If nothing else, you can always CALL Briggs SUPPORT ... Briggs & Stratton is A.K.A. " Basco "
I'm sure they could provide you with the information... (just be sure you have the PERTINENT info. handy..)
Eng. model , type , family , code , (info. should be on engine sticker or data-plate ) as well as Gen. info. ( Mfg. , HP , year , etc.)
hope this helps ya out .. :thumbsup: