Sierra 18-7047 Needle Valve for Honda Outboard Carburetors, Stainless Steel

The Sierra 18-7047 is a replacement needle valve for Honda outboard carburetors, machined from stainless steel for corrosion resistance in the marine environment. The needle valve regulates fuel flow into the carburetor float bowl, closing off supply as the float rises and opening again as fuel is consumed, which keeps the fuel level in the bowl steady for consistent engine performance. A worn, pitted, or sticking needle valve is a common cause of flooding, rough idle, hard starting, and fuel leaking from the carburetor vent, so replacing it is a routine part of a carburetor rebuild or fuel system service.

This unit has a threaded inlet connection and an NPT outlet connection with two ports, and it is sized as a small precision component measuring 0.39 x 0.39 x 0.39 inches. Sierra manufactures this part to meet or exceed the specifications of the original equipment it replaces, and Sierra supplies many OEM engine manufacturers and boat builders with parts on a daily basis. It ships as a single needle valve assembly ready to install into a compatible Honda outboard carburetor.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7047
• Product Type: Needle Valve Assembly
• Material: Stainless Steel
• Exterior Finish: Machined
• Inlet Connection Type: Threaded
• Outlet Connection Type: NPT
• Number of Ports: 2
• Item Dimensions: 0.39 x 0.39 x 0.39 inches
• Weight: 0.01 pounds
• UPC: 808282302498

Fitment

• Honda outboard carburetors

Frequently Asked Questions

What does the Sierra 18-7047 needle valve do? It regulates fuel flow into the carburetor float bowl on a Honda outboard, closing as the float rises to shut off supply and opening again as fuel is drawn out, which keeps the fuel level in the bowl consistent.

Is the 18-7047 needle valve compatible with my outboard? The Sierra 18-7047 is built for Honda outboard carburetors; check that your carburetor accepts a needle valve with a threaded inlet and NPT outlet before ordering.

What material is the 18-7047 needle valve made from? It is machined from stainless steel, which resists corrosion from fuel and the marine environment.

How big is the Sierra 18-7047 needle valve? The needle valve measures 0.39 x 0.39 x 0.39 inches, a small precision-machined component sized to fit inside the carburetor float bowl assembly.

How much does the 18-7047 needle valve weigh? The Sierra 18-7047 weighs 0.01 pounds.

What symptoms indicate my Honda outboard needs a new needle valve? A worn or sticking needle valve on a Honda outboard carburetor commonly causes flooding, rough idle, hard starting, or fuel leaking from the carburetor vent.

Does the 18-7047 meet OEM specifications? Sierra manufactures the 18-7047 needle valve to meet or exceed the specifications of the original equipment part it replaces.

What connection types does the 18-7047 use? The needle valve has a threaded inlet connection and an NPT outlet connection, with two ports total.

What is included when I order the 18-7047? You receive one Sierra 18-7047 needle valve assembly, ready to install into a compatible Honda outboard carburetor.

Is the Sierra 18-7047 a genuine Sierra part or aftermarket? The 18-7047 is a genuine Sierra-manufactured replacement part, not a used or reconditioned OEM component.

Can I install the 18-7047 needle valve myself? Replacing a carburetor needle valve like the 18-7047 is a routine part of a carburetor rebuild or fuel system service and is commonly done during standard carburetor maintenance.