Kohler Faucet Leak Repair Tutorial

Forte® Single-Control Kitchen Sink Faucet with Escutcheon, Sidespray, and Lever Handle (Part Number K-10412)So, guess what happened recently… yep… the kitchen faucet started leaking for at least couple of days now. The leak began to expand and the little kitchen rag was not enough anymore to take care of the leak, so it got annoying and I had to take the faucet apart to find out the problem. And since in this blog I also write Do-It-Yourself and How-To Tutorials, I decided to write this one just in case someone out there might need some help. The Faucet that I’ll be writing about is Forte® Single-Control Kitchen Sink Faucet with Escutcheon, Sidespray, and Lever Handle (Part Number K-10412), and if you would like to buy this faucet just click on its name or on its picture to the right.

We had this faucet for two, three, or more years now, I don’t remember for sure. Our faucet is made by KOHLER® company and I like this company the most out of all other faucet and sink companies, because I worked for a counter top making company and I had to deal with many different sinks and faucets. Yes, in my opinion KOHLER® brand is the best for sinks, toilets, and faucets because of their quality and looks.

Faucet's Bottom LeakWell, for those who want to fix their faucet at home and by themselves, I will begin my little Tutorial below. First of all, just so you know, the leak that our faucet had was on the bottom part of it, between the wide base part and the bottom of the spinning (or turning) spout. This wide base of the faucet is called Escutcheon, but some people don’t have this part, instead their faucets go straight into the counter top.

Faucet's BracketSo, How To repair your Faucet’s bottom leak? Here is how… Turn of the water using the water valves inside the kitchen cabinet which is under the kitchen sink. Unscrew the water hoses that go to the faucet, but be ready for some left over water pouring out of the hoses and the faucet, and make sure that you mark somehow which hose went where. Also, disconnect the Side-spray hose, if you have one. Now, get under the faucet and under the sink, and find and unscrew the long nut that holds up the faucet’s bracket, but make sure not to loose the little washer in between the nut and the bracket.

Faucet's Valve KitNow you can get the faucet in your hands and in a comfortable position which will make it easier to finish taking it apart. Behind the faucet’s handle there is a Plug Button that needs to be taken out by using something like a very small flat screw driver. Inside you’ll see a screw that requires an Allen Wrench, loosen that screw and take off the handle from the big spout. Carefully using only your hands unscrew the Molded Bonnet piece. Using an Adjustable Wrench you can unscrew the Big Nut which was under the Molded Bonnet.

Faucet's Main Body AssemblyNow, Pull out the Valve Kit from the top, and after the valve kit, but from the bottom hole, you can pull out the main Body Assembly. That main body assembly will have the black rubber O’Ring Seals which we will need to replace.

You can just take them to a local faucet or plumber shop and they should be able to give you the same ones for couple bucks or less. Don’t forget to buy, or use, or borrow some grease to put on those O’Ring seals. Also, get a clean cloth and wipe the whole faucet with all of its accessories so it will all be nice and clean and you’ll have a peace of mind when you’ll get done. After cleaning, make sure that the main body assembly that goes inside of the big spout is all nice and greasy, but not too much, and carefully put the main body assembly inside the spout from the bottom hole, Do NOT cut or rip those O’Ring Seals while trying to squeeze them inside. Also, I did have to reglue the undercover part that is below the Escutcheon part with the Silicone Glue.

Well, I believe that is all, now put everything else back together in the backwards order and enjoy your “Like New” faucet :) Your faucet may feel tighter, but it is normal, so don’t worry. Also, here are some helpful links that you may need to get through this repair – Interactive Kohler Parts Diagram, and Dimensions and Measurements of this Faucet, and the Amazon store where you can buy this Faucet for cheaper.

Faucet's Diagram of Parts

7 thoughts on “Kohler Faucet Leak Repair Tutorial

  1. Great ideas in fixing the kitchen faucet.. thanks for this info, it adds knowledge to me on how to do this thing.

  2. Good tutorial, this is really helpful! You even showed the parts of the faucet and what it is called. It is easy to understand and I can totally apply this at home. Great job!

  3. Hi! We have the k-10415, the one without the escutcheon. It had been leaking off and on and after taking apart and tightening all things that could be tightened, it still leaked. We ordered replacement o rings and the leak still persisted. We ordered a new valve, installed, looked like it had fixed the problem, but a few hours later it began leaking again from the bottom, where the faucet meets our counter-top and also from underneath the bonnet piece. Not sure what else we can replace now. Any ideas you might have are much appreciated!

  4. Seems to me if you replaced those important parts and it’s still giving you trouble, then maybe it’s time for a new faucet. Also, just a reminder, when you replaced your o-ring did you remember to put some special grease all over that ring and a little on the inside of the faucet’s body ;)

  5. New faucet??? It’s less than 5 years old! I suppose it may be less than the cost of a plumber for an hour. We’ll have to give lubing the o rings another shot, although I am getting tired of taking the blasted thing apart.

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