We bought a couple of years ago a nice KitchenAid 5.5 Quart Mixer. Nice and heavy duty. With an all metal gear train. Of course we didn't know it was all connected with a PLASTIC transmission housing. Needless to say, the housing let go. So we called KitchenAid and since it was out of warranty, they would not help. Just call a service center. Of course there ain't one in Kentucky. And to ship a heavy mixer would be expensive. They would not even give us the part number. Call the service center and pay!!!
So an involved internet search yielded the part number: 8211779
And a close up of the crack:
Anyway, a call to The Mendingshed yielded the fact that the housing for the 6 quart model will fit the 5.5 quart model. And it is METAL. Part Number : 8212396 The plastic one is no longer recommended.
A hint from one of the pages, if there are no metal shavings, just reuse the grease from the old housing instead of having to buy enough to do 5 units.
KitchenAid, are you listening, fix this problem!!!!