12775.004
This is the choke spring retainer for a Weber IDF carburetor.
The ridge on this version measures 9.85 mm in diameter.
The smaller version, 7.8 mm, can be found HERE.
This product is priced, and sold, as a single unit.
Required quantity per carburettor: 2
This is item number 75 in the drawing of the Weber IDF carburetor.
This is Weber Part Number: 12775.004