Essential KSRP1811D Spray Diverter for Kitchen Faucet, Raw

I have replaced the diverter twice and still not working correctly

Hello.
To answer quickly, I must say that I am not really satisfied with the KSRP1811D diverter.
Initially, the fact of having to remove the entire tap does not make things easier...
Once everything is put back in place with the new diverter, the tap drips at a rate of one drop every five seconds (I replaced both cartridges)...!
And, the reason why I wanted to replace this diverter, the problem has not been eliminated! This problem is that at a certain (average) flow rate (with the handle or the sprayer) there is a fairly strong vibration in the pipework; as if the "plunge" of the diverter started to vibrate for no reason!!!???
P.S.: I have the KS3791PLBS tap and in the repair instructions, it is indeed the KSRP1811D diverter that must be used.
Thank you for your attention. Alain M.

Google translation.

My faucet was manufactured in 2003 or 2003. This is not the correct diverter. I guess the faucet was redesigned. .