Fuel pump to carburetor connection on Mercruiser engines

Replaces (OEM)

• Copper or steel fuel line tubing (3/8 inch)

Frequently Asked Questions

What is the Sierra 18-8114 fuel line hose used for? The Sierra 18-8114 connects the fuel pump to the carburetor, replacing the original copper or steel fuel line tubing with a flexible PTFE composite hose.

What size is the Sierra 18-8114 hose? It measures 3/8 inch (9.5 millimeters) in hose size and 31 inches long, plus or minus 1/4 inch, with a wall thickness of 3.2 millimeters.

What end fittings does the 18-8114 have? One end has a 5/8"-18 male inverted flare fitting installed straight, and the opposite end has the same 5/8"-18 male inverted flare fitting bent at 90 degrees.

Is the Sierra 18-8114 a direct replacement for copper or steel fuel line? Yes, it is designed to replace copper or steel tubing on the fuel pump to carburetor connection with a PTFE composite hose of the same fitting configuration.

What engines is the 18-8114 fuel line hose used on? This hose is used for the fuel pump to carburetor connection on Mercruiser engines and is otherwise a universal fit fuel line.

What material is the Sierra 18-8114 hose made from? The 18-8114 is a PTFE composite hose, with copper and steel used in its fitting components.

Does the Sierra 18-8114 meet any industry standards? Yes, the 18-8114 is built to SAE J1527 Type A1, the marine standard covering fuel hose fire resistance and permeation performance.

What is the difference between the Sierra 18-8114 and 18-8115 fuel line hoses? Both are PTFE composite hoses with the same 5/8"-18 fittings for fuel pump to carburetor connection, but the 18-8114 is 31 inches long while the 18-8115 is 25 inches long.

How much does the Sierra 18-8114 fuel line hose weigh? The Sierra 18-8114 weighs 1 pound.

Is the Sierra 18-8114 genuine Sierra or aftermarket? The 18-8114 is a genuine Sierra part, backed by Sierra's Industry Leading Customer Satisfaction Warranty covering defects in workmanship and materials for the useful life of the product.

What color is the Sierra 18-8114 hose? The Sierra 18-8114 fuel line hose is white.

Can the Sierra 18-8114 replace rigid metal fuel tubing? Yes, the 18-8114 PTFE composite hose is designed to replace copper or steel tubing while keeping the same 5/8"-18 inverted flare fitting connections.