Kholer santa rosa flush only half - Kohler - Toilet - One-piece - Santa Rosa - K3323-52

SOURCE: How install Kohler part no. 87988 in Santa Rosa

look under the tank, their should be a nut holding on the old one. by removing that nut the part should free itself.

SOURCE: Just bought and just had

Hi,
I would say yes....here is the .pdf for your toilet and it has nothing like that in it...your toilet should be a simple fill device and flush mechanisim...
I would return it for a new one...

http://www.us.kohler.com/onlinecatalog/pdf/1066506_2.pdf

heatman101

SOURCE: Whine or squealing from tank when Kohler Santa Rosa toilet is flushed.

Sounds like an air lock is making the water fill in squeeze thru the piping. C if u can undo the piping from the tap below the tank and take out tank and try flushing the unit thru from the out side fill pipe. U may hv something stuck in the pipe line. cheers