Genuine Part Gp1059291 Canister Seal

I noticed that my Kohler (K-4436-AA) toilet would start running randomly throughout the day when it wasnt in use. Reading online it seems that a common problem for running toilets is that the canister seal becomes brittle over time and need to be replaced. There are some great videos on YouTube showing the replacement process for the canister flush valve seal. FYI, The replacement seal is a yellow color while the original seal is red, the product packaging shows that new seal is meant to replace the original red seal. During the seal installation, I confirmed that the yellow seal is indeed a perfect replacement for the original red seal. Additionally, since installing the replacement seal I havent noticed the toilet running randomly anymore. Im hoping that this permanently fixes my running toilet if I notice its running again there is most likely another issue causing the water running.

We have a Kohler Cimarron toilet that has the Red valve seal. This was a perfect fit replacement. Reason we got it was because after 2 years the toilet became very difficult to flush; you really had to put a lot of pressure on the flush handle - it was like it was stuck. Replacing this made all the difference - its back to new. A little tip here, the package comes with instructions on the back so when you come to the part where it shows to rotate the center disc portion of the canister mechanism counter clockwise to loosen, well when I did that it sounded like the plastic was going to snap at the shaft. So heres what you do, just lift the actual canister up enough to reach down below it and grab the center shaft at the base where it connects to the toilet tank. It will feel like a + sign in your hand - take that and turn it counter clockwise to loosen it, and then do the same (clockwise) to tighten it. Its a much sturdier way to take the canister mechanism off and on without feeling like youre going to snap the center shaft off.

Had a Kohler toilet that had a leak due to bad o ring. I looked up the part and this was it. I installed it in about 1 min. Problem solved. Very satisfied.

This part is a perfect OEM replacement. Simple and easy DIY replacement

Good buy

Works perfectly and looks great !

I put off changing the gasket for awhile and I wish I hadn’t. It couldn’t have been easier. I watched a short video on how to remove the canister and it came right out. The whole process took less than 5 minutes

After nine years, the original canister seal disintegrated causing the toilet to continue running. It was difficult to remove the canister top (plastic, didnt want to snap/break it), but once that was done the old seal took some work to remove but this seal went on like a charm. Hoping to get another 9 years out of it.

Easy to install.

My daughter and I were able to easily replace the gasket on my Koehler toilet. I ended up paying a little more for a genuine Koehler gasket and there was a You-Tube explaining how to do the replacement. Very straightforward!