This is an needle valve for a Weber 40 DCO3 carburetor.
This is a so-called "Needle Valve Assembly" as it is more than just the "needle".
The assembly, or set, is supplied as seen on the photograph here.
The base, that is screwed into the top cover, is drilled to a specific size or calibration and it is this that determines the flow of fuel.
The needle is equipped with a spring-loaded ball.
The base is engraved with the calibration size.
This set is available in the following sizes:
This product is priced and sold as a single unit.
Required quantity per carburettor: 1
This is item number 48 in the drawing.
To order the correct size needle valve for your application, please check your existing needle valve for its markings.
You then need to choose the correct size / calibration by selecting it through the drop-down menu marked "Size / Calibration *" just above the "Add to cart" button on this page.
Weber Part Number: 79504