Snapper 28" Hi Vac 12.5 hp B&S INTEK Carburetor

I am trying to find the correct replacement for my carburetor currently installed on my Snapper 28" Hi Vac rear engine rider. They seem to be easy to find for the 14hp and larger INTEK engines and that carb for the 14hp engine might even fit the 12.5hp. I dont know. Im hoping some of you might have the information I need. I will buy a refurbished or new, I just need the replacement so I can get my greatest little mower back to cutting my lawn.
Thanks in advance,
 
Sincerely,
 
                   JRW758-John