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.
That why you need to post pictures. The unit with nut refers to spanner nut that holds driveshaft and bearing in place. Also there is not a model called Torpedo, that just refers to shape.