Moulinex model 302

Question

this is an old blender/grinder - it is awesome as far as blending quickly ,crushing ice shakes etc - i cant say enough about it - and would feel very lost without it - i tried to replace with a magic bullet but there is no comparison
i tried to replace with a cuisenart nope not as good as this little moulinex
my problem is this the little plastic part that sits onn the gear (it is about 1 inch high and 3/8in in diameter) has broken in half - i tried to super glue but that is a short term fix - how can i find this part?