Part # needed for governer rod

#1
I have a Tecumseh 6 h.p. engine and the rod to the governer is broken. Went to the local lawnmower shop and the rod was not in the picture for some reason. The numbers on the housing are 143-626 252 serial # 4151D. It is a horizontal 6 h.p. , can anyone help with a part # ? The engine is on an old Sears riding mower. Also need the part # for the spring that goes to the rod also. Thanks for any help, John.
 
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