Quote from dabrown56 on February 28, 2026, 3:16 pm

I need a small primer cup for my SDB, in the parts diagram it shows the same part number (550/SDB for the large primer cup) however, it shows two different part numbers for the Small Primer Cup (one for the 550 and another for the SDB).  Is this correct or, will the 550 Small Primer Cup work in a SDB?

Thanks,

 

Dave