74840
This is an idle jet for a Weber DCOM carburetor.

These jets are available from our stock in size:

• 38 F6
• 38 F9
• 40 F8
• 40 F9
• 45 F2
• 45 F6
• 45 F8
• 45 F9
• 46 F9
• 47 F9
• 48 F9
• 49 F9
• 50 F2
• 50 F6
• 50 F8
• 50 F9
• 50 F11
• 50 F12
• 50 F14
• 50 F15
• 55 F2
• 55 F6
• 55 F8
• 55 F9
• 55 F11
• 55 F17
• 57 F21
• 59 F21
• 60 F2
• 60 F6
• 60 F8
• 60 F9
• 60 F21
• 62 F21
• 65 F8
• 65 F9
• 65 F11
• 70 F8
• 70 F11

In order to purchase the correct size, you need to make a choice through the drop down menu just above the "Add to cart" button.

Other sizes may be available on special order.
Please feel free to contact us with your requirements.
Our Contact Page can be found HERE.

The size, or calibration if you want to call it that, is engraved into the jet itself.
That way, you can always determine "what it was when it was produced".

Weber maintains a rather complicated system of marking these idle jets. Part of this is due to the fact that the jets, more or less, have the emulsion tube built-it (or at least air holes).

A complete overview of the Weber DCOM idle jets can be found HERE.

This product is priced and sold as a single unit.
Required quantity per carburettor: 2

This is item number 10 in the drawing of the Weber DCOM carburetor.

This is Weber Part Number: 74840
This is Our Article Reference: DCOEIDLEJET

For an elaborate explanation of the various jets, emulsion tubes and other calibrated Weber parts, we would like to refer you to the official Weber Tuning Manual which you can find HERE.