Special Nut / Drain Plug for the float bowl on the Dellorto PHF carburetors.
Please note: there is a total of 3 different plugs available which are NOT interchangeable.
These are most easily identified by the spanner size needed for them.
This particular versions requires a 21 mm spanner.
This nut uses Fiber Seal 4057 to seal against the float bowl.
Required quantity per carburettor: 1
This is item number 74 in the drawing.
Dellorto Part Number: 10238