Intake gasket not included, no 10507 if you need it too.
The product fits
Sachs
50/3, 50/4
50/A, 50/2
Delivery:
kets are sometimes said to fit poorly from some manufacturers. That is often caused from the gasket have dried in storage. Moisten the gasket by soaking it in water and let it rest a few hours in a plastic bag before assembly.
From Teknos reparation handbook for motorcycles, 1955.