KOHLER Genuine Part Plumbing Fixture Repair Supplies

Perfect fit!

This turned out to be an exact replacement for the part in my Sterling toilet that I purchased approximately 10 years ago. Easy install, but you should also buy a new tank/bowl gasket (1032265) which is sold separately. This was recommended in another review (titled "From an experienced plumber), and his advice to buy that additional gasket saved me a huge headache.This part was manufactured by the same supplier as the original part (Geberit). I still have the original instructions from my purchase 10 years ago, and it's exactly the same. The negative review that shows pictures and calls it "some crap" is misleading and uninformed (unless they bought the wrong part)

Buy this entire assembly (1072320) rather than replace the valve seal washer/flapper (1131496). I tried replacing just the seal and it started leaking again within a couple months. Something else in the assembly must have been failing to assist in creating a good seal and I could not seem to make an adjustment that helped. The new assembly also comes with a replacement gasket for the bottom where the flush valve attached to the tank. That part is not sold individually and is likely pretty corroded by now. For the same reason, you should probably also purchase a new tank/bowl gasket (1032265) which is sold separately. The new flush valve was slightly different where the fill tube connects and it comes in a Kohler box with instructions for Geberit and Sterling models, but it was indeed the right replacement for my Sterling Rockton model.Would give it 5 stars, but overall, I am fed up and disappointed with Kohler. Their so-called "lifetime" warranty is full of loopholes, and their engineering has gotten overly complicated and impractical. After being a big fan for twenty years, I would buy Toto over Kohler hands down. Japanese toilet technology is light years ahead and Toto basically invented the bidet/washlet.

Plumber said it was easy to install this new piece and now the toilet no longer has that running noise all the time! Working very well.

Super to easy to replace, expensive but worth it for genuine Kohler

2nd purchase for our upstairs toilets. The first one is still going strong after 3 plus years.

I struggled with a leaky toilet for months, and this was easier than ever to replace. I just unclipped the existing "cartridge" and inserted the new one. It came with a lot of additional pieces, but the main cartridge itself was sufficient.

This gets two stars from me. Frankly, this is overengineered. They are designed to last 5 years as the orings deteriorate and forcing you to spend $60+ dollars on a new one. Plus, you should also replace the gasket the tank sits on when replacing this, so that's another $15. In addition, the nut on the bottom gets worn out overtime and is very difficult to remove. They don't include the key that makes it easy to remove the nut, so it can be difficult to get off. I just break it when I need to replace. It is almost like clockwork I've had to replace these. Twice, on two toilets, all within a year of each other each time. Next time, I'm just replacing the whole toilet cause it is a joke how expensive these replacements are. I will see you in 5 years when these fail again.