B17446
Original pump diaphragm set for a Zenith B30 PSEI carburetor as used on, amongst others, the Triumph Herald 1200.
This set also fits the Zenith B33 PSEI.

Using Zenith terminology, this is a "Membrane Kit".
It contains the diaphragm (number 37 in the drawing) and the spring (number 49 in the drawing).
The original code for this kit was "PA".
This product is priced, and sold, as 1 set.
Required quantity per carburetor: 1

These are Numbers 37 + 49 in the drawing of the Zenith PSEI carburetor.
This is genuine Zenith product.

This is Zenith Part Number: B17446
* Made in The UK *