A 398-5454A16 and up are all 16amp stators and same thickness, the A at end of part number is a series number. So a 398-5454A16 and up will replace it,as the A32 and A 35 are same thinkness.
First you need to lose the homemade clip-on choke and install correct keeper o-ring. The reason choke won't work is wire tie on cable below solenoid has flaps locked open.