Welcome to Just Answer, I will do my best to Answer your question to the best of my professional ability. After you remove the handle you now need to unscrew the bonnet counter clock wise , this is what holds the cartridge into place once you remove the bonnet you can then take out the old cartridge and then drop in the new one then tighten up the bonnet back into place by turning it clock wise and then put the handle back on . Keep in mind before you do anything you must first turn the water off to the faucet first . Also below is a link for a parts break down so you can see how everything goes together , good luck and thank you for Choosing Just Answer.
I actually figured it out on my own. I will accept your answer though since it is exactly what I had to do if you could be so kind as to answer my follow up question.
The reason I think I need to replace this cartridge is because when I turn on the faucet it makes a klunk noise. This is of itself not a major problem, but... When I turn on the sprayer, it does not work, the same klunk noise is made but no water. Then when I let go of the sprayer, instead of the water coming back on thru the faucet, there is no water at all. Sometimes I have to let the facuet sit off for several hours before it begins to work again. Is this truly a problem with the cartridge? NOTE: After removing the old cartridge today and just putting it back in (no one had a replacement), it still makes the klunk, there is now a trickle of water coming from the sprayer, and the faucet does not have to sit for hours before working, it now comes back on when I turn off the handle and turn in it back on.
Thank you for you answer(s).
You should contact Kohler direct and order the part or go to ace hardware they have a good selection of replacement parts, It would most likely be the cartridge based on what you have described , Thank you for Choosing Just Answer.
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So, is the diverter the same as the cartridge or something else altogether? If it is something else, where is it in this faucet? I.E. is it in the barrel where the cartridge is, in the faucet itself?