Rubber clutch broke on my Blender Model # KSB5BU3

SOURCE: top part of base broke off

This just happened to me too, and I think I just fixed it.  First you have to get a replacement part called the "blender coupling" (I got mine online from Goodmans for $3.99).  I also replaced the square drive and slinger (two parts come together for $2.99)-that's the little part that sticks up and attaches to the pitcher.
Unscrew the bottom four screws of the base where the rubber feet are.  Remove the rubber skirt to reveal four screws that hold the motor in.  They are way in there so you'll need a long screw driver.  Remove the motor and unscrew the old coupling.  Mine had not been replaced since my grandmother bought this blender who knows when, so the coupling was really stuck.  I did not have a tool narrow enough to get a good grip to apply enough torque to remove the coupling so I had to try a few other tricks.  If your blender is the same, remove the bottom nut, fan blade and two washers.  This gave enough of a rod to grip to get the old coupling off.  (I also had to use some WD40, and heat and cool the coupling a few times to break the old seal).
Good luck!  Hope that helps!

Posted on Jan 20, 2008

SOURCE: a blender parts

You can most likely find all kind of blender parts at www.thegourmetdepotco.com. I just bought a Krups blender rubber drive gear from that online store. It's the best lowest price, compared it to Amazon.com too. Try it.

Posted on Nov 24, 2008

SOURCE: How do I change to

Remove 3 screws on the bottom of the blender
Pull off cover
Use a screwdriver to keep the motor's shaft from spinning
On the other side, use a wrench, grab and unscrew the brass ring in a clockwise motion (It's reverse threaded)
Screw on new replacement blade driver (Counter-clockwise to tighten)
Put blender cover back on
Reinstall the 3 screws on the bottom of the blender
You're done!

I'm serious when I say that the whole process took me about 3 minutes.

Posted on Dec 05, 2009

SOURCE: how do i remove the rubber clutch of my kitchenaid blender

Grab the blade with a rag so you don't cut yourself, then grab the clutch with another rag and turn CLOCKWISE. It's threaded reverse - took me hours to figure this out. I found grabbing with rags or maybe towels worked the best. That should work

Posted on Jan 15, 2010

SOURCE: Rubber washer for Model TSK-9368AP Blender

I just fixed mine with a rubber hose washer. I had to cut the washer in half because it was too thick, but it stopped the leak!

Posted on Mar 30, 2010