Replacement diaphragm for the pump jet pump on the Dellorto DHLA series carburetors.
Please note that there are different versions available of this diaphragm, with the metal disk on this one measuring 25.1 mm in diameter. as used on DHLA45E version as, amongst others, originally delivered on the Lotus 2.2 Liter.
Required quantity per carburettor: 1
This is item number 76 in the drawing.