So the one you want is the bottom one???
The top one is a power torque which is 160cc.
The bottom one is an early utility and could be 125 or 160cc.
So do you have a power torque or a full crank motor??
Theres 2 different bases in between them.
A rear facing stamped base thats pretty much the same shape as the top one but for a full crank.
A side facing base thats the same as the top one but for a sideways full crank.
If its either of the above you might also need the right disc for it as the regular over later ones off a catcher mower dont fit, the upturned edge hits the handle bolts.
I do believe I have a couple of those in betweens here, might even have one the same as the bottom pic.
Im in Melb, if you want me to look please send a PM.
Cheers, Bob.